Load Specifications
Bullet:.243 | 88gr | Berger Varmint
Bullet Manufacturer:Berger
Bullet Weight:88 gr
Bullet Diameter:0.243"
Bullet Length:<<locked>>
Caliber:.243 Ackley Improved load data
Case Length (l3):2.045"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:57 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:55,259 psi
Recommended Twist Rate:1:9.5
Load data in caliber .243 Ackley Improved with .243 | 88gr | Berger Varmint bullet and 180 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Alliant Reloder-16 and Somchem S365.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 82% | 49,719 psi | 90% | 3002 fps | 100% |
| Accurate 2495 | <<locked>> | 82% | 49,574 psi | 90% | 2999 fps | 100% |
| Accurate 2495 | <<locked>> | 82% | 49,850 psi | 90% | 3005 fps | 100% |
| Accurate 3100ᴾ | <<locked>> | 100% | 47,906 psi | 87% | 3061 fps | 97.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 47,790 psi | 86% | 3061 fps | 97.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 47,950 psi | 87% | 3064 fps | 97.6% |
| Accurate 4064 | <<locked>> | 82% | 46,963 psi | 85% | 2999 fps | 100% |
| Accurate 4064 | <<locked>> | 82% | 46,818 psi | 85% | 2999 fps | 100% |
| Accurate 4064 | <<locked>> | 82% | 47,079 psi | 85% | 3002 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 46,702 psi | 85% | 3071 fps | 98.7% |
| Accurate 4350 | <<locked>> | 90% | 46,601 psi | 84% | 3068 fps | 98.7% |
| Accurate 4350 | <<locked>> | 90% | 46,833 psi | 85% | 3074 fps | 98.7% |
| ADI AR 2208 | <<locked>> | 84% | 47,921 psi | 87% | 3025 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 84% | 47,805 psi | 87% | 3025 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 84% | 48,066 psi | 87% | 3028 fps | 99.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 49,400 psi | 89% | 3196 fps | 99.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 48,965 psi | 89% | 3182 fps | 99.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 49,559 psi | 90% | 3196 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 48,124 psi | 87% | 3051 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 48,008 psi | 87% | 3048 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 48,225 psi | 87% | 3054 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 82% | 48,327 psi | 87% | 3068 fps | 99.3% |
| Alliant Reloder-15 | <<locked>> | 82% | 48,211 psi | 87% | 3064 fps | 99.3% |
| Alliant Reloder-15 | <<locked>> | 82% | 48,486 psi | 88% | 3071 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 92% | 47,993 psi | 87% | 3140 fps | 99.2% |
| Alliant Reloder-16 | <<locked>> | 92% | 47,906 psi | 87% | 3136 fps | 99.2% |
| Alliant Reloder-16 | <<locked>> | 92% | 48,095 psi | 87% | 3143 fps | 99.3% |
| Alliant Reloder-17 | <<locked>> | 88% | 48,602 psi | 88% | 3169 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 88% | 48,515 psi | 88% | 3166 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 88% | 48,704 psi | 88% | 3173 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 45,179 psi | 82% | 3094 fps | 99.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 45,063 psi | 82% | 3091 fps | 99.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 45,252 psi | 82% | 3094 fps | 99.7% |
| Alliant Reloder-26 | <<locked>> | 98% | 47,863 psi | 87% | 3215 fps | 98.9% |
| Alliant Reloder-26 | <<locked>> | 98% | 47,485 psi | 86% | 3209 fps | 98.8% |
| Alliant Reloder-26 | <<locked>> | 98% | 47,935 psi | 87% | 3222 fps | 99% |
| Bofors RP3 | <<locked>> | 84% | 48,486 psi | 88% | 3064 fps | 99.9% |
| Bofors RP3 | <<locked>> | 84% | 48,370 psi | 88% | 3061 fps | 99.9% |
| Bofors RP3 | <<locked>> | 84% | 48,573 psi | 88% | 3064 fps | 99.9% |
| Bofors RP7 | <<locked>> | 88% | 48,602 psi | 88% | 3028 fps | 96.1% |
| Bofors RP7 | <<locked>> | 88% | 48,515 psi | 88% | 3028 fps | 96% |
| Bofors RP7 | <<locked>> | 88% | 48,675 psi | 88% | 3031 fps | 96.1% |
| Hodgdon H380 | <<locked>> | 84% | 48,979 psi | 89% | 3068 fps | 98.6% |
| Hodgdon H380 | <<locked>> | 84% | 48,878 psi | 88% | 3068 fps | 98.6% |
| Hodgdon H380 | <<locked>> | 84% | 49,095 psi | 89% | 3071 fps | 98.7% |
| Hodgdon H414 | <<locked>> | 90% | 49,443 psi | 89% | 3130 fps | 97% |
| Hodgdon H414 | <<locked>> | 90% | 49,008 psi | 89% | 3120 fps | 96.9% |
| Hodgdon H414 | <<locked>> | 90% | 49,545 psi | 90% | 3130 fps | 97% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 48,124 psi | 87% | 3071 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 48,008 psi | 87% | 3068 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 48,240 psi | 87% | 3074 fps | 99.8% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 49,777 psi | 90% | 3117 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 49,676 psi | 90% | 3114 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 49,139 psi | 89% | 3150 fps | 96.5% |
| Hodgdon Superformance | <<locked>> | 90% | 49,066 psi | 89% | 3150 fps | 96.5% |
| Hodgdon Superformance | <<locked>> | 90% | 49,226 psi | 89% | 3153 fps | 96.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,766 psi | 65% | 1995 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,882 psi | 65% | 1998 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,955 psi | 65% | 2001 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 47,123 psi | 85% | 3002 fps | 99.2% |
| IMR 4064 | <<locked>> | 82% | 47,007 psi | 85% | 2999 fps | 99.2% |
| IMR 4064 | <<locked>> | 82% | 47,239 psi | 85% | 3005 fps | 99.2% |
| IMR 4166 Enduron | <<locked>> | 82% | 49,893 psi | 90% | 3035 fps | 97% |
| IMR 4166 Enduron | <<locked>> | 82% | 49,806 psi | 90% | 3031 fps | 96.9% |
| IMR 4166 Enduron | <<locked>> | 82% | 49,995 psi | 90% | 3035 fps | 97% |
| IMR 4350 | <<locked>> | 92% | 49,023 psi | 89% | 3058 fps | 96.2% |
| IMR 4350 | <<locked>> | 92% | 48,892 psi | 88% | 3054 fps | 96.2% |
| IMR 4350 | <<locked>> | 92% | 49,400 psi | 89% | 3064 fps | 96.3% |
| IMR 4451 Enduron | <<locked>> | 86% | 47,137 psi | 85% | 3005 fps | 96.2% |
| IMR 4451 Enduron | <<locked>> | 86% | 47,050 psi | 85% | 3002 fps | 96.1% |
| IMR 4451 Enduron | <<locked>> | 86% | 47,224 psi | 85% | 3009 fps | 96.3% |
| IMR 4831 | <<locked>> | 92% | 47,659 psi | 86% | 3071 fps | 98.9% |
| IMR 4831 | <<locked>> | 92% | 47,543 psi | 86% | 3068 fps | 98.9% |
| IMR 4831 | <<locked>> | 92% | 47,761 psi | 86% | 3074 fps | 98.9% |
| IMR 4895 | <<locked>> | 82% | 49,588 psi | 90% | 3100 fps | 99.7% |
| IMR 4895 | <<locked>> | 82% | 49,472 psi | 90% | 3100 fps | 99.7% |
| IMR 4895 | <<locked>> | 82% | 49,705 psi | 90% | 3104 fps | 99.7% |
| Lovex S062 | <<locked>> | 82% | 47,282 psi | 86% | 3005 fps | 99.9% |
| Lovex S062 | <<locked>> | 82% | 47,152 psi | 85% | 3002 fps | 99.9% |
| Lovex S062 | <<locked>> | 82% | 47,384 psi | 86% | 3009 fps | 99.9% |
| Lovex S065 | <<locked>> | 88% | 47,195 psi | 85% | 3009 fps | 97.7% |
| Lovex S065 | <<locked>> | 90% | 49,980 psi | 90% | 3061 fps | 98.2% |
| Lovex S065 | <<locked>> | 88% | 47,268 psi | 86% | 3012 fps | 97.7% |
| Lovex S070 | <<locked>> | 90% | 48,051 psi | 87% | 3041 fps | 96.8% |
| Lovex S070 | <<locked>> | 90% | 47,601 psi | 86% | 3035 fps | 96.7% |
| Lovex S070 | <<locked>> | 90% | 48,124 psi | 87% | 3045 fps | 96.8% |
| Norma 203B | <<locked>> | 82% | 47,688 psi | 86% | 3054 fps | 99.5% |
| Norma 203B | <<locked>> | 82% | 47,572 psi | 86% | 3048 fps | 99.5% |
| Norma 203B | <<locked>> | 82% | 47,805 psi | 87% | 3058 fps | 99.6% |
| Norma MRP | <<locked>> | 98% | 47,311 psi | 86% | 3166 fps | 96.3% |
| Norma MRP | <<locked>> | 98% | 47,253 psi | 86% | 3163 fps | 96.3% |
| Norma MRP | <<locked>> | 98% | 47,384 psi | 86% | 3166 fps | 96.4% |
| Norma URP | <<locked>> | 92% | 49,342 psi | 89% | 3123 fps | 99% |
| Norma URP | <<locked>> | 92% | 49,255 psi | 89% | 3123 fps | 99% |
| Norma URP | <<locked>> | 92% | 49,443 psi | 89% | 3123 fps | 99% |
| Ramshot Big Game | <<locked>> | 82% | 48,008 psi | 87% | 3074 fps | 99.5% |
| Ramshot Big Game | <<locked>> | 82% | 47,587 psi | 86% | 3068 fps | 99.4% |
| Ramshot Big Game | <<locked>> | 82% | 48,153 psi | 87% | 3077 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 92% | 48,153 psi | 87% | 3110 fps | 97.5% |
| Ramshot Hunter | <<locked>> | 92% | 48,022 psi | 87% | 3107 fps | 97.5% |
| Ramshot Hunter | <<locked>> | 92% | 48,211 psi | 87% | 3114 fps | 97.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,593 psi | 66% | 2047 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,405 psi | 66% | 2044 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,477 psi | 66% | 2047 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 49,327 psi | 89% | 3051 fps | 97.4% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 49,240 psi | 89% | 3051 fps | 97.4% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 49,400 psi | 89% | 3054 fps | 97.5% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 48,254 psi | 87% | 3173 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 48,138 psi | 87% | 3169 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 48,341 psi | 87% | 3173 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 46,630 psi | 84% | 3091 fps | 98.5% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 49,922 psi | 90% | 3153 fps | 99% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 46,760 psi | 85% | 3094 fps | 98.5% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 49,168 psi | 89% | 3179 fps | 98.7% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 48,762 psi | 88% | 3169 fps | 98.6% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 49,226 psi | 89% | 3179 fps | 98.8% |
| Rottweil R 902 | <<locked>> | 82% | 49,342 psi | 89% | 3025 fps | 100% |
| Rottweil R 902 | <<locked>> | 82% | 49,211 psi | 89% | 3022 fps | 100% |
| Rottweil R 902 | <<locked>> | 82% | 49,458 psi | 90% | 3028 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 48,704 psi | 88% | 3061 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 86% | 48,588 psi | 88% | 3058 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 86% | 48,791 psi | 88% | 3061 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 88% | 48,602 psi | 88% | 3028 fps | 96.1% |
| Rottweil R 907 | <<locked>> | 88% | 48,515 psi | 88% | 3028 fps | 96% |
| Rottweil R 907 | <<locked>> | 88% | 48,675 psi | 88% | 3031 fps | 96.1% |
| Shooters World Long Rifle | <<locked>> | 88% | 47,195 psi | 85% | 3009 fps | 97.7% |
| Shooters World Long Rifle | <<locked>> | 90% | 49,980 psi | 90% | 3061 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 88% | 47,268 psi | 86% | 3012 fps | 97.7% |
| Shooters World Precision | <<locked>> | 82% | 47,282 psi | 86% | 3005 fps | 99.9% |
| Shooters World Precision | <<locked>> | 82% | 47,152 psi | 85% | 3002 fps | 99.9% |
| Shooters World Precision | <<locked>> | 82% | 47,384 psi | 86% | 3009 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 90% | 48,051 psi | 87% | 3041 fps | 96.8% |
| Shooters World SW4350 | <<locked>> | 90% | 47,601 psi | 86% | 3035 fps | 96.7% |
| Shooters World SW4350 | <<locked>> | 90% | 48,124 psi | 87% | 3045 fps | 96.8% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 46,862 psi | 85% | 3058 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 49,705 psi | 90% | 3114 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 47,007 psi | 85% | 3061 fps | 99.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 47,384 psi | 86% | 2917 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 47,268 psi | 86% | 2913 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 47,500 psi | 86% | 2920 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 49,719 psi | 90% | 3005 fps | 97% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 49,647 psi | 90% | 3002 fps | 96.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 49,777 psi | 90% | 3009 fps | 97% |
| Somchem S355 | <<locked>> | 86% | 48,834 psi | 88% | 3058 fps | 99.8% |
| Somchem S355 | <<locked>> | 86% | 48,733 psi | 88% | 3054 fps | 99.8% |
| Somchem S355 | <<locked>> | 86% | 48,936 psi | 89% | 3058 fps | 99.8% |
| Somchem S365 | <<locked>> | 94% | 47,892 psi | 87% | 3130 fps | 100% |
| Somchem S365 | <<locked>> | 94% | 47,805 psi | 87% | 3130 fps | 100% |
| Somchem S365 | <<locked>> | 94% | 47,993 psi | 87% | 3133 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 47,456 psi | 86% | 3054 fps | 95.8% |
| Vihtavuori N135 | <<locked>> | 82% | 49,356 psi | 89% | 2995 fps | 100% |
| Vihtavuori N135 | <<locked>> | 82% | 49,211 psi | 89% | 2995 fps | 100% |
| Vihtavuori N135 | <<locked>> | 82% | 49,487 psi | 90% | 2999 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 49,763 psi | 90% | 3009 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 49,647 psi | 90% | 3005 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 49,864 psi | 90% | 3009 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 49,980 psi | 90% | 3035 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 49,893 psi | 90% | 3035 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 47,108 psi | 85% | 2986 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 48,095 psi | 87% | 3061 fps | 98.8% |
| Vihtavuori N160 | <<locked>> | 90% | 47,979 psi | 87% | 3058 fps | 98.8% |
| Vihtavuori N160 | <<locked>> | 90% | 48,167 psi | 87% | 3064 fps | 98.8% |
| Vihtavuori N540 | <<locked>> | 82% | 47,877 psi | 87% | 2992 fps | 100% |
| Vihtavuori N540 | <<locked>> | 82% | 47,761 psi | 86% | 2989 fps | 100% |
| Vihtavuori N540 | <<locked>> | 82% | 48,327 psi | 87% | 2999 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 47,587 psi | 86% | 3064 fps | 98.6% |
| Vihtavuori N550 | <<locked>> | 90% | 47,181 psi | 85% | 3058 fps | 98.5% |
| Vihtavuori N550 | <<locked>> | 90% | 47,703 psi | 86% | 3068 fps | 98.6% |
| Vihtavuori N555 | <<locked>> | 98% | 46,920 psi | 85% | 3114 fps | 99.2% |
| Vihtavuori N555 | <<locked>> | 98% | 46,862 psi | 85% | 3114 fps | 99.2% |
| Vihtavuori N555 | <<locked>> | 98% | 47,340 psi | 86% | 3123 fps | 99.3% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 47,906 psi | 87% | 3031 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 47,848 psi | 87% | 3031 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 47,964 psi | 87% | 3035 fps | 99.9% |
| Winchester 760 | <<locked>> | 90% | 49,443 psi | 89% | 3130 fps | 97% |
| Winchester 760 | <<locked>> | 90% | 49,371 psi | 89% | 3127 fps | 96.9% |
| Winchester 760 | <<locked>> | 90% | 49,545 psi | 90% | 3130 fps | 97% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 40,683 psi | 74% | 3120 fps | 99.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 40,611 psi | 73% | 3117 fps | 99.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 40,785 psi | 74% | 3120 fps | 99.9% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 46,659 psi | 84% | 2953 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 46,514 psi | 84% | 2946 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 46,804 psi | 85% | 2953 fps | 100% |
| Accurate 3100 | <<locked>> | 94% | 38,798 psi | 70% | 2874 fps | 95% |
| Accurate 3100 | <<locked>> | 96% | 41,640 psi | 75% | 2936 fps | 95.9% |
| Accurate 3100 | <<locked>> | 94% | 39,160 psi | 71% | 2881 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 44,150 psi | 80% | 2946 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 44,019 psi | 80% | 2946 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 44,280 psi | 80% | 2949 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 35,418 psi | 64% | 2815 fps | 95.7% |
| Accurate 4350 | <<locked>> | 82% | 35,302 psi | 64% | 2815 fps | 95.6% |
| Accurate 4350 | <<locked>> | 82% | 35,520 psi | 64% | 2822 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 42,177 psi | 76% | 2907 fps | 98.2% |
| ADI AR 2208 | <<locked>> | 80% | 42,061 psi | 76% | 2904 fps | 98.2% |
| ADI AR 2208 | <<locked>> | 80% | 42,279 psi | 77% | 2910 fps | 98.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 45,803 psi | 83% | 3120 fps | 98.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 45,701 psi | 83% | 3117 fps | 98.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 45,890 psi | 83% | 3120 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,293 psi | 77% | 2933 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,163 psi | 76% | 2930 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,395 psi | 77% | 2936 fps | 99.4% |
| Alliant Reloder-15 | <<locked>> | 80% | 45,165 psi | 82% | 3005 fps | 98.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 45,049 psi | 82% | 2999 fps | 98.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 45,281 psi | 82% | 3005 fps | 98.9% |
| Alliant Reloder-16 | 38.4 gr | 82% | 35,056 psi | 63% | 2831 fps | 95.7% |
| Alliant Reloder-16 | 38.4 gr | 82% | 34,969 psi | 63% | 2828 fps | 95.6% |
| Alliant Reloder-16 | 38.4 gr | 82% | 35,157 psi | 64% | 2835 fps | 95.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 36,840 psi | 67% | 2904 fps | 98.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 36,738 psi | 66% | 2900 fps | 98% |
| Alliant Reloder-17 | <<locked>> | 80% | 36,941 psi | 67% | 2910 fps | 98.1% |
| Alliant Reloder-23 | <<locked>> | 88% | 30,835 psi | 56% | 2726 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 88% | 30,530 psi | 55% | 2717 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 88% | 30,908 psi | 56% | 2730 fps | 95.6% |
| Alliant Reloder-26 | 46.5 gr | 90% | 35,853 psi | 65% | 2927 fps | 95.2% |
| Alliant Reloder-26 | 46.5 gr | 90% | 35,549 psi | 64% | 2917 fps | 95% |
| Alliant Reloder-26 | 46.5 gr | 90% | 35,911 psi | 65% | 2927 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 42,482 psi | 77% | 2943 fps | 99.4% |
| Bofors RP3 | <<locked>> | 80% | 42,032 psi | 76% | 2933 fps | 99.3% |
| Bofors RP3 | <<locked>> | 80% | 42,583 psi | 77% | 2946 fps | 99.4% |
| Bofors RP7 | <<locked>> | 86% | 45,469 psi | 82% | 2966 fps | 95.2% |
| Bofors RP7 | <<locked>> | 86% | 45,353 psi | 82% | 2963 fps | 95.2% |
| Bofors RP7 | <<locked>> | 86% | 45,847 psi | 83% | 2976 fps | 95.4% |
| Hodgdon H380 | <<locked>> | 80% | 43,018 psi | 78% | 2949 fps | 97.5% |
| Hodgdon H380 | <<locked>> | 80% | 42,917 psi | 78% | 2943 fps | 97.4% |
| Hodgdon H380 | <<locked>> | 80% | 43,120 psi | 78% | 2949 fps | 97.5% |
| Hodgdon H414 | <<locked>> | 86% | 43,120 psi | 78% | 2999 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 86% | 43,033 psi | 78% | 2995 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 86% | 43,221 psi | 78% | 3002 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,298 psi | 55% | 2657 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,197 psi | 55% | 2654 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,400 psi | 55% | 2661 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 46,485 psi | 84% | 3054 fps | 99.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 46,340 psi | 84% | 3054 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 88% | 45,905 psi | 83% | 3084 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 88% | 45,513 psi | 82% | 3074 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 88% | 45,963 psi | 83% | 3084 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,716 psi | 48% | 1788 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,803 psi | 49% | 1788 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,905 psi | 49% | 1791 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 44,324 psi | 80% | 2946 fps | 98.8% |
| IMR 4064 | <<locked>> | 80% | 44,208 psi | 80% | 2943 fps | 98.8% |
| IMR 4064 | <<locked>> | 80% | 44,440 psi | 80% | 2949 fps | 98.8% |
| IMR 4166 Enduron | <<locked>> | 80% | 46,731 psi | 85% | 2969 fps | 96.2% |
| IMR 4166 Enduron | <<locked>> | 80% | 46,630 psi | 84% | 2969 fps | 96.2% |
| IMR 4166 Enduron | <<locked>> | 80% | 46,833 psi | 85% | 2976 fps | 96.2% |
| IMR 4350 | <<locked>> | 90% | 46,166 psi | 84% | 2999 fps | 95.5% |
| IMR 4350 | <<locked>> | 90% | 46,093 psi | 83% | 2999 fps | 95.4% |
| IMR 4350 | <<locked>> | 90% | 46,224 psi | 84% | 3002 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 84% | 44,425 psi | 80% | 2946 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 84% | 44,338 psi | 80% | 2946 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 84% | 44,512 psi | 81% | 2949 fps | 95.5% |
| IMR 4831 | <<locked>> | 82% | 34,069 psi | 62% | 2762 fps | 95.2% |
| IMR 4831 | <<locked>> | 82% | 33,968 psi | 61% | 2762 fps | 95.2% |
| IMR 4831 | <<locked>> | 82% | 34,156 psi | 62% | 2769 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 46,325 psi | 84% | 3038 fps | 99.4% |
| IMR 4895 | <<locked>> | 80% | 46,195 psi | 84% | 3035 fps | 99.4% |
| IMR 4895 | <<locked>> | 80% | 46,441 psi | 84% | 3038 fps | 99.4% |
| Lovex S062 | <<locked>> | 80% | 44,469 psi | 80% | 2949 fps | 99.7% |
| Lovex S062 | <<locked>> | 80% | 44,338 psi | 80% | 2946 fps | 99.7% |
| Lovex S062 | <<locked>> | 80% | 44,585 psi | 81% | 2953 fps | 99.8% |
| Lovex S065 | <<locked>> | 82% | 38,899 psi | 70% | 2825 fps | 95.4% |
| Lovex S065 | <<locked>> | 82% | 38,798 psi | 70% | 2822 fps | 95.3% |
| Lovex S065 | <<locked>> | 82% | 38,986 psi | 71% | 2828 fps | 95.4% |
| Lovex S070 | <<locked>> | 86% | 42,322 psi | 77% | 2923 fps | 95.2% |
| Lovex S070 | <<locked>> | 86% | 42,206 psi | 76% | 2920 fps | 95.1% |
| Lovex S070 | <<locked>> | 86% | 42,409 psi | 77% | 2927 fps | 95.3% |
| Norma 203B | <<locked>> | 80% | 44,541 psi | 81% | 2989 fps | 99.1% |
| Norma 203B | <<locked>> | 80% | 44,454 psi | 80% | 2989 fps | 99.1% |
| Norma 203B | <<locked>> | 80% | 44,686 psi | 81% | 2995 fps | 99.2% |
| Norma MRP | <<locked>> | 96% | 44,164 psi | 80% | 3094 fps | 95.4% |
| Norma MRP | <<locked>> | 96% | 44,106 psi | 80% | 3094 fps | 95.3% |
| Norma MRP | <<locked>> | 96% | 44,251 psi | 80% | 3097 fps | 95.4% |
| Norma URP | <<locked>> | 82% | 35,520 psi | 64% | 2818 fps | 95.6% |
| Norma URP | <<locked>> | 82% | 35,418 psi | 64% | 2815 fps | 95.5% |
| Norma URP | <<locked>> | 82% | 35,621 psi | 64% | 2822 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 44,585 psi | 81% | 3009 fps | 99.1% |
| Ramshot Big Game | <<locked>> | 80% | 44,425 psi | 80% | 3005 fps | 99% |
| Ramshot Big Game | <<locked>> | 80% | 44,672 psi | 81% | 3009 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 86% | 39,552 psi | 72% | 2923 fps | 95% |
| Ramshot Hunter | <<locked>> | 88% | 41,916 psi | 76% | 2979 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 86% | 39,639 psi | 72% | 2927 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,267 psi | 49% | 1834 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,079 psi | 49% | 1827 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,180 psi | 49% | 1834 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,207 psi | 78% | 2927 fps | 95.9% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,105 psi | 78% | 2923 fps | 95.9% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,294 psi | 78% | 2930 fps | 96% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 39,160 psi | 71% | 2979 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 39,059 psi | 71% | 2972 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 39,305 psi | 71% | 2979 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 35,201 psi | 64% | 2831 fps | 95.2% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 35,056 psi | 63% | 2828 fps | 95.1% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 35,273 psi | 64% | 2835 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 37,246 psi | 67% | 2900 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 37,130 psi | 67% | 2897 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 37,304 psi | 68% | 2904 fps | 95.3% |
| Rottweil R 902 | <<locked>> | 80% | 46,412 psi | 84% | 2972 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 46,296 psi | 84% | 2966 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 80% | 46,528 psi | 84% | 2972 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 39,784 psi | 72% | 2881 fps | 98.8% |
| Rottweil R 903 | <<locked>> | 80% | 39,653 psi | 72% | 2874 fps | 98.8% |
| Rottweil R 903 | <<locked>> | 80% | 39,900 psi | 72% | 2881 fps | 98.8% |
| Rottweil R 907 | <<locked>> | 86% | 45,469 psi | 82% | 2966 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 86% | 45,353 psi | 82% | 2963 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 86% | 45,847 psi | 83% | 2976 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 82% | 38,899 psi | 70% | 2825 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 82% | 38,798 psi | 70% | 2822 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 82% | 38,986 psi | 71% | 2828 fps | 95.4% |
| Shooters World Precision | <<locked>> | 80% | 44,469 psi | 80% | 2949 fps | 99.7% |
| Shooters World Precision | <<locked>> | 80% | 44,338 psi | 80% | 2946 fps | 99.7% |
| Shooters World Precision | <<locked>> | 80% | 44,585 psi | 81% | 2953 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 42,322 psi | 77% | 2923 fps | 95.2% |
| Shooters World SW4350 | <<locked>> | 86% | 42,206 psi | 76% | 2920 fps | 95.1% |
| Shooters World SW4350 | <<locked>> | 86% | 42,409 psi | 77% | 2927 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 40,901 psi | 74% | 2933 fps | 98.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 40,785 psi | 74% | 2930 fps | 98.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,002 psi | 74% | 2936 fps | 98.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,785 psi | 76% | 2815 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,713 psi | 75% | 2815 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,626 psi | 75% | 2812 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 43,714 psi | 79% | 2887 fps | 95.4% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 43,598 psi | 79% | 2884 fps | 95.4% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 43,772 psi | 79% | 2887 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 40,364 psi | 73% | 2884 fps | 98.7% |
| Somchem S355 | <<locked>> | 80% | 40,248 psi | 73% | 2881 fps | 98.7% |
| Somchem S355 | <<locked>> | 80% | 40,480 psi | 73% | 2884 fps | 98.8% |
| Somchem S365 | 38.2 gr | 80% | 29,689 psi | 54% | 2697 fps | 96.9% |
| Somchem S365 | 38.2 gr | 80% | 29,602 psi | 54% | 2694 fps | 96.8% |
| Somchem S365 | 38.2 gr | 80% | 29,776 psi | 54% | 2700 fps | 96.9% |
| Somchem S385 | <<locked>> | 94% | 44,643 psi | 81% | 2995 fps | 95% |
| Vihtavuori N135 | <<locked>> | 80% | 46,296 psi | 84% | 2946 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 46,166 psi | 84% | 2943 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 46,122 psi | 83% | 2943 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,543 psi | 84% | 2949 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,412 psi | 84% | 2949 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,659 psi | 84% | 2953 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 38,450 psi | 70% | 2808 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 80% | 38,334 psi | 69% | 2805 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 80% | 38,551 psi | 70% | 2812 fps | 99.3% |
| Vihtavuori N160 | <<locked>> | 80% | 34,389 psi | 62% | 2753 fps | 95.1% |
| Vihtavuori N160 | <<locked>> | 80% | 34,287 psi | 62% | 2753 fps | 95% |
| Vihtavuori N160 | <<locked>> | 80% | 34,490 psi | 62% | 2759 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 80% | 45,107 psi | 82% | 2943 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 45,005 psi | 81% | 2940 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 45,208 psi | 82% | 2943 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 36,303 psi | 66% | 2815 fps | 95.6% |
| Vihtavuori N550 | <<locked>> | 82% | 36,201 psi | 66% | 2812 fps | 95.5% |
| Vihtavuori N550 | <<locked>> | 82% | 36,651 psi | 66% | 2822 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 88% | 33,518 psi | 61% | 2805 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 88% | 33,431 psi | 60% | 2805 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 88% | 33,881 psi | 61% | 2818 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,185 psi | 62% | 2730 fps | 97.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,895 psi | 61% | 2723 fps | 97.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,243 psi | 62% | 2733 fps | 97.5% |
| Winchester 760 | <<locked>> | 86% | 43,120 psi | 78% | 2999 fps | 95.2% |
| Winchester 760 | <<locked>> | 86% | 43,033 psi | 78% | 2995 fps | 95.2% |
| Winchester 760 | <<locked>> | 86% | 43,221 psi | 78% | 3002 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 90% | 29,037 psi | 53% | 2743 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 90% | 28,964 psi | 52% | 2740 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 90% | 29,109 psi | 53% | 2746 fps | 95.1% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 180 powders for .243 Ackley Improved loaded with the .243 | 88gr | Berger Varmint. Alliant Reloder-26 delivers the highest muzzle velocity at 3,222 fps; across all powders the maximum-charge window runs from 1,995 fps to 3,222 fps. Accurate 3100 gives the best case fill at 100 %, and 180 of the 180 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (381 MPa), the top charges use 65–90 %, leaving at least 10 % headroom. The 88.0 gr projectile in 0.243" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 3100, Accurate 3100 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. Alliant Reloder-26, Alliant Reloder-16, Somchem S365 rank at the top here: for .243 Ackley Improved with the .243 | 88gr | Berger Varmint they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.