Load Specifications
Load data in caliber .240 Weath. Mag. with .243 | 85gr | Barnes X BT 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, Alliant Reloder-16 and ReloadSwiss RS 70.
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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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% | 54,781 psi | 86% | 3182 fps | 97.5% |
| Accurate 3100 | <<locked>> | 98% | 53,998 psi | 85% | 3235 fps | 98.8% |
| Accurate 4064 | <<locked>> | 82% | 55,463 psi | 87% | 3205 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 55,753 psi | 87% | 3301 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 86% | 57,348 psi | 90% | 3271 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 55,941 psi | 88% | 3327 fps | 96.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 56,855 psi | 89% | 3406 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 55,912 psi | 88% | 3317 fps | 97% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 55,085 psi | 86% | 3245 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 55,332 psi | 87% | 3268 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 92% | 55,492 psi | 87% | 3353 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 88% | 56,724 psi | 89% | 3379 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 55,172 psi | 86% | 3310 fps | 96.9% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 56,579 psi | 89% | 3376 fps | 97.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 53,447 psi | 84% | 3310 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 46,905 psi | 74% | 3219 fps | 98.4% |
| Alliant Reloder-26 | <<locked>> | 96% | 53,693 psi | 84% | 3392 fps | 99.7% |
| Bofors RP15ᴾ | <<locked>> | 100% | 51,909 psi | 81% | 3287 fps | 96.1% |
| Bofors RP3 | <<locked>> | 84% | 56,623 psi | 89% | 3271 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 56,579 psi | 89% | 3376 fps | 97.3% |
| Bofors RP7 | <<locked>> | 88% | 55,593 psi | 87% | 3238 fps | 97.8% |
| Hodgdon H380 | <<locked>> | 84% | 56,637 psi | 89% | 3281 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 90% | 57,217 psi | 90% | 3343 fps | 98.6% |
| Hodgdon H4350 | <<locked>> | 88% | 56,376 psi | 88% | 3291 fps | 97.3% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 56,043 psi | 88% | 3274 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 57,479 psi | 90% | 3317 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 57,566 psi | 90% | 3379 fps | 98.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,811 psi | 58% | 2100 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 56,768 psi | 89% | 3251 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 55,753 psi | 87% | 3225 fps | 98.3% |
| IMR 4350 | <<locked>> | 92% | 56,057 psi | 88% | 3261 fps | 98% |
| IMR 4451 Enduron | <<locked>> | 88% | 56,724 psi | 89% | 3264 fps | 98.4% |
| IMR 4831 | <<locked>> | 92% | 55,970 psi | 88% | 3287 fps | 99.8% |
| IMR 4895 | <<locked>> | 82% | 56,681 psi | 89% | 3301 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 57,421 psi | 90% | 3251 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 57,421 psi | 90% | 3268 fps | 99.4% |
| Lovex S070 | <<locked>> | 90% | 55,405 psi | 87% | 3255 fps | 98.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 48,443 psi | 76% | 3133 fps | 97.9% |
| Norma 203B | <<locked>> | 82% | 54,679 psi | 86% | 3255 fps | 100% |
| Norma 204 | <<locked>> | 92% | 56,985 psi | 89% | 3317 fps | 97% |
| Norma MRP | <<locked>> | 98% | 56,159 psi | 88% | 3406 fps | 98.5% |
| Norma URP | <<locked>> | 92% | 57,232 psi | 90% | 3330 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 82% | 55,288 psi | 87% | 3274 fps | 100% |
| Ramshot Hunter | <<locked>> | 92% | 56,101 psi | 88% | 3327 fps | 99% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 49,995 psi | 78% | 3225 fps | 96.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,420 psi | 59% | 2146 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 56,173 psi | 88% | 3251 fps | 98.8% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 56,217 psi | 88% | 3376 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 55,187 psi | 86% | 3314 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 56,971 psi | 89% | 3399 fps | 99.8% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 46,296 psi | 73% | 3238 fps | 96.5% |
| Rottweil R 902 | <<locked>> | 82% | 56,217 psi | 88% | 3215 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 56,405 psi | 88% | 3261 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 57,493 psi | 90% | 3294 fps | 96.1% |
| Rottweil R 905 | <<locked>> | 96% | 54,578 psi | 86% | 3294 fps | 96.9% |
| Rottweil R 907 | <<locked>> | 88% | 55,593 psi | 87% | 3238 fps | 97.8% |
| Shooters World Long Rifle | <<locked>> | 90% | 57,421 psi | 90% | 3268 fps | 99.4% |
| Shooters World Precision | <<locked>> | 84% | 57,421 psi | 90% | 3251 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 55,405 psi | 87% | 3255 fps | 98.4% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 57,653 psi | 90% | 3320 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 56,550 psi | 89% | 3133 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 56,956 psi | 89% | 3209 fps | 98.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 54,099 psi | 85% | 3287 fps | 96.8% |
| Somchem S355 | <<locked>> | 86% | 56,101 psi | 88% | 3255 fps | 100% |
| Somchem S365 | <<locked>> | 94% | 56,942 psi | 89% | 3343 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 55,724 psi | 87% | 3274 fps | 97.9% |
| Vihtavuori N135 | <<locked>> | 82% | 56,420 psi | 88% | 3176 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 56,318 psi | 88% | 3182 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 57,363 psi | 90% | 3225 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 55,796 psi | 87% | 3268 fps | 99.8% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 54,795 psi | 86% | 3241 fps | 97.4% |
| Vihtavuori N540 | <<locked>> | 82% | 54,926 psi | 86% | 3179 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 55,347 psi | 87% | 3274 fps | 99.7% |
| Vihtavuori N555 | <<locked>> | 98% | 56,521 psi | 89% | 3350 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 55,317 psi | 87% | 3225 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 57,217 psi | 90% | 3343 fps | 98.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 49,124 psi | 77% | 3379 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 55,390 psi | 87% | 3258 fps | 96.8% |
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% | 51,488 psi | 81% | 3120 fps | 96.8% |
| Accurate 3100 | <<locked>> | 88% | 39,189 psi | 61% | 2933 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 52,373 psi | 82% | 3153 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 40,248 psi | 63% | 2989 fps | 97.4% |
| ADI AR 2208 | <<locked>> | 80% | 48,080 psi | 75% | 3100 fps | 99.3% |
| ADI AR 2209 | <<locked>> | 92% | 49,153 psi | 77% | 3192 fps | 95.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 52,881 psi | 83% | 3333 fps | 99.8% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 49,443 psi | 77% | 3196 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 48,820 psi | 77% | 3133 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 51,967 psi | 81% | 3209 fps | 99.8% |
| Alliant Reloder-16 | 42 gr | 80% | 38,334 psi | 60% | 2982 fps | 97.2% |
| Alliant Reloder-17 | <<locked>> | 80% | 43,381 psi | 68% | 3127 fps | 99.6% |
| Alliant Reloder-19 | <<locked>> | 92% | 48,863 psi | 77% | 3186 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 96% | 49,617 psi | 78% | 3245 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 82% | 30,821 psi | 48% | 2776 fps | 95.8% |
| Alliant Reloder-25 | <<locked>> | 94% | 39,088 psi | 61% | 3025 fps | 95.9% |
| Alliant Reloder-26 | 48.7 gr | 84% | 35,549 psi | 56% | 2972 fps | 95.3% |
| Bofors RP15 | <<locked>> | 98% | 48,646 psi | 76% | 3222 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 49,850 psi | 78% | 3153 fps | 100% |
| Bofors RP5 | <<locked>> | 96% | 49,617 psi | 78% | 3245 fps | 95.7% |
| Bofors RP7 | <<locked>> | 82% | 46,369 psi | 73% | 3054 fps | 95.8% |
| Hodgdon H380 | <<locked>> | 80% | 49,908 psi | 78% | 3156 fps | 98.9% |
| Hodgdon H414 | <<locked>> | 82% | 44,135 psi | 69% | 3084 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 82% | 47,036 psi | 74% | 3107 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 36,100 psi | 57% | 2871 fps | 98% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 53,635 psi | 84% | 3255 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 43,410 psi | 68% | 3094 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,485 psi | 43% | 1877 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 50,546 psi | 79% | 3143 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 80% | 52,431 psi | 82% | 3163 fps | 97.8% |
| IMR 4350 | <<locked>> | 84% | 44,005 psi | 69% | 3022 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,570 psi | 70% | 3022 fps | 95.8% |
| IMR 4831 | <<locked>> | 80% | 38,348 psi | 60% | 2930 fps | 97% |
| IMR 4895 | <<locked>> | 80% | 53,243 psi | 83% | 3238 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 51,024 psi | 80% | 3143 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 42,757 psi | 67% | 2979 fps | 96.8% |
| Lovex S070 | <<locked>> | 80% | 40,915 psi | 64% | 2949 fps | 95% |
| Lovex S071 | <<locked>> | 94% | 40,350 psi | 63% | 2963 fps | 95.7% |
| Norma 203B | <<locked>> | 80% | 51,358 psi | 80% | 3192 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 50,082 psi | 78% | 3189 fps | 95.4% |
| Norma MRP | <<locked>> | 90% | 43,047 psi | 67% | 3133 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 39,320 psi | 62% | 2969 fps | 97% |
| Ramshot Big Game | <<locked>> | 80% | 51,605 psi | 81% | 3209 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 82% | 40,654 psi | 64% | 3009 fps | 95.7% |
| Ramshot Magnum | <<locked>> | 98% | 46,485 psi | 73% | 3146 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,108 psi | 44% | 1923 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 49,647 psi | 78% | 3130 fps | 97.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 45,876 psi | 72% | 3189 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 39,711 psi | 62% | 2999 fps | 96.9% |
| ReloadSwiss RS 70 | 45.9 gr | 80% | 38,174 psi | 60% | 2989 fps | 95.9% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 43,134 psi | 68% | 3156 fps | 95.2% |
| Rottweil R 902 | <<locked>> | 80% | 53,127 psi | 83% | 3163 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 46,847 psi | 73% | 3091 fps | 99.8% |
| Rottweil R 904 | <<locked>> | 94% | 53,911 psi | 84% | 3228 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 92% | 48,109 psi | 75% | 3169 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 82% | 46,369 psi | 73% | 3054 fps | 95.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,757 psi | 67% | 2979 fps | 96.8% |
| Shooters World Precision | <<locked>> | 80% | 51,024 psi | 80% | 3143 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 40,915 psi | 64% | 2949 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 47,427 psi | 74% | 3136 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 47,456 psi | 74% | 2986 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,858 psi | 66% | 2913 fps | 95.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 47,674 psi | 75% | 3163 fps | 95.1% |
| Somchem S355 | <<locked>> | 80% | 47,065 psi | 74% | 3087 fps | 99.7% |
| Somchem S365 | <<locked>> | 80% | 36,100 psi | 57% | 2930 fps | 99.1% |
| Somchem S385 | <<locked>> | 90% | 46,079 psi | 72% | 3091 fps | 95.7% |
| Vihtavuori N135 | <<locked>> | 80% | 53,185 psi | 83% | 3123 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 52,924 psi | 83% | 3130 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 44,759 psi | 70% | 3005 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 40,683 psi | 64% | 2969 fps | 97.4% |
| Vihtavuori N165 | <<locked>> | 94% | 45,368 psi | 71% | 3061 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 51,677 psi | 81% | 3123 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 40,524 psi | 64% | 2976 fps | 97.2% |
| Vihtavuori N555 | <<locked>> | 80% | 32,184 psi | 50% | 2812 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,827 psi | 62% | 2930 fps | 99.1% |
| Winchester 760 | <<locked>> | 80% | 41,655 psi | 65% | 3025 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 84% | 29,414 psi | 46% | 2812 fps | 95.8% |
| Winchester Supreme 780 | <<locked>> | 94% | 48,457 psi | 76% | 3130 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 78 powders for .240 Weath. Mag. loaded with the .243 | 85gr | Barnes X BT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,406 fps; across all powders the maximum-charge window runs from 2,100 fps to 3,406 fps. Alliant Reloder-22 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 85.0 gr projectile in 0.243" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-22, Alliant Reloder-23, 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, Alliant Reloder-16, ReloadSwiss RS 70 rank at the top here: for .240 Weath. Mag. with the .243 | 85gr | Barnes X 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.