Load Specifications
Load data in caliber .240 Weath. Mag. with .243 | 77gr | Hasler ARIETE bullet and 92 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-16, ReloadSwiss RS 70 and Alliant Reloder-17.
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 2015 | <<locked>> | 82% | 57,014 psi | 89% | 3310 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 57,029 psi | 89% | 3337 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 55,288 psi | 87% | 3323 fps | 96.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 48,472 psi | 76% | 3271 fps | 96.9% |
| Accurate 4064 | <<locked>> | 88% | 57,058 psi | 89% | 3389 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 54,273 psi | 85% | 3422 fps | 99.2% |
| ADI AR 2206H | <<locked>> | 84% | 56,492 psi | 89% | 3422 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 90% | 57,711 psi | 90% | 3422 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 82% | 55,100 psi | 86% | 3363 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 56,637 psi | 89% | 3343 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 57,087 psi | 89% | 3556 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 54,766 psi | 86% | 3389 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 55,143 psi | 86% | 3412 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 96% | 54,955 psi | 86% | 3488 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 92% | 56,434 psi | 88% | 3524 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 45,672 psi | 72% | 3301 fps | 99.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 52,185 psi | 82% | 3504 fps | 99.1% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 56,942 psi | 89% | 3435 fps | 99.6% |
| Bofors RP3 | <<locked>> | 88% | 55,709 psi | 87% | 3406 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 55,347 psi | 87% | 3369 fps | 96.8% |
| Hodgdon Benchmark | <<locked>> | 82% | 56,681 psi | 89% | 3350 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 55,216 psi | 87% | 3392 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 56,333 psi | 88% | 3419 fps | 99.1% |
| Hodgdon H414 | <<locked>> | 94% | 56,753 psi | 89% | 3474 fps | 97.7% |
| Hodgdon H4350 | <<locked>> | 92% | 56,913 psi | 89% | 3435 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 84% | 57,145 psi | 90% | 3435 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 55,143 psi | 86% | 3402 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 57,624 psi | 90% | 3474 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 57,696 psi | 90% | 3517 fps | 97.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,810 psi | 56% | 2185 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 54,839 psi | 86% | 3379 fps | 99.9% |
| IMR 3031 | <<locked>> | 84% | 57,522 psi | 90% | 3422 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 57,261 psi | 90% | 3409 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 86% | 56,927 psi | 89% | 3379 fps | 97.6% |
| IMR 4350 | <<locked>> | 96% | 56,188 psi | 88% | 3399 fps | 97% |
| IMR 4451 Enduron | <<locked>> | 92% | 57,000 psi | 89% | 3402 fps | 97.5% |
| IMR 4831 | <<locked>> | 96% | 54,650 psi | 86% | 3409 fps | 99.3% |
| IMR 4895 | <<locked>> | 86% | 56,594 psi | 89% | 3448 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 82% | 55,100 psi | 86% | 3363 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 57,000 psi | 89% | 3396 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 55,564 psi | 87% | 3340 fps | 99.8% |
| Lovex S062 | <<locked>> | 88% | 57,319 psi | 90% | 3402 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 56,942 psi | 89% | 3402 fps | 98.7% |
| Lovex S070 | <<locked>> | 94% | 54,549 psi | 85% | 3376 fps | 97.4% |
| Norma 201 | <<locked>> | 84% | 55,129 psi | 86% | 3360 fps | 100% |
| Norma 202 | <<locked>> | 84% | 55,927 psi | 88% | 3363 fps | 100% |
| Norma 203B | <<locked>> | 86% | 54,433 psi | 85% | 3396 fps | 99.8% |
| Norma MRPᴾ | <<locked>> | 100% | 51,605 psi | 81% | 3451 fps | 96.6% |
| Norma URP | <<locked>> | 96% | 56,666 psi | 89% | 3468 fps | 99.4% |
| Ramshot Big Game | <<locked>> | 86% | 55,230 psi | 87% | 3422 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 96% | 55,825 psi | 87% | 3461 fps | 98.3% |
| Ramshot TAC | <<locked>> | 82% | 55,680 psi | 87% | 3379 fps | 98.7% |
| Ramshot Wild Boar | <<locked>> | 82% | 55,709 psi | 87% | 3406 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,506 psi | 57% | 2238 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 56,550 psi | 89% | 3396 fps | 98.1% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 55,898 psi | 88% | 3488 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 56,043 psi | 88% | 3527 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 54,143 psi | 85% | 3442 fps | 99.1% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 56,927 psi | 89% | 3537 fps | 99.3% |
| Rottweil R 901 | <<locked>> | 82% | 55,825 psi | 87% | 3343 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 55,753 psi | 87% | 3360 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 55,564 psi | 87% | 3396 fps | 100% |
| Rottweil R 907 | <<locked>> | 92% | 55,347 psi | 87% | 3369 fps | 96.8% |
| Shooters World Long Rifle | <<locked>> | 94% | 56,942 psi | 89% | 3402 fps | 98.7% |
| Shooters World Match Rifle | <<locked>> | 84% | 57,000 psi | 89% | 3396 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 57,319 psi | 90% | 3402 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 54,549 psi | 85% | 3376 fps | 97.4% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 57,406 psi | 90% | 3465 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 54,491 psi | 85% | 3353 fps | 98.8% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 55,143 psi | 86% | 3386 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 56,376 psi | 88% | 3297 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 57,043 psi | 89% | 3291 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 57,087 psi | 89% | 3343 fps | 97.7% |
| Somchem S335 | <<locked>> | 84% | 55,767 psi | 87% | 3287 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 53,983 psi | 85% | 3343 fps | 99.7% |
| Somchem S355 | <<locked>> | 90% | 55,680 psi | 87% | 3396 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 55,680 psi | 87% | 3474 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 54,737 psi | 86% | 3396 fps | 96.7% |
| Vihtavuori N133 | <<locked>> | 84% | 56,724 psi | 89% | 3281 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 55,956 psi | 88% | 3327 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 56,579 psi | 89% | 3340 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 57,290 psi | 90% | 3369 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 55,405 psi | 87% | 3406 fps | 99.3% |
| Vihtavuori N530 | <<locked>> | 82% | 55,695 psi | 87% | 3363 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 54,911 psi | 86% | 3330 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 54,607 psi | 86% | 3402 fps | 99.1% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 50,966 psi | 80% | 3396 fps | 99.3% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 55,463 psi | 87% | 3369 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 56,304 psi | 88% | 3419 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 57,101 psi | 89% | 3484 fps | 97.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,220 psi | 65% | 3320 fps | 99.5% |
| Winchester StaBALL Match | <<locked>> | 84% | 55,347 psi | 87% | 3392 fps | 100% |
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% | 53,650 psi | 84% | 3258 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 46,601 psi | 73% | 3166 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 51,822 psi | 81% | 3261 fps | 95.8% |
| Accurate 3100 | <<locked>> | 96% | 42,206 psi | 66% | 3133 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 44,077 psi | 69% | 3156 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 38,014 psi | 60% | 3071 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 49,850 psi | 78% | 3297 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 80% | 42,177 psi | 66% | 3110 fps | 97.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 51,895 psi | 81% | 3307 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 53,098 psi | 83% | 3291 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 46,108 psi | 72% | 3337 fps | 98.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,395 psi | 66% | 3143 fps | 98.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 45,397 psi | 71% | 3219 fps | 98.3% |
| Alliant Reloder-16 | 43.9 gr | 84% | 37,260 psi | 58% | 3081 fps | 95.4% |
| Alliant Reloder-17 | 45.1 gr | 80% | 37,014 psi | 58% | 3100 fps | 97.2% |
| Alliant Reloder-23 | <<locked>> | 90% | 32,909 psi | 52% | 2966 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 92% | 38,783 psi | 61% | 3186 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 49,385 psi | 77% | 3294 fps | 98.6% |
| Bofors RP3 | <<locked>> | 80% | 42,308 psi | 66% | 3143 fps | 98.9% |
| Bofors RP7 | <<locked>> | 88% | 48,718 psi | 76% | 3241 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 53,142 psi | 83% | 3287 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 51,648 psi | 81% | 3330 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 43,004 psi | 67% | 3150 fps | 96.6% |
| Hodgdon H414 | <<locked>> | 88% | 46,340 psi | 73% | 3268 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 90% | 53,272 psi | 83% | 3369 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 50,357 psi | 79% | 3310 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 32,314 psi | 51% | 2897 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 46,775 psi | 73% | 3274 fps | 99.5% |
| Hodgdon Superformance | <<locked>> | 90% | 49,690 psi | 78% | 3363 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,716 psi | 42% | 1959 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 48,008 psi | 75% | 3248 fps | 99.4% |
| IMR 3031 | <<locked>> | 80% | 50,343 psi | 79% | 3304 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 44,324 psi | 69% | 3156 fps | 98.2% |
| IMR 4166 Enduron | <<locked>> | 80% | 46,833 psi | 73% | 3182 fps | 95.3% |
| IMR 4350 | <<locked>> | 92% | 49,559 psi | 78% | 3271 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 86% | 47,224 psi | 74% | 3212 fps | 95.3% |
| IMR 4831 | <<locked>> | 84% | 36,564 psi | 57% | 3015 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 46,572 psi | 73% | 3255 fps | 98.9% |
| IMR 8208 XBR | <<locked>> | 80% | 51,895 psi | 81% | 3307 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 49,734 psi | 78% | 3271 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 49,081 psi | 77% | 3219 fps | 99.3% |
| Lovex S062 | <<locked>> | 80% | 44,469 psi | 70% | 3159 fps | 99.4% |
| Lovex S065 | <<locked>> | 84% | 41,510 psi | 65% | 3084 fps | 95.2% |
| Lovex S070 | <<locked>> | 88% | 45,281 psi | 71% | 3189 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 48,544 psi | 76% | 3238 fps | 99.8% |
| Norma 202 | <<locked>> | 80% | 49,240 psi | 77% | 3248 fps | 100% |
| Norma 203B | <<locked>> | 80% | 44,788 psi | 70% | 3205 fps | 98.6% |
| Norma MRP | <<locked>> | 98% | 47,805 psi | 75% | 3369 fps | 95.5% |
| Norma URP | <<locked>> | 84% | 37,913 psi | 59% | 3068 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 44,904 psi | 70% | 3219 fps | 98.5% |
| Ramshot Hunter | <<locked>> | 88% | 42,380 psi | 66% | 3182 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 51,909 psi | 81% | 3307 fps | 98% |
| Ramshot Wild Boar | <<locked>> | 80% | 51,866 psi | 81% | 3333 fps | 99.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,166 psi | 43% | 2008 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 46,195 psi | 72% | 3196 fps | 95.9% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 48,660 psi | 76% | 3350 fps | 98.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 39,378 psi | 62% | 3182 fps | 99.6% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 37,956 psi | 59% | 3087 fps | 95.1% |
| ReloadSwiss RS 70 | 49.2 gr | 86% | 40,045 psi | 63% | 3166 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 52,562 psi | 82% | 3287 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 46,224 psi | 72% | 3182 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 80% | 39,813 psi | 62% | 3077 fps | 98.1% |
| Rottweil R 907 | <<locked>> | 88% | 48,718 psi | 76% | 3241 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 84% | 41,510 psi | 65% | 3084 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 49,734 psi | 78% | 3271 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 44,469 psi | 70% | 3159 fps | 99.4% |
| Shooters World SW4350 | <<locked>> | 88% | 45,281 psi | 71% | 3189 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,017 psi | 64% | 3136 fps | 97.7% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 50,647 psi | 79% | 3284 fps | 98.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 48,385 psi | 76% | 3258 fps | 99.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 49,472 psi | 78% | 3182 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,568 psi | 65% | 3018 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 46,920 psi | 74% | 3153 fps | 95.5% |
| Somchem S335 | <<locked>> | 80% | 49,269 psi | 77% | 3176 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 50,256 psi | 79% | 3274 fps | 99.4% |
| Somchem S355 | <<locked>> | 80% | 40,306 psi | 63% | 3081 fps | 98% |
| Somchem S365 | <<locked>> | 80% | 29,675 psi | 47% | 2871 fps | 95.6% |
| Somchem S385 | <<locked>> | 98% | 51,068 psi | 80% | 3323 fps | 95.8% |
| Vihtavuori N133 | <<locked>> | 80% | 49,922 psi | 78% | 3173 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 46,006 psi | 72% | 3156 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,586 psi | 73% | 3166 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 38,537 psi | 60% | 3009 fps | 98.8% |
| Vihtavuori N160 | <<locked>> | 84% | 39,523 psi | 62% | 3074 fps | 95.9% |
| Vihtavuori N530 | <<locked>> | 80% | 52,025 psi | 82% | 3297 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 45,092 psi | 71% | 3150 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 39,102 psi | 61% | 3071 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 90% | 36,201 psi | 57% | 3058 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,113 psi | 53% | 2907 fps | 96.5% |
| Winchester 748 | <<locked>> | 80% | 52,634 psi | 82% | 3356 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 46,615 psi | 73% | 3274 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 92% | 31,256 psi | 49% | 2989 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 48,182 psi | 76% | 3261 fps | 99.5% |
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 92 powders for .240 Weath. Mag. loaded with the .243 | 77gr | Hasler ARIETE. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,556 fps; across all powders the maximum-charge window runs from 2,185 fps to 3,556 fps. Accurate 3100 gives the best case fill at 100 %, and 92 of the 92 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 77.0 gr projectile in 0.243" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, Alliant Reloder-26 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-16, ReloadSwiss RS 70, Alliant Reloder-17 rank at the top here: for .240 Weath. Mag. with the .243 | 77gr | Hasler ARIETE 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.