Load Specifications
Load data in caliber .243 Ackley Improved with .243 | 80gr | Hasler Hunting bullet and 62 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-17 and Alliant Reloder-16.
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.
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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 84% | 49,487 psi | 90% | 3133 fps | 100% |
| Accurate 4064 | <<locked>> | 86% | 49,603 psi | 90% | 3179 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 49,255 psi | 89% | 3241 fps | 98.4% |
| ADI AR 2206H | <<locked>> | 82% | 49,676 psi | 90% | 3202 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 86% | 47,761 psi | 86% | 3143 fps | 98.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 49,182 psi | 89% | 3314 fps | 98.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 47,645 psi | 86% | 3169 fps | 99.5% |
| Alliant Reloder-15 | <<locked>> | 84% | 48,298 psi | 87% | 3192 fps | 98.7% |
| Alliant Reloder-16 | <<locked>> | 94% | 47,732 psi | 86% | 3255 fps | 98.4% |
| Alliant Reloder-17 | <<locked>> | 90% | 48,153 psi | 87% | 3284 fps | 99.6% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,582 psi | 75% | 3130 fps | 98.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 46,978 psi | 85% | 3314 fps | 97.8% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 49,385 psi | 89% | 3205 fps | 98.5% |
| Bofors RP3 | <<locked>> | 86% | 48,211 psi | 87% | 3182 fps | 99.6% |
| Hodgdon H380 | <<locked>> | 86% | 48,849 psi | 88% | 3189 fps | 97.8% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 47,268 psi | 86% | 3179 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 49,458 psi | 90% | 3241 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,389 psi | 64% | 2080 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 48,196 psi | 87% | 3159 fps | 99.3% |
| IMR 4064 | <<locked>> | 84% | 47,268 psi | 86% | 3127 fps | 98.6% |
| IMR 4166 Enduron | <<locked>> | 84% | 49,879 psi | 90% | 3150 fps | 95.8% |
| IMR 4831 | <<locked>> | 94% | 47,137 psi | 85% | 3182 fps | 98.1% |
| IMR 4895 | <<locked>> | 84% | 49,487 psi | 90% | 3225 fps | 99.3% |
| Lovex D073.6 | <<locked>> | 82% | 49,327 psi | 89% | 3179 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 49,182 psi | 89% | 3127 fps | 99.2% |
| Lovex S062 | <<locked>> | 84% | 47,282 psi | 86% | 3130 fps | 99.6% |
| Lovex S065 | <<locked>> | 92% | 49,661 psi | 90% | 3173 fps | 97.2% |
| Norma 201 | <<locked>> | 82% | 48,457 psi | 88% | 3146 fps | 99.7% |
| Norma 202 | <<locked>> | 82% | 49,168 psi | 89% | 3156 fps | 100% |
| Norma 203B | <<locked>> | 84% | 47,601 psi | 86% | 3179 fps | 99% |
| Norma URP | <<locked>> | 94% | 48,878 psi | 88% | 3238 fps | 98.2% |
| Ramshot Big Game | <<locked>> | 84% | 47,688 psi | 86% | 3192 fps | 98.9% |
| Ramshot Hunter | <<locked>> | 94% | 47,645 psi | 86% | 3219 fps | 96.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,143 psi | 65% | 2136 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 49,269 psi | 89% | 3166 fps | 96.4% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 48,138 psi | 87% | 3251 fps | 98.6% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 47,834 psi | 87% | 3294 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 49,240 psi | 89% | 3264 fps | 98.2% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 48,791 psi | 88% | 3287 fps | 97.7% |
| Rottweil R 902 | <<locked>> | 84% | 49,124 psi | 89% | 3150 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 88% | 48,037 psi | 87% | 3173 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 92% | 49,661 psi | 90% | 3173 fps | 97.2% |
| Shooters World Match Rifle | <<locked>> | 82% | 49,327 psi | 89% | 3179 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 47,282 psi | 86% | 3130 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 49,487 psi | 90% | 3235 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 48,298 psi | 87% | 3166 fps | 99.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 49,966 psi | 90% | 3097 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 47,297 psi | 86% | 3041 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 49,792 psi | 90% | 3120 fps | 95.9% |
| Somchem S335 | <<locked>> | 82% | 49,313 psi | 89% | 3087 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 48,689 psi | 88% | 3179 fps | 99.4% |
| Somchem S365 | <<locked>> | 96% | 47,050 psi | 85% | 3245 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 84% | 48,979 psi | 89% | 3127 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 49,516 psi | 90% | 3133 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 49,893 psi | 90% | 3159 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 47,718 psi | 86% | 3176 fps | 97.9% |
| Vihtavuori N540 | <<locked>> | 84% | 47,892 psi | 87% | 3120 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 46,862 psi | 85% | 3169 fps | 97.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 45,934 psi | 83% | 3222 fps | 98.4% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 47,630 psi | 86% | 3146 fps | 99.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,391 psi | 68% | 3123 fps | 98.3% |
| Winchester StaBALL Match | <<locked>> | 82% | 47,819 psi | 87% | 3169 fps | 99.4% |
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% | 43,236 psi | 78% | 3022 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 40,886 psi | 74% | 3009 fps | 99.9% |
| Accurate 4350 | <<locked>> | 86% | 37,246 psi | 67% | 2979 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 46,470 psi | 84% | 3140 fps | 98.8% |
| ADI AR 2208 | <<locked>> | 80% | 39,508 psi | 71% | 2963 fps | 96.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 42,525 psi | 77% | 3166 fps | 97.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,349 psi | 71% | 2989 fps | 98.1% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,134 psi | 76% | 3058 fps | 97.4% |
| Alliant Reloder-16 | 40.1 gr | 86% | 36,883 psi | 67% | 2989 fps | 95.1% |
| Alliant Reloder-17 | 40.2 gr | 80% | 34,098 psi | 62% | 2936 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 94% | 34,389 psi | 62% | 2936 fps | 96% |
| Alliant Reloder-26 | <<locked>> | 96% | 40,756 psi | 74% | 3166 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,209 psi | 84% | 3140 fps | 97.9% |
| Bofors RP3 | <<locked>> | 80% | 39,320 psi | 71% | 2992 fps | 98.2% |
| Hodgdon H380 | <<locked>> | 80% | 40,030 psi | 72% | 2992 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 31,821 psi | 58% | 2808 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,091 psi | 78% | 3114 fps | 98.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,397 psi | 48% | 1867 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,049 psi | 82% | 3097 fps | 98.9% |
| IMR 4064 | <<locked>> | 80% | 41,495 psi | 75% | 3005 fps | 97.4% |
| IMR 4166 Enduron | <<locked>> | 82% | 47,007 psi | 85% | 3091 fps | 95.1% |
| IMR 4831 | <<locked>> | 88% | 38,450 psi | 70% | 2992 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 43,163 psi | 78% | 3094 fps | 98.2% |
| Lovex D073.6 | <<locked>> | 80% | 46,064 psi | 83% | 3120 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,325 psi | 84% | 3071 fps | 98.8% |
| Lovex S062 | <<locked>> | 80% | 41,524 psi | 75% | 3009 fps | 98.9% |
| Lovex S065 | <<locked>> | 88% | 44,092 psi | 80% | 3058 fps | 95.8% |
| Norma 201 | <<locked>> | 80% | 45,556 psi | 82% | 3087 fps | 99.4% |
| Norma 202 | <<locked>> | 80% | 45,934 psi | 83% | 3097 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,524 psi | 75% | 3045 fps | 97.8% |
| Norma URP | <<locked>> | 86% | 37,434 psi | 68% | 2982 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 80% | 41,307 psi | 75% | 3058 fps | 97.6% |
| Ramshot Hunter | <<locked>> | 92% | 44,512 psi | 81% | 3150 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,876 psi | 49% | 1913 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 46,122 psi | 83% | 3104 fps | 95.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 44,831 psi | 81% | 3182 fps | 98% |
| ReloadSwiss RS 60 | 40.2 gr | 80% | 36,318 psi | 66% | 3018 fps | 99% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 39,769 psi | 72% | 3061 fps | 95.7% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 42,279 psi | 77% | 3140 fps | 95.8% |
| Rottweil R 902 | <<locked>> | 80% | 43,497 psi | 79% | 3035 fps | 99.1% |
| Rottweil R 903 | <<locked>> | 80% | 36,796 psi | 67% | 2927 fps | 97.2% |
| Shooters World Long Rifle | <<locked>> | 88% | 44,092 psi | 80% | 3058 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,064 psi | 83% | 3120 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,524 psi | 75% | 3009 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,869 psi | 69% | 2979 fps | 96.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,150 psi | 82% | 3100 fps | 98.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,905 psi | 85% | 3041 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,146 psi | 71% | 2881 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 46,499 psi | 84% | 3054 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 46,470 psi | 84% | 3038 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 37,550 psi | 68% | 2933 fps | 97.2% |
| Somchem S365 | <<locked>> | 82% | 29,298 psi | 53% | 2789 fps | 95.3% |
| Vihtavuori N135 | <<locked>> | 80% | 43,105 psi | 78% | 3018 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,511 psi | 79% | 3022 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,723 psi | 65% | 2858 fps | 98% |
| Vihtavuori N160 | <<locked>> | 86% | 38,957 psi | 70% | 2982 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 42,163 psi | 76% | 3005 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 38,450 psi | 70% | 2982 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 92% | 34,911 psi | 63% | 2959 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,865 psi | 58% | 2766 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 96% | 32,663 psi | 59% | 2963 fps | 95.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 44,715 psi | 81% | 3104 fps | 98.9% |
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 62 powders for .243 Ackley Improved loaded with the .243 | 80gr | Hasler Hunting. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,314 fps; across all powders the maximum-charge window runs from 2,080 fps to 3,314 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 62 of the 62 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (381 MPa), the top charges use 64–90 %, leaving at least 10 % headroom. The 80.0 gr projectile in 0.243" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-26, Hodgdon TrailBoss 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. ReloadSwiss RS 60, Alliant Reloder-17, Alliant Reloder-16 rank at the top here: for .243 Ackley Improved with the .243 | 80gr | Hasler Hunting 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.