Load Specifications
Load data in caliber .240 Weath. Mag. with .243 | 95gr | Barnes X S bullet and 78 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Accurate High Country and Norma MRP.
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 3100 | <<locked>> | 96% | 54,433 psi | 85% | 3100 fps | 99.5% |
| Accurate 4350 | <<locked>> | 88% | 56,014 psi | 88% | 3153 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 54,810 psi | 86% | 3235 fps | 96.9% |
| ADI AR 2208 | <<locked>> | 84% | 57,116 psi | 90% | 3114 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 55,854 psi | 88% | 3179 fps | 97.9% |
| ADI AR 2213 | <<locked>> | 98% | 57,406 psi | 90% | 3238 fps | 97.1% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 56,275 psi | 88% | 3182 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 55,071 psi | 86% | 3087 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 55,709 psi | 87% | 3199 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 57,276 psi | 90% | 3225 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 55,564 psi | 87% | 3173 fps | 98% |
| Alliant Reloder-22 | <<locked>> | 98% | 57,130 psi | 90% | 3241 fps | 98.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 57,725 psi | 90% | 3222 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 50,401 psi | 79% | 3153 fps | 99.7% |
| Alliant Reloder-26 | <<locked>> | 94% | 54,346 psi | 85% | 3255 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 55,970 psi | 88% | 3219 fps | 98.1% |
| Bofors RP3 | <<locked>> | 82% | 56,449 psi | 88% | 3110 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 57,130 psi | 90% | 3241 fps | 98.4% |
| Bofors RP7 | <<locked>> | 86% | 55,187 psi | 86% | 3087 fps | 98.6% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 49,748 psi | 78% | 3081 fps | 96.1% |
| Hodgdon H380 | <<locked>> | 82% | 56,014 psi | 88% | 3117 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 88% | 57,174 psi | 90% | 3196 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 86% | 56,275 psi | 88% | 3143 fps | 98.3% |
| Hodgdon H4831 | <<locked>> | 96% | 57,305 psi | 90% | 3173 fps | 96.4% |
| Hodgdon H4831 SC | <<locked>> | 96% | 56,289 psi | 88% | 3156 fps | 96.2% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 56,289 psi | 88% | 3120 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 49,182 psi | 77% | 3192 fps | 97.6% |
| Hodgdon Superformance | <<locked>> | 88% | 57,566 psi | 90% | 3232 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,057 psi | 58% | 1988 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 56,434 psi | 88% | 3091 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 56,086 psi | 88% | 3117 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 86% | 56,318 psi | 88% | 3110 fps | 99.1% |
| IMR 4831 | <<locked>> | 90% | 55,927 psi | 88% | 3133 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 55,201 psi | 87% | 3104 fps | 96.2% |
| IMR 7828 SSC | <<locked>> | 98% | 54,868 psi | 86% | 3209 fps | 96.7% |
| Lovex S062 | <<locked>> | 82% | 57,217 psi | 90% | 3091 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 57,232 psi | 90% | 3117 fps | 99.8% |
| Lovex S070 | <<locked>> | 88% | 55,361 psi | 87% | 3104 fps | 99.1% |
| Lovex S071ᴾ | <<locked>> | 100% | 52,112 psi | 82% | 3061 fps | 99.2% |
| Norma 204 | <<locked>> | 90% | 56,898 psi | 89% | 3173 fps | 98% |
| Norma MRP | <<locked>> | 96% | 56,608 psi | 89% | 3264 fps | 99.3% |
| Norma URP | <<locked>> | 90% | 57,421 psi | 90% | 3182 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 55,506 psi | 87% | 3228 fps | 97.2% |
| Ramshot Hunter | <<locked>> | 90% | 56,231 psi | 88% | 3179 fps | 99.6% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 53,896 psi | 84% | 3163 fps | 98.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,753 psi | 59% | 2034 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 55,593 psi | 87% | 3097 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 56,304 psi | 88% | 3212 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 55,448 psi | 87% | 3166 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 57,203 psi | 90% | 3251 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 49,763 psi | 78% | 3192 fps | 98.7% |
| Rottweil R 903 | <<locked>> | 84% | 56,608 psi | 89% | 3107 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 57,493 psi | 90% | 3153 fps | 97.2% |
| Rottweil R 905 | <<locked>> | 94% | 55,042 psi | 86% | 3159 fps | 98% |
| Rottweil R 907 | <<locked>> | 86% | 55,187 psi | 86% | 3087 fps | 98.6% |
| Shooters World Long Rifle | <<locked>> | 88% | 57,232 psi | 90% | 3117 fps | 99.8% |
| Shooters World Precision | <<locked>> | 82% | 57,217 psi | 90% | 3091 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 55,361 psi | 87% | 3104 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 57,334 psi | 90% | 3159 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 56,086 psi | 88% | 2969 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 56,637 psi | 89% | 3061 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 54,578 psi | 86% | 3153 fps | 97.9% |
| Somchem S355 | <<locked>> | 84% | 56,101 psi | 88% | 3097 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 55,811 psi | 87% | 3081 fps | 96% |
| Somchem S365 | <<locked>> | 92% | 57,276 psi | 90% | 3186 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 55,883 psi | 88% | 3136 fps | 98.7% |
| Vihtavuori N150 | <<locked>> | 86% | 57,087 psi | 89% | 3064 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 55,883 psi | 88% | 3120 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 55,042 psi | 86% | 3104 fps | 98.3% |
| Vihtavuori N540 | <<locked>> | 82% | 57,609 psi | 90% | 3061 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 55,216 psi | 87% | 3123 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 96% | 57,043 psi | 89% | 3199 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 56,463 psi | 88% | 3248 fps | 96.6% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 52,968 psi | 83% | 3163 fps | 96.1% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 55,056 psi | 86% | 3074 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 57,508 psi | 90% | 3199 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 54,143 psi | 85% | 3304 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 55,593 psi | 87% | 3123 fps | 97.9% |
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 3100 | <<locked>> | 82% | 34,998 psi | 55% | 2697 fps | 95.1% |
| Accurate 4350 | <<locked>> | 80% | 43,192 psi | 68% | 2913 fps | 98.9% |
| Accurate High Country | 49.8 gr | 90% | 47,979 psi | 75% | 3104 fps | 95.2% |
| ADI AR 2208 | <<locked>> | 80% | 50,604 psi | 79% | 3002 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 46,137 psi | 72% | 2992 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 94% | 50,285 psi | 79% | 3104 fps | 95.4% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 43,685 psi | 68% | 2936 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 51,677 psi | 81% | 3031 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,799 psi | 64% | 2907 fps | 98.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 46,543 psi | 73% | 3045 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 43,279 psi | 68% | 2930 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 90% | 44,179 psi | 69% | 2992 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 31,125 psi | 49% | 2664 fps | 97.4% |
| Alliant Reloder-25 | <<locked>> | 88% | 34,911 psi | 55% | 2785 fps | 95.6% |
| Alliant Reloder-26 | 45.6 gr | 80% | 33,504 psi | 53% | 2789 fps | 95.9% |
| Bofors RP15 | <<locked>> | 92% | 43,642 psi | 68% | 2976 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 52,953 psi | 83% | 3054 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 44,179 psi | 69% | 2992 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 46,195 psi | 72% | 2917 fps | 96.9% |
| Hodgdon H1000 | <<locked>> | 98% | 46,572 psi | 73% | 3012 fps | 95.1% |
| Hodgdon H380 | <<locked>> | 80% | 52,866 psi | 83% | 3064 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 80% | 44,222 psi | 69% | 2946 fps | 97% |
| Hodgdon H4350 | <<locked>> | 80% | 46,833 psi | 73% | 2966 fps | 96.3% |
| Hodgdon H4831 | <<locked>> | 94% | 53,650 psi | 84% | 3110 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 94% | 52,678 psi | 83% | 3091 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 38,914 psi | 61% | 2799 fps | 99.4% |
| Hodgdon Retumbo | <<locked>> | 96% | 43,482 psi | 68% | 3058 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 43,439 psi | 68% | 2963 fps | 96.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,789 psi | 44% | 1781 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 53,258 psi | 83% | 3038 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 41,423 psi | 65% | 2831 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,920 psi | 74% | 2933 fps | 97.5% |
| IMR 4831 | <<locked>> | 80% | 41,205 psi | 65% | 2858 fps | 98.6% |
| IMR 4955 Enduron | <<locked>> | 92% | 51,866 psi | 81% | 3041 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 96% | 51,343 psi | 80% | 3136 fps | 95.8% |
| Lovex S062 | <<locked>> | 80% | 54,027 psi | 85% | 3041 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 45,092 psi | 71% | 2890 fps | 98.3% |
| Lovex S070 | <<locked>> | 80% | 43,584 psi | 68% | 2877 fps | 97% |
| Lovex S071 | <<locked>> | 88% | 36,245 psi | 57% | 2730 fps | 95.6% |
| Norma 204 | <<locked>> | 84% | 46,804 psi | 73% | 2986 fps | 95.8% |
| Norma MRP | 47.6 gr | 86% | 40,625 psi | 64% | 2943 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 42,221 psi | 66% | 2897 fps | 98.7% |
| Ramshot Grand | <<locked>> | 94% | 48,428 psi | 76% | 3091 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 40,872 psi | 64% | 2877 fps | 97% |
| Ramshot Magnum | <<locked>> | 92% | 40,770 psi | 64% | 2897 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,456 psi | 45% | 1824 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 52,243 psi | 82% | 3035 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 49,197 psi | 77% | 3094 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 42,772 psi | 67% | 2930 fps | 98.7% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 40,872 psi | 64% | 2927 fps | 98.1% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 40,727 psi | 64% | 2979 fps | 95.9% |
| Rottweil R 903 | <<locked>> | 80% | 50,067 psi | 78% | 2999 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 50,879 psi | 80% | 3031 fps | 95.8% |
| Rottweil R 905 | <<locked>> | 86% | 42,772 psi | 67% | 2917 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 46,195 psi | 72% | 2917 fps | 96.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 45,092 psi | 71% | 2890 fps | 98.3% |
| Shooters World Precision | <<locked>> | 80% | 54,027 psi | 85% | 3041 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 43,584 psi | 68% | 2877 fps | 97% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 50,473 psi | 79% | 3045 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,864 psi | 78% | 2877 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,179 psi | 69% | 2831 fps | 97.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 45,005 psi | 71% | 2969 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 49,748 psi | 78% | 2989 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 52,431 psi | 82% | 3022 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 38,899 psi | 61% | 2854 fps | 99.9% |
| Somchem S385 | <<locked>> | 84% | 40,886 psi | 64% | 2841 fps | 95.3% |
| Vihtavuori N150 | <<locked>> | 80% | 47,645 psi | 75% | 2913 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 43,352 psi | 68% | 2887 fps | 98.9% |
| Vihtavuori N165 | <<locked>> | 90% | 42,670 psi | 67% | 2874 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 54,520 psi | 85% | 3015 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 43,221 psi | 68% | 2897 fps | 98.7% |
| Vihtavuori N555 | <<locked>> | 80% | 34,766 psi | 54% | 2749 fps | 97.4% |
| Vihtavuori N560 | <<locked>> | 94% | 52,895 psi | 83% | 3182 fps | 95.7% |
| Vihtavuori N565 | <<locked>> | 98% | 49,617 psi | 78% | 3097 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 42,482 psi | 67% | 2854 fps | 99.9% |
| Winchester 760 | <<locked>> | 80% | 44,498 psi | 70% | 2953 fps | 97.1% |
| Winchester StaBALL HD | <<locked>> | 80% | 27,963 psi | 44% | 2651 fps | 96.7% |
| Winchester Supreme 780 | <<locked>> | 90% | 45,440 psi | 71% | 2936 fps | 95.6% |
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 78 powders for .240 Weath. Mag. loaded with the .243 | 95gr | Barnes X S. Winchester StaBALL HD delivers the highest muzzle velocity at 3,304 fps; across all powders the maximum-charge window runs from 1,988 fps to 3,304 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 78 of the 78 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 95.0 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-25, Bofors RP15 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, Accurate High Country, Norma MRP rank at the top here: for .240 Weath. Mag. with the .243 | 95gr | Barnes X S 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.