Load Specifications
Bullet Manufacturer:Barnes
Bullet Weight:105 gr
Bullet Diameter:0.243"
Bullet Length:<<locked>>
Caliber:.240 Weath. Mag. load data
Case Length (l3):2.5"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:64 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:8.5
Load data in caliber .240 Weath. Mag. with .243 | 105gr | Barnes Match Burner BT bullet and 166 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Norma MRP and Vihtavuori N560.
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 2700 | <<locked>> | 82% | 57,464 psi | 90% | 2969 fps | 99.3% |
| Accurate 2700 | <<locked>> | 82% | 57,653 psi | 90% | 2972 fps | 99.4% |
| Accurate 3100 | <<locked>> | 98% | 57,305 psi | 90% | 3028 fps | 99.9% |
| Accurate 3100 | <<locked>> | 98% | 57,450 psi | 90% | 3028 fps | 100% |
| Accurate 4064 | <<locked>> | 82% | 57,305 psi | 90% | 2946 fps | 100% |
| Accurate 4064 | <<locked>> | 82% | 57,493 psi | 90% | 2949 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 55,172 psi | 86% | 3015 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 55,027 psi | 86% | 3015 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 54,795 psi | 86% | 3117 fps | 97.9% |
| Accurate MAGPRO | <<locked>> | 96% | 55,709 psi | 87% | 3114 fps | 96.8% |
| Accurate MAGPRO | <<locked>> | 96% | 55,840 psi | 88% | 3120 fps | 96.8% |
| ADI AR 2208 | <<locked>> | 84% | 56,826 psi | 89% | 2982 fps | 100% |
| ADI AR 2208 | <<locked>> | 84% | 57,014 psi | 89% | 2982 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 55,796 psi | 87% | 3061 fps | 98.7% |
| ADI AR 2209 | <<locked>> | 94% | 55,941 psi | 88% | 3064 fps | 98.7% |
| ADI AR 2213 | <<locked>> | 98% | 57,232 psi | 90% | 3120 fps | 98% |
| ADI AR 2213 | <<locked>> | 98% | 57,363 psi | 90% | 3123 fps | 98% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 39,697 psi | 62% | 2825 fps | 97% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 39,798 psi | 62% | 2828 fps | 97.1% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 56,275 psi | 88% | 3064 fps | 98.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 54,302 psi | 85% | 2949 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 54,520 psi | 85% | 2953 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 55,869 psi | 88% | 3074 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 56,043 psi | 88% | 3074 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 57,130 psi | 90% | 3091 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 57,334 psi | 90% | 3094 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 55,405 psi | 87% | 3051 fps | 98.7% |
| Alliant Reloder-19 | <<locked>> | 94% | 55,550 psi | 87% | 3051 fps | 98.7% |
| Alliant Reloder-22 | <<locked>> | 98% | 56,811 psi | 89% | 3114 fps | 99% |
| Alliant Reloder-22 | <<locked>> | 98% | 56,956 psi | 89% | 3117 fps | 99% |
| Alliant Reloder-23 | <<locked>> | 98% | 54,201 psi | 85% | 3038 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 98% | 54,360 psi | 85% | 3041 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 49,835 psi | 78% | 3028 fps | 99.9% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 49,951 psi | 78% | 3031 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 94% | 54,433 psi | 85% | 3127 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 54,621 psi | 86% | 3130 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 55,883 psi | 88% | 3097 fps | 98.8% |
| Bofors RP15ᴾ | <<locked>> | 100% | 55,738 psi | 87% | 3097 fps | 98.8% |
| Bofors RP3 | <<locked>> | 82% | 55,419 psi | 87% | 2969 fps | 100% |
| Bofors RP3 | <<locked>> | 82% | 55,593 psi | 87% | 2972 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 45,788 psi | 72% | 2946 fps | 96.2% |
| Bofors RP30ᴾ | <<locked>> | 100% | 45,963 psi | 72% | 2949 fps | 96.3% |
| Bofors RP5 | <<locked>> | 98% | 56,811 psi | 89% | 3114 fps | 99% |
| Bofors RP5 | <<locked>> | 98% | 56,956 psi | 89% | 3117 fps | 99% |
| Bofors RP7 | <<locked>> | 86% | 54,592 psi | 86% | 2959 fps | 99.1% |
| Bofors RP7 | <<locked>> | 86% | 54,781 psi | 86% | 2963 fps | 99.2% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 49,240 psi | 77% | 2966 fps | 97.2% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 49,356 psi | 77% | 2972 fps | 97.3% |
| Hodgdon H380 | <<locked>> | 82% | 55,651 psi | 87% | 2989 fps | 100% |
| Hodgdon H380 | <<locked>> | 82% | 55,492 psi | 87% | 2989 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 57,116 psi | 90% | 3071 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 88% | 56,942 psi | 89% | 3068 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 86% | 56,202 psi | 88% | 3025 fps | 99% |
| Hodgdon H4350 | <<locked>> | 86% | 56,391 psi | 88% | 3028 fps | 99% |
| Hodgdon H4831 | <<locked>> | 96% | 57,392 psi | 90% | 3058 fps | 97.4% |
| Hodgdon H4831 | <<locked>> | 96% | 57,595 psi | 90% | 3064 fps | 97.5% |
| Hodgdon H4831 SC | <<locked>> | 96% | 56,333 psi | 88% | 3041 fps | 97.2% |
| Hodgdon H4831 SC | <<locked>> | 96% | 56,507 psi | 89% | 3045 fps | 97.3% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 56,202 psi | 88% | 2992 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 56,405 psi | 88% | 2995 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,892 psi | 77% | 3077 fps | 98.5% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 49,066 psi | 77% | 3084 fps | 98.6% |
| Hodgdon Superformance | <<locked>> | 86% | 53,476 psi | 84% | 3041 fps | 99.3% |
| Hodgdon Superformance | <<locked>> | 88% | 57,537 psi | 90% | 3107 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,869 psi | 58% | 1893 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,796 psi | 58% | 1893 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 56,260 psi | 88% | 2963 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 56,478 psi | 89% | 2966 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 56,028 psi | 88% | 2999 fps | 99.3% |
| IMR 4350 | <<locked>> | 90% | 55,854 psi | 88% | 2995 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 86% | 56,101 psi | 88% | 2986 fps | 99.5% |
| IMR 4451 Enduron | <<locked>> | 86% | 56,304 psi | 88% | 2992 fps | 99.6% |
| IMR 4831 | <<locked>> | 90% | 55,448 psi | 87% | 3005 fps | 100% |
| IMR 4831 | <<locked>> | 90% | 55,651 psi | 87% | 3009 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 54,955 psi | 86% | 2986 fps | 97.1% |
| IMR 4955 Enduron | <<locked>> | 94% | 55,100 psi | 86% | 2989 fps | 97.2% |
| IMR 7828 SSC | <<locked>> | 98% | 54,882 psi | 86% | 3094 fps | 97.7% |
| IMR 7828 SSC | <<locked>> | 98% | 55,085 psi | 86% | 3097 fps | 97.7% |
| Lovex S062 | <<locked>> | 82% | 56,695 psi | 89% | 2956 fps | 100% |
| Lovex S062 | <<locked>> | 82% | 56,521 psi | 89% | 2953 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 56,608 psi | 89% | 2986 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 56,434 psi | 88% | 2982 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 54,650 psi | 86% | 2979 fps | 99.6% |
| Lovex S070 | <<locked>> | 88% | 54,520 psi | 85% | 2976 fps | 99.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 50,937 psi | 80% | 2927 fps | 99.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 51,111 psi | 80% | 2930 fps | 99.6% |
| Norma 203B | <<locked>> | 82% | 57,276 psi | 90% | 3012 fps | 100% |
| Norma 203B | <<locked>> | 82% | 57,464 psi | 90% | 3015 fps | 100% |
| Norma 204 | <<locked>> | 90% | 56,724 psi | 89% | 3051 fps | 98.7% |
| Norma 204 | <<locked>> | 90% | 56,869 psi | 89% | 3054 fps | 98.7% |
| Norma MRP | <<locked>> | 96% | 56,666 psi | 89% | 3140 fps | 99.7% |
| Norma MRP | <<locked>> | 96% | 56,884 psi | 89% | 3143 fps | 99.7% |
| Norma URP | <<locked>> | 90% | 57,232 psi | 90% | 3051 fps | 100% |
| Norma URP | <<locked>> | 90% | 57,406 psi | 90% | 3054 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 55,709 psi | 87% | 3117 fps | 98.2% |
| Ramshot Grand | <<locked>> | 98% | 55,506 psi | 87% | 3114 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 90% | 55,956 psi | 88% | 3051 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 90% | 56,101 psi | 88% | 3054 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 53,650 psi | 84% | 3045 fps | 99.1% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 53,766 psi | 84% | 3048 fps | 99.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,507 psi | 59% | 1936 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,434 psi | 59% | 1936 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 55,448 psi | 87% | 2972 fps | 99.8% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 55,288 psi | 87% | 2972 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 56,507 psi | 89% | 3081 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 56,724 psi | 89% | 3084 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 55,172 psi | 86% | 3038 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 54,984 psi | 86% | 3035 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 57,334 psi | 90% | 3127 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 57,522 psi | 90% | 3127 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 49,356 psi | 77% | 3074 fps | 99.4% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 49,458 psi | 78% | 3081 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 84% | 55,593 psi | 87% | 2966 fps | 100% |
| Rottweil R 903 | <<locked>> | 84% | 55,796 psi | 87% | 2969 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 57,348 psi | 90% | 3031 fps | 98% |
| Rottweil R 904 | <<locked>> | 94% | 57,493 psi | 90% | 3035 fps | 98.1% |
| Rottweil R 905 | <<locked>> | 94% | 54,665 psi | 86% | 3035 fps | 98.7% |
| Rottweil R 905 | <<locked>> | 94% | 54,824 psi | 86% | 3038 fps | 98.7% |
| Rottweil R 907 | <<locked>> | 86% | 54,592 psi | 86% | 2959 fps | 99.1% |
| Rottweil R 907 | <<locked>> | 86% | 54,781 psi | 86% | 2963 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 88% | 56,608 psi | 89% | 2986 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 88% | 56,434 psi | 88% | 2982 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 56,695 psi | 89% | 2956 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 56,521 psi | 89% | 2953 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 54,650 psi | 86% | 2979 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 88% | 54,520 psi | 85% | 2976 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 57,116 psi | 90% | 3028 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 57,319 psi | 90% | 3031 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 55,883 psi | 88% | 2841 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 56,086 psi | 88% | 2844 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 56,086 psi | 88% | 2936 fps | 99.6% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 55,941 psi | 88% | 2936 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 54,215 psi | 85% | 3031 fps | 98.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 54,433 psi | 85% | 3035 fps | 98.6% |
| Somchem S355 | <<locked>> | 84% | 55,288 psi | 87% | 2959 fps | 100% |
| Somchem S355 | <<locked>> | 84% | 55,506 psi | 87% | 2963 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 55,506 psi | 87% | 2966 fps | 97% |
| Somchem S361 | <<locked>> | 92% | 55,695 psi | 87% | 2969 fps | 97.1% |
| Somchem S365 | <<locked>> | 92% | 57,319 psi | 90% | 3054 fps | 100% |
| Somchem S365 | <<locked>> | 92% | 57,493 psi | 90% | 3054 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 55,274 psi | 87% | 3012 fps | 99.3% |
| Somchem S385 | <<locked>> | 94% | 55,448 psi | 87% | 3015 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 86% | 56,550 psi | 89% | 2933 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 56,724 psi | 89% | 2936 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 55,651 psi | 87% | 2992 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 55,535 psi | 87% | 2989 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 54,839 psi | 86% | 2989 fps | 99% |
| Vihtavuori N165 | <<locked>> | 98% | 54,998 psi | 86% | 2992 fps | 99% |
| Vihtavuori N540 | <<locked>> | 82% | 57,421 psi | 90% | 2933 fps | 100% |
| Vihtavuori N540 | <<locked>> | 82% | 57,276 psi | 90% | 2930 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 54,824 psi | 86% | 2995 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 54,708 psi | 86% | 2995 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 56,666 psi | 89% | 3068 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 56,507 psi | 89% | 3068 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 56,681 psi | 89% | 3133 fps | 97.6% |
| Vihtavuori N560 | <<locked>> | 96% | 56,840 psi | 89% | 3136 fps | 97.6% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 52,286 psi | 82% | 3038 fps | 97% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 52,402 psi | 82% | 3038 fps | 97% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 55,259 psi | 87% | 2953 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 55,085 psi | 86% | 2949 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 57,116 psi | 90% | 3071 fps | 99.7% |
| Winchester 760 | <<locked>> | 88% | 57,319 psi | 90% | 3074 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 54,462 psi | 85% | 3169 fps | 100% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 54,723 psi | 86% | 3173 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 55,463 psi | 87% | 3005 fps | 98.6% |
| Winchester Supreme 780 | <<locked>> | 96% | 55,622 psi | 87% | 3009 fps | 98.7% |
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 2700 | <<locked>> | 80% | 53,780 psi | 84% | 2910 fps | 98.9% |
| Accurate 2700 | <<locked>> | 80% | 53,940 psi | 85% | 2910 fps | 98.9% |
| Accurate 3100 | <<locked>> | 82% | 33,127 psi | 52% | 2559 fps | 95.5% |
| Accurate 3100 | <<locked>> | 82% | 33,257 psi | 52% | 2562 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 53,911 psi | 84% | 2897 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 54,099 psi | 85% | 2900 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 41,858 psi | 66% | 2779 fps | 99.3% |
| Accurate 4350 | <<locked>> | 80% | 42,018 psi | 66% | 2782 fps | 99.3% |
| Accurate High Country | <<locked>> | 88% | 44,295 psi | 69% | 2913 fps | 95.3% |
| Accurate MAGPRO | <<locked>> | 94% | 51,880 psi | 81% | 3048 fps | 95.9% |
| Accurate MAGPRO | <<locked>> | 92% | 48,486 psi | 76% | 2982 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 50,270 psi | 79% | 2877 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 50,140 psi | 79% | 2874 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 42,931 psi | 67% | 2818 fps | 95.9% |
| ADI AR 2209 | <<locked>> | 84% | 40,161 psi | 63% | 2756 fps | 95% |
| ADI AR 2213 | <<locked>> | 92% | 46,891 psi | 73% | 2930 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 92% | 47,050 psi | 74% | 2933 fps | 95.7% |
| ADI AR 2225 | <<locked>> | 98% | 37,304 psi | 58% | 2762 fps | 96% |
| ADI AR 2225 | <<locked>> | 98% | 37,202 psi | 58% | 2759 fps | 96% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 40,625 psi | 64% | 2762 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 51,111 psi | 80% | 2900 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 51,285 psi | 80% | 2900 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,234 psi | 63% | 2785 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,364 psi | 63% | 2785 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 46,064 psi | 72% | 2910 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 46,253 psi | 72% | 2913 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 40,074 psi | 63% | 2749 fps | 95% |
| Alliant Reloder-19 | <<locked>> | 84% | 40,219 psi | 63% | 2756 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 88% | 40,683 psi | 64% | 2805 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 88% | 40,582 psi | 64% | 2805 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,834 psi | 47% | 2533 fps | 97.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,965 psi | 47% | 2536 fps | 97.9% |
| Alliant Reloder-25 | <<locked>> | 86% | 31,734 psi | 50% | 2602 fps | 95.4% |
| Alliant Reloder-25 | <<locked>> | 86% | 31,865 psi | 50% | 2608 fps | 95.5% |
| Alliant Reloder-26 | 44.9 gr | 80% | 32,126 psi | 50% | 2651 fps | 96.5% |
| Alliant Reloder-26 | 44.9 gr | 80% | 32,271 psi | 51% | 2654 fps | 96.6% |
| Bofors RP15 | <<locked>> | 90% | 40,147 psi | 63% | 2792 fps | 95% |
| Bofors RP15 | <<locked>> | 90% | 40,306 psi | 63% | 2799 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 52,025 psi | 82% | 2917 fps | 100% |
| Bofors RP3 | <<locked>> | 80% | 51,895 psi | 81% | 2917 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 42,917 psi | 67% | 2884 fps | 95.3% |
| Bofors RP30 | <<locked>> | 98% | 43,047 psi | 67% | 2887 fps | 95.4% |
| Bofors RP5 | <<locked>> | 88% | 40,683 psi | 64% | 2805 fps | 95.4% |
| Bofors RP5 | <<locked>> | 88% | 40,582 psi | 64% | 2805 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 45,107 psi | 71% | 2785 fps | 97.6% |
| Bofors RP7 | <<locked>> | 80% | 45,281 psi | 71% | 2789 fps | 97.6% |
| Hodgdon H1000 | <<locked>> | 96% | 42,931 psi | 67% | 2838 fps | 95.3% |
| Hodgdon H1000 | <<locked>> | 96% | 43,091 psi | 68% | 2841 fps | 95.4% |
| Hodgdon H380 | <<locked>> | 80% | 52,011 psi | 82% | 2930 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 80% | 52,185 psi | 82% | 2933 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 43,685 psi | 68% | 2825 fps | 97.8% |
| Hodgdon H414 | <<locked>> | 80% | 43,816 psi | 69% | 2831 fps | 97.8% |
| Hodgdon H4350 | <<locked>> | 80% | 46,485 psi | 73% | 2848 fps | 97.2% |
| Hodgdon H4350 | <<locked>> | 80% | 46,383 psi | 73% | 2848 fps | 97.2% |
| Hodgdon H4831 | <<locked>> | 92% | 50,183 psi | 79% | 2936 fps | 95.9% |
| Hodgdon H4831 | <<locked>> | 90% | 46,891 psi | 73% | 2874 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 92% | 49,226 psi | 77% | 2917 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 92% | 49,385 psi | 77% | 2923 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,782 psi | 59% | 2667 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,971 psi | 60% | 2674 fps | 99.7% |
| Hodgdon Retumbo | <<locked>> | 94% | 40,248 psi | 63% | 2877 fps | 95.8% |
| Hodgdon Retumbo | <<locked>> | 94% | 40,147 psi | 63% | 2874 fps | 95.8% |
| Hodgdon Superformance | <<locked>> | 80% | 42,656 psi | 67% | 2838 fps | 97.3% |
| Hodgdon Superformance | <<locked>> | 80% | 42,830 psi | 67% | 2841 fps | 97.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,630 psi | 43% | 1693 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,572 psi | 43% | 1693 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 52,910 psi | 83% | 2910 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 52,765 psi | 83% | 2910 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,785 psi | 64% | 2713 fps | 96.5% |
| IMR 4350 | <<locked>> | 80% | 40,712 psi | 64% | 2710 fps | 96.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,557 psi | 73% | 2818 fps | 98.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,717 psi | 73% | 2818 fps | 98.3% |
| IMR 4831 | <<locked>> | 80% | 39,929 psi | 63% | 2723 fps | 99.1% |
| IMR 4831 | <<locked>> | 80% | 40,089 psi | 63% | 2726 fps | 99.1% |
| IMR 4955 Enduron | <<locked>> | 90% | 48,689 psi | 76% | 2871 fps | 95.7% |
| IMR 4955 Enduron | <<locked>> | 90% | 48,544 psi | 76% | 2871 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 92% | 44,918 psi | 70% | 2900 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 92% | 44,802 psi | 70% | 2897 fps | 95.1% |
| Lovex S062 | <<locked>> | 80% | 53,316 psi | 84% | 2904 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 53,185 psi | 83% | 2904 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 44,135 psi | 69% | 2766 fps | 98.9% |
| Lovex S065 | <<locked>> | 80% | 44,324 psi | 69% | 2769 fps | 98.9% |
| Lovex S070 | <<locked>> | 80% | 42,293 psi | 66% | 2746 fps | 97.6% |
| Lovex S070 | <<locked>> | 80% | 42,453 psi | 67% | 2749 fps | 97.7% |
| Lovex S071 | <<locked>> | 86% | 32,460 psi | 51% | 2539 fps | 95.2% |
| Lovex S071 | <<locked>> | 86% | 32,590 psi | 51% | 2543 fps | 95.3% |
| Norma 203B | <<locked>> | 80% | 53,853 psi | 84% | 2959 fps | 100% |
| Norma 203B | <<locked>> | 80% | 54,070 psi | 85% | 2963 fps | 100% |
| Norma 204 | <<locked>> | 80% | 40,524 psi | 64% | 2743 fps | 95% |
| Norma 204 | <<locked>> | 82% | 43,381 psi | 68% | 2805 fps | 95.9% |
| Norma MRP | 45.8 gr | 84% | 37,173 psi | 58% | 2753 fps | 95.7% |
| Norma MRP | 45.8 gr | 84% | 37,275 psi | 58% | 2756 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 41,176 psi | 65% | 2766 fps | 99.1% |
| Norma URP | <<locked>> | 80% | 41,350 psi | 65% | 2769 fps | 99.2% |
| Ramshot Grand | <<locked>> | 92% | 44,657 psi | 70% | 2907 fps | 95.5% |
| Ramshot Grand | <<locked>> | 92% | 44,817 psi | 70% | 2913 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 40,234 psi | 63% | 2756 fps | 97.7% |
| Ramshot Hunter | <<locked>> | 80% | 40,161 psi | 63% | 2756 fps | 97.7% |
| Ramshot Magnum | <<locked>> | 92% | 39,871 psi | 62% | 2779 fps | 96% |
| Ramshot Magnum | <<locked>> | 90% | 37,217 psi | 58% | 2717 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,007 psi | 44% | 1729 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,963 psi | 44% | 1729 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,880 psi | 81% | 2913 fps | 99.5% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,764 psi | 81% | 2913 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,907 psi | 77% | 2963 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 49,066 psi | 77% | 2966 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,727 psi | 65% | 2795 fps | 99.1% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,858 psi | 66% | 2799 fps | 99.1% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 40,089 psi | 63% | 2805 fps | 98.7% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 40,248 psi | 63% | 2808 fps | 98.8% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 37,014 psi | 58% | 2785 fps | 95.7% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 37,130 psi | 58% | 2789 fps | 95.8% |
| Rottweil R 903 | <<locked>> | 80% | 48,718 psi | 76% | 2858 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 48,878 psi | 77% | 2861 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 44,440 psi | 70% | 2799 fps | 95.1% |
| Rottweil R 904 | <<locked>> | 86% | 44,570 psi | 70% | 2799 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 84% | 39,349 psi | 62% | 2736 fps | 95% |
| Rottweil R 905 | <<locked>> | 84% | 39,247 psi | 62% | 2733 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 45,107 psi | 71% | 2785 fps | 97.6% |
| Rottweil R 907 | <<locked>> | 80% | 45,281 psi | 71% | 2789 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,135 psi | 69% | 2766 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,324 psi | 69% | 2769 fps | 98.9% |
| Shooters World Precision | <<locked>> | 80% | 53,316 psi | 84% | 2904 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 53,185 psi | 83% | 2904 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 42,293 psi | 66% | 2746 fps | 97.6% |
| Shooters World SW4350 | <<locked>> | 80% | 42,453 psi | 67% | 2749 fps | 97.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 50,198 psi | 79% | 2917 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 50,111 psi | 79% | 2917 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,342 psi | 77% | 2746 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,501 psi | 78% | 2749 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,207 psi | 68% | 2710 fps | 97.7% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,381 psi | 68% | 2713 fps | 97.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 41,626 psi | 65% | 2789 fps | 95.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 41,785 psi | 65% | 2795 fps | 95.8% |
| Somchem S355 | <<locked>> | 80% | 48,892 psi | 77% | 2854 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 49,052 psi | 77% | 2861 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 48,675 psi | 76% | 2848 fps | 95.5% |
| Somchem S361 | <<locked>> | 88% | 48,501 psi | 76% | 2844 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 38,043 psi | 60% | 2726 fps | 100% |
| Somchem S365 | <<locked>> | 80% | 37,971 psi | 60% | 2723 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 37,318 psi | 58% | 2661 fps | 95.3% |
| Somchem S385 | <<locked>> | 82% | 37,434 psi | 59% | 2661 fps | 95.3% |
| Vihtavuori N150 | <<locked>> | 80% | 46,586 psi | 73% | 2779 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 46,789 psi | 73% | 2779 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,699 psi | 67% | 2766 fps | 99.3% |
| Vihtavuori N160 | <<locked>> | 80% | 42,873 psi | 67% | 2769 fps | 99.4% |
| Vihtavuori N165 | <<locked>> | 88% | 39,407 psi | 62% | 2700 fps | 95.6% |
| Vihtavuori N165 | <<locked>> | 88% | 39,305 psi | 62% | 2697 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 53,780 psi | 84% | 2881 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 53,954 psi | 85% | 2884 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 42,119 psi | 66% | 2766 fps | 99.1% |
| Vihtavuori N550 | <<locked>> | 80% | 42,279 psi | 66% | 2769 fps | 99.2% |
| Vihtavuori N555 | <<locked>> | 80% | 33,359 psi | 52% | 2615 fps | 97.9% |
| Vihtavuori N555 | <<locked>> | 80% | 33,257 psi | 52% | 2612 fps | 97.8% |
| Vihtavuori N560 | 49 gr | 90% | 46,209 psi | 72% | 2940 fps | 95.1% |
| Vihtavuori N560 | 49 gr | 90% | 46,079 psi | 72% | 2936 fps | 95% |
| Vihtavuori N565 | <<locked>> | 96% | 45,687 psi | 72% | 2910 fps | 95.2% |
| Vihtavuori N565 | <<locked>> | 96% | 45,803 psi | 72% | 2913 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,829 psi | 66% | 2733 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,698 psi | 65% | 2730 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,685 psi | 68% | 2825 fps | 97.8% |
| Winchester 760 | <<locked>> | 80% | 43,816 psi | 69% | 2831 fps | 97.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,498 psi | 42% | 2516 fps | 97.2% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,440 psi | 41% | 2513 fps | 97.2% |
| Winchester Supreme 780 | <<locked>> | 88% | 41,887 psi | 66% | 2759 fps | 95.7% |
| Winchester Supreme 780 | <<locked>> | 88% | 42,047 psi | 66% | 2762 fps | 95.7% |
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 166 powders for .240 Weath. Mag. loaded with the .243 | 105gr | Barnes Match Burner BT. Winchester StaBALL HD delivers the highest muzzle velocity at 3,173 fps; across all powders the maximum-charge window runs from 1,893 fps to 3,173 fps. ADI AR 2225 gives the best case fill at 100 %, and 166 of the 166 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 105.0 gr projectile in 0.243" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. ADI AR 2225, ADI AR 2225, Alliant Reloder-25 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, Norma MRP, Vihtavuori N560 rank at the top here: for .240 Weath. Mag. with the .243 | 105gr | Barnes Match Burner BT 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.