Load Specifications
Load data in caliber .240 Weath. Mag. with .243 | 71gr | Berger BT M bullet and 90 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-17 and ReloadSwiss RS 60.
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 2015 | <<locked>> | 82% | 55,448 psi | 87% | 3406 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 55,347 psi | 87% | 3432 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 56,492 psi | 89% | 3497 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 57,537 psi | 90% | 3471 fps | 96.3% |
| Accurate 4064 | <<locked>> | 88% | 55,274 psi | 87% | 3478 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 56,173 psi | 88% | 3563 fps | 99.1% |
| ADI AR 2206H | <<locked>> | 84% | 55,013 psi | 86% | 3510 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 90% | 56,101 psi | 88% | 3507 fps | 99.4% |
| ADI Benchmark 8208 | <<locked>> | 84% | 57,334 psi | 90% | 3517 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 54,766 psi | 86% | 3438 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 55,332 psi | 87% | 3642 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 56,739 psi | 89% | 3537 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 57,087 psi | 89% | 3560 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 98% | 56,855 psi | 89% | 3632 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 92% | 54,766 psi | 86% | 3609 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 43,947 psi | 69% | 3363 fps | 98.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 50,357 psi | 79% | 3566 fps | 98.2% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 55,100 psi | 86% | 3514 fps | 99% |
| Bofors RP3 | <<locked>> | 90% | 57,595 psi | 90% | 3553 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 57,246 psi | 90% | 3510 fps | 96.5% |
| Hodgdon Benchmark | <<locked>> | 82% | 55,158 psi | 86% | 3438 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 57,435 psi | 90% | 3543 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 54,491 psi | 85% | 3497 fps | 98.5% |
| Hodgdon H414 | <<locked>> | 94% | 54,868 psi | 86% | 3547 fps | 96.7% |
| Hodgdon H4895 | <<locked>> | 84% | 55,622 psi | 87% | 3524 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 57,072 psi | 89% | 3547 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 55,680 psi | 87% | 3553 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 94% | 55,767 psi | 87% | 3583 fps | 96.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,534 psi | 56% | 2270 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 56,681 psi | 89% | 3524 fps | 99.9% |
| IMR 3031 | <<locked>> | 84% | 55,579 psi | 87% | 3510 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 55,724 psi | 87% | 3494 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 86% | 55,434 psi | 87% | 3461 fps | 96.7% |
| IMR 4350 | <<locked>> | 96% | 54,520 psi | 85% | 3471 fps | 96% |
| IMR 4451 Enduron | <<locked>> | 92% | 55,637 psi | 87% | 3488 fps | 96.7% |
| IMR 4831 | <<locked>> | 98% | 56,463 psi | 88% | 3550 fps | 99.2% |
| IMR 4895 | <<locked>> | 86% | 54,911 psi | 86% | 3533 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 84% | 57,334 psi | 90% | 3517 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 55,216 psi | 87% | 3484 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 57,566 psi | 90% | 3488 fps | 99.8% |
| Lovex S062 | <<locked>> | 88% | 55,738 psi | 87% | 3491 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 55,405 psi | 87% | 3481 fps | 98% |
| Lovex S070 | <<locked>> | 96% | 56,478 psi | 89% | 3517 fps | 97.2% |
| Norma 201 | <<locked>> | 86% | 57,334 psi | 90% | 3514 fps | 100% |
| Norma 202 | <<locked>> | 84% | 54,186 psi | 85% | 3451 fps | 100% |
| Norma 203B | <<locked>> | 88% | 56,304 psi | 88% | 3543 fps | 99.7% |
| Norma URP | <<locked>> | 96% | 54,781 psi | 86% | 3543 fps | 98.8% |
| Ramshot Big Game | <<locked>> | 88% | 57,232 psi | 90% | 3566 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 98% | 57,508 psi | 90% | 3599 fps | 98.1% |
| Ramshot TAC | <<locked>> | 82% | 54,085 psi | 85% | 3458 fps | 97.9% |
| Ramshot Wild Boar | <<locked>> | 82% | 54,041 psi | 85% | 3484 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,143 psi | 57% | 2326 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 54,694 psi | 86% | 3468 fps | 97.2% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 53,998 psi | 85% | 3570 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 54,143 psi | 85% | 3609 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 56,043 psi | 88% | 3579 fps | 98.9% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 55,114 psi | 86% | 3609 fps | 98.6% |
| Rottweil R 901 | <<locked>> | 82% | 54,302 psi | 85% | 3438 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 54,331 psi | 85% | 3448 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 92% | 57,435 psi | 90% | 3543 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 94% | 57,246 psi | 90% | 3510 fps | 96.5% |
| Shooters World Long Rifle | <<locked>> | 94% | 55,405 psi | 87% | 3481 fps | 98% |
| Shooters World Match Rifle | <<locked>> | 84% | 55,216 psi | 87% | 3484 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 55,738 psi | 87% | 3491 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 56,478 psi | 89% | 3517 fps | 97.2% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 55,680 psi | 87% | 3547 fps | 99.6% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 56,724 psi | 89% | 3504 fps | 98.7% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 57,058 psi | 89% | 3530 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 54,839 psi | 86% | 3389 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 55,550 psi | 87% | 3383 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 55,535 psi | 87% | 3422 fps | 96.8% |
| Somchem S335 | <<locked>> | 84% | 54,491 psi | 85% | 3383 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 56,144 psi | 88% | 3491 fps | 99.6% |
| Somchem S355 | <<locked>> | 92% | 57,609 psi | 90% | 3543 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 57,377 psi | 90% | 3615 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 57,566 psi | 90% | 3402 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 55,187 psi | 86% | 3376 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 54,099 psi | 85% | 3415 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 55,056 psi | 86% | 3432 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 55,419 psi | 87% | 3455 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 57,363 psi | 90% | 3547 fps | 99.1% |
| Vihtavuori N530 | <<locked>> | 82% | 54,259 psi | 85% | 3455 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 88% | 56,797 psi | 89% | 3471 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 56,420 psi | 88% | 3543 fps | 98.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 48,834 psi | 77% | 3458 fps | 98.5% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 53,867 psi | 84% | 3448 fps | 99.9% |
| Winchester 748 | <<locked>> | 82% | 54,549 psi | 85% | 3507 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 55,172 psi | 86% | 3553 fps | 96.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 39,740 psi | 62% | 3366 fps | 98.6% |
| Winchester StaBALL Match | <<locked>> | 86% | 57,508 psi | 90% | 3543 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 2015 | <<locked>> | 80% | 52,199 psi | 82% | 3353 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 45,049 psi | 71% | 3248 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 52,852 psi | 83% | 3435 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 53,650 psi | 84% | 3399 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 42,540 psi | 67% | 3235 fps | 99.9% |
| Accurate 4350 | <<locked>> | 86% | 39,320 psi | 62% | 3202 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 48,341 psi | 76% | 3376 fps | 98.7% |
| ADI AR 2208 | <<locked>> | 80% | 40,988 psi | 64% | 3186 fps | 96.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,372 psi | 79% | 3389 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 80% | 51,416 psi | 81% | 3386 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,657 psi | 70% | 3406 fps | 97.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,017 psi | 64% | 3212 fps | 98% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,961 psi | 69% | 3291 fps | 97.4% |
| Alliant Reloder-16 | <<locked>> | 86% | 38,638 psi | 61% | 3219 fps | 95.1% |
| Alliant Reloder-17 | 46.1 gr | 80% | 35,592 psi | 56% | 3153 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 94% | 36,201 psi | 57% | 3156 fps | 96.1% |
| Alliant Reloder-26 | <<locked>> | 94% | 40,321 psi | 63% | 3320 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,892 psi | 75% | 3369 fps | 97.8% |
| Bofors RP3 | <<locked>> | 80% | 41,060 psi | 64% | 3215 fps | 98.1% |
| Bofors RP7 | <<locked>> | 92% | 53,940 psi | 85% | 3448 fps | 95.8% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,764 psi | 81% | 3376 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 50,140 psi | 79% | 3412 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 80% | 41,510 psi | 65% | 3215 fps | 95.4% |
| Hodgdon H414 | <<locked>> | 92% | 51,329 psi | 80% | 3478 fps | 95.8% |
| Hodgdon H4895 | <<locked>> | 80% | 48,834 psi | 77% | 3392 fps | 99.2% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 35,534 psi | 56% | 3084 fps | 95.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 45,339 psi | 71% | 3350 fps | 99% |
| Hodgdon Superformance | <<locked>> | 92% | 51,822 psi | 81% | 3507 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,440 psi | 41% | 2041 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,601 psi | 73% | 3323 fps | 98.8% |
| IMR 3031 | <<locked>> | 80% | 48,704 psi | 76% | 3392 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,062 psi | 67% | 3228 fps | 97.3% |
| IMR 4166 Enduron | <<locked>> | 82% | 48,515 psi | 76% | 3320 fps | 95% |
| IMR 4350 | <<locked>> | 94% | 51,082 psi | 80% | 3406 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 88% | 48,979 psi | 77% | 3353 fps | 95% |
| IMR 4831 | <<locked>> | 88% | 40,466 psi | 63% | 3215 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 45,063 psi | 71% | 3330 fps | 98.2% |
| IMR 8208 XBR | <<locked>> | 80% | 50,372 psi | 79% | 3389 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 80% | 47,979 psi | 75% | 3353 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,805 psi | 75% | 3304 fps | 98.7% |
| Lovex S062 | <<locked>> | 80% | 43,105 psi | 68% | 3238 fps | 98.8% |
| Lovex S065 | <<locked>> | 88% | 45,716 psi | 72% | 3281 fps | 95.8% |
| Lovex S070 | <<locked>> | 92% | 49,661 psi | 78% | 3383 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 47,137 psi | 74% | 3320 fps | 99.4% |
| Norma 202 | <<locked>> | 80% | 47,776 psi | 75% | 3333 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,323 psi | 68% | 3278 fps | 97.8% |
| Norma URP | <<locked>> | 86% | 39,233 psi | 61% | 3202 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 43,410 psi | 68% | 3287 fps | 97.6% |
| Ramshot Hunter | <<locked>> | 92% | 46,847 psi | 73% | 3386 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 50,517 psi | 79% | 3386 fps | 97.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 50,357 psi | 79% | 3412 fps | 99% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,832 psi | 42% | 2087 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 47,819 psi | 75% | 3330 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,760 psi | 73% | 3419 fps | 97.9% |
| ReloadSwiss RS 60 | 46.1 gr | 80% | 37,869 psi | 59% | 3241 fps | 98.9% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 42,105 psi | 66% | 3291 fps | 95.8% |
| ReloadSwiss RS 70 | 52.7 gr | 90% | 44,585 psi | 70% | 3376 fps | 96% |
| Rottweil R 901 | <<locked>> | 80% | 51,242 psi | 80% | 3379 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,904 psi | 70% | 3261 fps | 99% |
| Rottweil R 903 | <<locked>> | 80% | 38,406 psi | 60% | 3143 fps | 97.1% |
| Rottweil R 907 | <<locked>> | 92% | 53,940 psi | 85% | 3448 fps | 95.8% |
| Shooters World Long Rifle | <<locked>> | 88% | 45,716 psi | 72% | 3281 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,979 psi | 75% | 3353 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 43,105 psi | 68% | 3238 fps | 98.8% |
| Shooters World SW4350 | <<locked>> | 92% | 49,661 psi | 78% | 3383 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,523 psi | 62% | 3199 fps | 96.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 49,182 psi | 77% | 3360 fps | 97.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,818 psi | 73% | 3330 fps | 98.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,269 psi | 76% | 3271 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,422 psi | 63% | 3100 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 48,646 psi | 76% | 3287 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 47,964 psi | 75% | 3268 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 48,776 psi | 76% | 3353 fps | 98.8% |
| Somchem S355 | <<locked>> | 80% | 39,001 psi | 61% | 3150 fps | 97.1% |
| Somchem S365 | <<locked>> | 82% | 30,589 psi | 48% | 2992 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 54,244 psi | 85% | 3350 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 48,646 psi | 76% | 3264 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,628 psi | 70% | 3245 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,165 psi | 71% | 3248 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,260 psi | 58% | 3077 fps | 97.9% |
| Vihtavuori N160 | <<locked>> | 86% | 40,886 psi | 64% | 3205 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 50,763 psi | 80% | 3389 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 80% | 43,627 psi | 68% | 3225 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 40,364 psi | 63% | 3205 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 92% | 37,173 psi | 58% | 3182 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,083 psi | 52% | 2966 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 50,792 psi | 80% | 3438 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 51,619 psi | 81% | 3481 fps | 95.9% |
| Winchester StaBALL HD | <<locked>> | 96% | 34,563 psi | 54% | 3189 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,746 psi | 73% | 3337 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 90 powders for .240 Weath. Mag. loaded with the .243 | 71gr | Berger BT M. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,642 fps; across all powders the maximum-charge window runs from 2,270 fps to 3,642 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 90 of the 90 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 71.0 gr projectile in 0.243" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-26, Hodgdon Hybrid 100V 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 70, Alliant Reloder-17, ReloadSwiss RS 60 rank at the top here: for .240 Weath. Mag. with the .243 | 71gr | Berger BT M 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.