Load Specifications
Load data in caliber .240 Weath. Mag. with .243 | 66gr | SUS-TAC HPT bullet and 88 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-17 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.
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>> | 84% | 56,347 psi | 88% | 3524 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 55,840 psi | 88% | 3543 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 57,450 psi | 90% | 3615 fps | 100% |
| Accurate 4064 | <<locked>> | 90% | 55,709 psi | 87% | 3586 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 56,536 psi | 89% | 3665 fps | 98.6% |
| ADI AR 2206H | <<locked>> | 86% | 55,782 psi | 87% | 3622 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 92% | 56,956 psi | 89% | 3615 fps | 99% |
| ADI Benchmark 8208 | <<locked>> | 84% | 54,549 psi | 85% | 3566 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 84% | 55,405 psi | 87% | 3560 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 55,854 psi | 88% | 3747 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 57,392 psi | 90% | 3645 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 88% | 54,128 psi | 85% | 3602 fps | 98.8% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 57,101 psi | 89% | 3730 fps | 99.1% |
| Alliant Reloder-17 | <<locked>> | 94% | 55,129 psi | 86% | 3711 fps | 99.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,263 psi | 65% | 3376 fps | 97.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,007 psi | 74% | 3573 fps | 96.5% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 56,057 psi | 88% | 3625 fps | 98.7% |
| Bofors RP3 | <<locked>> | 90% | 54,346 psi | 85% | 3593 fps | 99.6% |
| Hodgdon Benchmark | <<locked>> | 84% | 56,144 psi | 88% | 3553 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 54,375 psi | 85% | 3589 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 82% | 56,420 psi | 88% | 3707 fps | 99% |
| Hodgdon H380 | <<locked>> | 90% | 55,506 psi | 87% | 3606 fps | 98% |
| Hodgdon H414 | <<locked>> | 96% | 55,622 psi | 87% | 3652 fps | 96% |
| Hodgdon H4895 | <<locked>> | 86% | 56,347 psi | 88% | 3635 fps | 99.6% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 53,606 psi | 84% | 3583 fps | 99.4% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 56,507 psi | 89% | 3668 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,418 psi | 56% | 2346 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 57,551 psi | 90% | 3635 fps | 99.7% |
| IMR 3031 | <<locked>> | 86% | 56,246 psi | 88% | 3629 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 56,521 psi | 89% | 3602 fps | 99.1% |
| IMR 4166 Enduron | <<locked>> | 88% | 56,405 psi | 88% | 3566 fps | 96.1% |
| IMR 4451 Enduron | <<locked>> | 94% | 56,449 psi | 88% | 3589 fps | 96% |
| IMR 4831ᴾ | <<locked>> | 100% | 56,898 psi | 89% | 3648 fps | 98.8% |
| IMR 4895 | <<locked>> | 88% | 55,550 psi | 87% | 3642 fps | 99.3% |
| IMR 8208 XBR | <<locked>> | 84% | 54,549 psi | 85% | 3566 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 86% | 55,738 psi | 87% | 3593 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 54,998 psi | 86% | 3537 fps | 99.2% |
| Lovex S062 | <<locked>> | 90% | 56,405 psi | 88% | 3599 fps | 99.9% |
| Lovex S065 | <<locked>> | 96% | 55,811 psi | 87% | 3576 fps | 97.4% |
| Lovex S070 | <<locked>> | 98% | 57,159 psi | 90% | 3615 fps | 96.6% |
| Norma 201 | <<locked>> | 86% | 54,505 psi | 85% | 3560 fps | 99.7% |
| Norma 202 | <<locked>> | 86% | 54,897 psi | 86% | 3566 fps | 100% |
| Norma 203B | <<locked>> | 90% | 56,971 psi | 89% | 3655 fps | 99.4% |
| Norma URP | <<locked>> | 98% | 55,230 psi | 87% | 3645 fps | 98.4% |
| Ramshot Big Game | <<locked>> | 88% | 54,070 psi | 85% | 3606 fps | 99% |
| Ramshot Hunter | <<locked>> | 98% | 54,186 psi | 85% | 3625 fps | 96.7% |
| Ramshot TAC | <<locked>> | 84% | 55,158 psi | 86% | 3566 fps | 97.4% |
| Ramshot Wild Boar | <<locked>> | 84% | 54,998 psi | 86% | 3599 fps | 99.2% |
| Ramshot X-Terminator | <<locked>> | 82% | 55,448 psi | 87% | 3556 fps | 99.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,723 psi | 56% | 2395 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 57,522 psi | 90% | 3612 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 55,724 psi | 87% | 3579 fps | 96.7% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 54,418 psi | 85% | 3675 fps | 98.7% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 54,853 psi | 86% | 3724 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 56,289 psi | 88% | 3678 fps | 98.4% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 56,014 psi | 88% | 3711 fps | 98.2% |
| Rottweil R 901 | <<locked>> | 84% | 55,143 psi | 86% | 3553 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 55,100 psi | 86% | 3563 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 92% | 54,186 psi | 85% | 3579 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 96% | 55,811 psi | 87% | 3576 fps | 97.4% |
| Shooters World Match Rifle | <<locked>> | 86% | 55,738 psi | 87% | 3593 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 56,405 psi | 88% | 3599 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 98% | 57,159 psi | 90% | 3615 fps | 96.6% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 56,202 psi | 88% | 3648 fps | 99.3% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 57,493 psi | 90% | 3609 fps | 98.3% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 54,259 psi | 85% | 3573 fps | 99.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 55,579 psi | 87% | 3501 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 56,507 psi | 89% | 3497 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 56,434 psi | 88% | 3524 fps | 96.2% |
| Somchem S321 | <<locked>> | 82% | 56,028 psi | 88% | 3599 fps | 99.9% |
| Somchem S335 | <<locked>> | 86% | 55,361 psi | 87% | 3494 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 57,174 psi | 90% | 3602 fps | 99.4% |
| Somchem S355 | <<locked>> | 92% | 54,563 psi | 86% | 3586 fps | 99.4% |
| Somchem S365ᴾ | <<locked>> | 100% | 53,563 psi | 84% | 3648 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 55,317 psi | 87% | 3471 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 55,825 psi | 87% | 3488 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 54,795 psi | 86% | 3530 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 55,811 psi | 87% | 3543 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 56,144 psi | 88% | 3560 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 54,114 psi | 85% | 3579 fps | 98.1% |
| Vihtavuori N530 | <<locked>> | 84% | 55,143 psi | 86% | 3566 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 88% | 54,288 psi | 85% | 3530 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 56,898 psi | 89% | 3645 fps | 98.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 45,469 psi | 71% | 3478 fps | 97.1% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 54,737 psi | 86% | 3553 fps | 99.7% |
| Winchester 748 | <<locked>> | 84% | 55,477 psi | 87% | 3622 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 55,622 psi | 87% | 3652 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 86% | 54,520 psi | 85% | 3586 fps | 99.5% |
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% | 49,574 psi | 78% | 3406 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 42,583 psi | 67% | 3294 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 49,937 psi | 78% | 3478 fps | 99.9% |
| Accurate 4064 | <<locked>> | 80% | 40,234 psi | 63% | 3271 fps | 99.4% |
| Accurate 4350 | <<locked>> | 90% | 42,366 psi | 66% | 3366 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 45,847 psi | 72% | 3415 fps | 97.6% |
| ADI AR 2208 | <<locked>> | 82% | 41,539 psi | 65% | 3284 fps | 95.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 47,906 psi | 75% | 3432 fps | 99% |
| Alliant AR-Comp | <<locked>> | 80% | 48,385 psi | 76% | 3438 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 42,105 psi | 66% | 3428 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,711 psi | 61% | 3245 fps | 96.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 41,539 psi | 65% | 3320 fps | 95.9% |
| Alliant Reloder-16 | <<locked>> | 90% | 41,423 psi | 65% | 3376 fps | 95.2% |
| Alliant Reloder-17 | 48.3 gr | 84% | 38,798 psi | 61% | 3330 fps | 96.2% |
| Alliant Reloder-23 | <<locked>> | 96% | 36,129 psi | 57% | 3232 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 98% | 43,555 psi | 68% | 3484 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 45,614 psi | 71% | 3409 fps | 96.5% |
| Bofors RP3 | <<locked>> | 80% | 38,551 psi | 60% | 3241 fps | 96.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 49,690 psi | 78% | 3428 fps | 99.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 47,369 psi | 74% | 3451 fps | 99.3% |
| Hodgdon CFE223 | <<locked>> | 80% | 52,460 psi | 82% | 3632 fps | 98.5% |
| Hodgdon H380 | <<locked>> | 84% | 45,136 psi | 71% | 3389 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 94% | 51,692 psi | 81% | 3573 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 46,311 psi | 73% | 3432 fps | 98.2% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 35,752 psi | 56% | 3173 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 42,627 psi | 67% | 3383 fps | 97.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,310 psi | 41% | 2106 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,498 psi | 70% | 3369 fps | 97.8% |
| IMR 3031 | <<locked>> | 80% | 45,861 psi | 72% | 3438 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,785 psi | 64% | 3264 fps | 95.8% |
| IMR 4166 Enduron | <<locked>> | 86% | 52,910 psi | 83% | 3497 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 92% | 52,982 psi | 83% | 3520 fps | 95.2% |
| IMR 4831 | <<locked>> | 92% | 43,526 psi | 68% | 3376 fps | 95.9% |
| IMR 4895 | <<locked>> | 80% | 42,583 psi | 67% | 3363 fps | 96.9% |
| IMR 8208 XBR | <<locked>> | 80% | 47,906 psi | 75% | 3432 fps | 99% |
| Lovex D073.6 | <<locked>> | 80% | 45,498 psi | 71% | 3396 fps | 99.6% |
| Lovex S060 | <<locked>> | 80% | 45,571 psi | 71% | 3340 fps | 97.7% |
| Lovex S062 | <<locked>> | 80% | 40,799 psi | 64% | 3271 fps | 97.7% |
| Lovex S065 | <<locked>> | 90% | 46,224 psi | 72% | 3379 fps | 95% |
| Lovex S070 | <<locked>> | 96% | 53,505 psi | 84% | 3547 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 45,005 psi | 71% | 3363 fps | 98.6% |
| Norma 202 | <<locked>> | 80% | 45,266 psi | 71% | 3379 fps | 99.8% |
| Norma 203B | <<locked>> | 80% | 40,930 psi | 64% | 3307 fps | 96.4% |
| Norma URP | <<locked>> | 90% | 42,250 psi | 66% | 3366 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 40,886 psi | 64% | 3314 fps | 96.1% |
| Ramshot Hunter | <<locked>> | 96% | 50,662 psi | 79% | 3556 fps | 95.8% |
| Ramshot TAC | <<locked>> | 80% | 48,370 psi | 76% | 3428 fps | 95.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 47,761 psi | 75% | 3451 fps | 98.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 52,069 psi | 82% | 3491 fps | 98.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,643 psi | 42% | 2156 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 53,896 psi | 84% | 3547 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 51,982 psi | 81% | 3504 fps | 95.8% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 43,888 psi | 69% | 3445 fps | 96.4% |
| ReloadSwiss RS 60 | 46 gr | 80% | 35,897 psi | 56% | 3264 fps | 97.6% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 42,351 psi | 66% | 3383 fps | 95% |
| ReloadSwiss RS 70 | 53.7 gr | 92% | 45,208 psi | 71% | 3471 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 48,689 psi | 76% | 3432 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 42,569 psi | 67% | 3297 fps | 98.1% |
| Rottweil R 903 | <<locked>> | 80% | 36,071 psi | 57% | 3166 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 90% | 46,224 psi | 72% | 3379 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 45,498 psi | 71% | 3396 fps | 99.6% |
| Shooters World Precision | <<locked>> | 80% | 40,799 psi | 64% | 3271 fps | 97.7% |
| Shooters World SW4350 | <<locked>> | 96% | 53,505 psi | 84% | 3547 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 39,972 psi | 63% | 3301 fps | 95.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 46,543 psi | 73% | 3389 fps | 95.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,382 psi | 70% | 3366 fps | 97.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 45,919 psi | 72% | 3320 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,319 psi | 60% | 3140 fps | 99.6% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 52,765 psi | 83% | 3451 fps | 95.3% |
| Somchem S321 | <<locked>> | 80% | 52,547 psi | 82% | 3533 fps | 99.7% |
| Somchem S335 | <<locked>> | 80% | 45,919 psi | 72% | 3320 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 46,412 psi | 73% | 3392 fps | 97.8% |
| Somchem S355 | <<locked>> | 80% | 37,028 psi | 58% | 3186 fps | 95.6% |
| Somchem S365 | <<locked>> | 86% | 33,054 psi | 52% | 3153 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 51,793 psi | 81% | 3412 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 46,267 psi | 73% | 3317 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 42,061 psi | 66% | 3291 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 42,757 psi | 67% | 3291 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 80% | 35,070 psi | 55% | 3100 fps | 96.5% |
| Vihtavuori N160 | <<locked>> | 90% | 44,092 psi | 69% | 3369 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 48,211 psi | 76% | 3428 fps | 99.1% |
| Vihtavuori N540 | <<locked>> | 80% | 41,582 psi | 65% | 3271 fps | 99.4% |
| Vihtavuori N550 | <<locked>> | 90% | 43,642 psi | 68% | 3369 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 96% | 39,726 psi | 62% | 3337 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 36,013 psi | 56% | 3127 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 48,211 psi | 76% | 3484 fps | 99.6% |
| Winchester 760 | <<locked>> | 94% | 51,982 psi | 81% | 3579 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 44,150 psi | 69% | 3369 fps | 97.8% |
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 88 powders for .240 Weath. Mag. loaded with the .243 | 66gr | SUS-TAC HPT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,747 fps; across all powders the maximum-charge window runs from 2,346 fps to 3,747 fps. Alliant Reloder-16 gives the best case fill at 100 %, and 88 of the 88 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 66.0 gr projectile in 0.243" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-16, 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. ReloadSwiss RS 60, Alliant Reloder-17, ReloadSwiss RS 70 rank at the top here: for .240 Weath. Mag. with the .243 | 66gr | SUS-TAC HPT 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.