Load Specifications
Load data in caliber .243 WSSM with .243 | 65gr | Berger ND bullet and 90 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 60 and ReloadSwiss RS 52.
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>> | 88% | 56,492 psi | 89% | 3514 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 55,042 psi | 86% | 3527 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 54,375 psi | 85% | 3514 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 57,188 psi | 90% | 3596 fps | 100% |
| Accurate 4064 | <<locked>> | 94% | 54,433 psi | 85% | 3560 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 50,401 psi | 79% | 3537 fps | 96.6% |
| Accurate LT-30 | <<locked>> | 82% | 55,376 psi | 87% | 3451 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 55,738 psi | 87% | 3481 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 55,405 psi | 87% | 3593 fps | 98.6% |
| ADI AR 2208 | <<locked>> | 96% | 56,840 psi | 89% | 3589 fps | 98.3% |
| ADI AR 2219 | <<locked>> | 82% | 56,579 psi | 89% | 3589 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 88% | 54,723 psi | 86% | 3550 fps | 99.3% |
| Alliant AR-Comp | <<locked>> | 88% | 54,592 psi | 86% | 3547 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 56,173 psi | 88% | 3684 fps | 99.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 55,608 psi | 87% | 3717 fps | 98.1% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 56,159 psi | 88% | 3612 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 56,463 psi | 88% | 3615 fps | 99.4% |
| Alliant Reloder-10x | <<locked>> | 84% | 55,767 psi | 87% | 3530 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 56,913 psi | 89% | 3635 fps | 98.5% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 49,284 psi | 77% | 3543 fps | 96.6% |
| Alliant Reloder-17 | <<locked>> | 98% | 53,983 psi | 85% | 3675 fps | 99.1% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 54,911 psi | 86% | 3428 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 55,695 psi | 87% | 3599 fps | 97.9% |
| Bofors RP3 | <<locked>> | 96% | 57,072 psi | 89% | 3632 fps | 99.5% |
| Hodgdon Benchmark | <<locked>> | 88% | 56,463 psi | 88% | 3537 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 90% | 57,711 psi | 90% | 3638 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 86% | 55,608 psi | 87% | 3681 fps | 98.3% |
| Hodgdon H322 | <<locked>> | 84% | 55,056 psi | 86% | 3563 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 56,565 psi | 89% | 3586 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 54,592 psi | 86% | 3566 fps | 97% |
| Hodgdon H4895 | <<locked>> | 90% | 55,970 psi | 88% | 3609 fps | 99.1% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 45,440 psi | 71% | 3402 fps | 97.3% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 55,535 psi | 87% | 3638 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,577 psi | 54% | 2280 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 57,421 psi | 90% | 3612 fps | 99.2% |
| IMR 3031 | <<locked>> | 90% | 55,448 psi | 87% | 3612 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 55,970 psi | 88% | 3570 fps | 98.4% |
| IMR 4198 | <<locked>> | 84% | 55,666 psi | 87% | 3488 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 47,892 psi | 75% | 3461 fps | 96.2% |
| IMR 4895 | <<locked>> | 92% | 54,882 psi | 86% | 3615 fps | 98.7% |
| IMR 8208 XBR | <<locked>> | 88% | 54,723 psi | 86% | 3550 fps | 99.3% |
| Lovex D073.5 | <<locked>> | 84% | 54,984 psi | 86% | 3530 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 90% | 54,955 psi | 86% | 3566 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 55,535 psi | 87% | 3520 fps | 98.7% |
| Lovex S062 | <<locked>> | 94% | 55,564 psi | 87% | 3566 fps | 99.5% |
| Lovex S065ᴾ | <<locked>> | 100% | 55,114 psi | 86% | 3540 fps | 96.2% |
| Norma 201 | <<locked>> | 92% | 57,682 psi | 90% | 3599 fps | 99.6% |
| Norma 202 | <<locked>> | 90% | 54,549 psi | 85% | 3550 fps | 100% |
| Norma 203B | <<locked>> | 94% | 55,985 psi | 88% | 3615 fps | 98.8% |
| Norma URPᴾ | <<locked>> | 100% | 49,893 psi | 78% | 3530 fps | 96.5% |
| Ramshot Big Game | <<locked>> | 94% | 57,261 psi | 90% | 3648 fps | 98.8% |
| Ramshot TAC | <<locked>> | 88% | 55,593 psi | 87% | 3547 fps | 96.5% |
| Ramshot Wild Boar | <<locked>> | 88% | 54,868 psi | 86% | 3576 fps | 98.6% |
| Ramshot X-Terminator | <<locked>> | 86% | 56,072 psi | 88% | 3543 fps | 98.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,853 psi | 55% | 2333 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 54,317 psi | 85% | 3540 fps | 99.8% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 57,290 psi | 90% | 3714 fps | 98.5% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 57,667 psi | 90% | 3760 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 50,285 psi | 79% | 3553 fps | 96.4% |
| Rottweil R 901 | <<locked>> | 88% | 55,158 psi | 86% | 3537 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 54,636 psi | 86% | 3530 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 98% | 56,971 psi | 89% | 3619 fps | 99.3% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 55,114 psi | 86% | 3540 fps | 96.2% |
| Shooters World Match Rifle | <<locked>> | 90% | 54,955 psi | 86% | 3566 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 55,564 psi | 87% | 3566 fps | 99.5% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 54,070 psi | 85% | 3494 fps | 99.1% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 57,058 psi | 89% | 3593 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 55,129 psi | 86% | 3619 fps | 98.6% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 56,695 psi | 89% | 3556 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 57,638 psi | 90% | 3589 fps | 97.4% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 57,696 psi | 90% | 3619 fps | 99% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 56,057 psi | 88% | 3488 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 56,086 psi | 88% | 3474 fps | 100% |
| Somchem S321 | <<locked>> | 86% | 56,478 psi | 89% | 3589 fps | 99.7% |
| Somchem S335 | <<locked>> | 90% | 55,288 psi | 87% | 3478 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 56,869 psi | 89% | 3579 fps | 98.8% |
| Somchem S355 | <<locked>> | 98% | 56,942 psi | 89% | 3609 fps | 99.2% |
| Somchem S365ᴾ | <<locked>> | 100% | 44,686 psi | 70% | 3465 fps | 98.5% |
| Vihtavuori N130 | <<locked>> | 86% | 55,695 psi | 87% | 3461 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 56,028 psi | 88% | 3474 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 57,392 psi | 90% | 3566 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 55,259 psi | 87% | 3520 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 55,535 psi | 87% | 3537 fps | 99.7% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 52,533 psi | 82% | 3533 fps | 96.9% |
| Vihtavuori N530 | <<locked>> | 88% | 55,158 psi | 86% | 3547 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 94% | 57,290 psi | 90% | 3566 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 51,938 psi | 81% | 3533 fps | 96.7% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 54,172 psi | 85% | 3520 fps | 99.1% |
| Winchester 748 | <<locked>> | 88% | 54,694 psi | 86% | 3596 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 90% | 54,056 psi | 85% | 3563 fps | 98.9% |
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% | 43,613 psi | 68% | 3278 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 47,964 psi | 75% | 3396 fps | 99.7% |
| Accurate 2495 | <<locked>> | 80% | 36,201 psi | 57% | 3146 fps | 99.7% |
| Accurate 2520 | <<locked>> | 80% | 42,902 psi | 67% | 3320 fps | 98.8% |
| Accurate 4064 | <<locked>> | 80% | 34,171 psi | 54% | 3114 fps | 97.6% |
| Accurate 4350 | <<locked>> | 98% | 47,050 psi | 74% | 3468 fps | 95.8% |
| Accurate LT-30 | <<locked>> | 80% | 51,764 psi | 81% | 3392 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 52,098 psi | 82% | 3415 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 80% | 40,321 psi | 63% | 3261 fps | 95.1% |
| ADI AR 2208 | <<locked>> | 88% | 43,947 psi | 69% | 3323 fps | 95.5% |
| ADI AR 2219 | <<locked>> | 80% | 52,794 psi | 83% | 3524 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 42,337 psi | 66% | 3291 fps | 97.2% |
| Alliant AR-Comp | <<locked>> | 80% | 41,466 psi | 65% | 3307 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 49,066 psi | 77% | 3540 fps | 98% |
| Alliant Power Pro 2000-MR | 43.8 gr | 86% | 44,904 psi | 70% | 3474 fps | 95.4% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 40,756 psi | 64% | 3278 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 38,087 psi | 60% | 3219 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 49,211 psi | 77% | 3415 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 43,888 psi | 69% | 3363 fps | 95.7% |
| Alliant Reloder-16 | <<locked>> | 98% | 46,035 psi | 72% | 3471 fps | 95.6% |
| Alliant Reloder-17 | <<locked>> | 90% | 40,698 psi | 64% | 3363 fps | 95.7% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 51,517 psi | 81% | 3369 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 45,223 psi | 71% | 3383 fps | 95.4% |
| Bofors RP3 | <<locked>> | 84% | 37,768 psi | 59% | 3215 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 44,251 psi | 69% | 3294 fps | 98.2% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,654 psi | 64% | 3287 fps | 97.4% |
| Hodgdon CFE223 | <<locked>> | 80% | 44,715 psi | 70% | 3451 fps | 95.9% |
| Hodgdon H322 | <<locked>> | 80% | 48,124 psi | 75% | 3435 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 49,400 psi | 77% | 3455 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 90% | 47,877 psi | 75% | 3432 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 40,611 psi | 64% | 3278 fps | 95.9% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 39,697 psi | 62% | 3264 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,608 psi | 57% | 3215 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,686 psi | 40% | 2051 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,870 psi | 61% | 3212 fps | 95.3% |
| IMR 3031 | <<locked>> | 80% | 39,566 psi | 62% | 3294 fps | 99.7% |
| IMR 4064 | <<locked>> | 86% | 43,395 psi | 68% | 3310 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 49,385 psi | 77% | 3383 fps | 100% |
| IMR 4831 | <<locked>> | 98% | 44,918 psi | 70% | 3399 fps | 95.3% |
| IMR 4895 | <<locked>> | 84% | 42,221 psi | 66% | 3343 fps | 95.9% |
| IMR 8208 XBR | <<locked>> | 80% | 42,337 psi | 66% | 3291 fps | 97.2% |
| Lovex D073.5 | <<locked>> | 80% | 47,587 psi | 75% | 3389 fps | 99% |
| Lovex D073.6 | <<locked>> | 80% | 38,812 psi | 61% | 3232 fps | 97.9% |
| Lovex S060 | <<locked>> | 80% | 40,596 psi | 64% | 3199 fps | 95.3% |
| Lovex S062 | <<locked>> | 80% | 35,534 psi | 56% | 3117 fps | 95.1% |
| Lovex S065 | <<locked>> | 98% | 51,576 psi | 81% | 3471 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 39,305 psi | 62% | 3209 fps | 96.4% |
| Norma 202 | <<locked>> | 80% | 39,392 psi | 62% | 3232 fps | 98.6% |
| Norma 203B | <<locked>> | 84% | 40,582 psi | 64% | 3287 fps | 95.3% |
| Norma URP | <<locked>> | 98% | 46,847 psi | 73% | 3461 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 86% | 43,178 psi | 68% | 3360 fps | 95.9% |
| Ramshot TAC | <<locked>> | 86% | 51,750 psi | 81% | 3474 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,611 psi | 65% | 3294 fps | 95.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 45,818 psi | 72% | 3337 fps | 96.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,759 psi | 40% | 2093 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 47,413 psi | 74% | 3402 fps | 99.2% |
| ReloadSwiss RS 52 | 41.5 gr | 84% | 43,134 psi | 68% | 3422 fps | 95.3% |
| ReloadSwiss RS 60 | 41.1 gr | 82% | 33,025 psi | 52% | 3150 fps | 95% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 46,804 psi | 73% | 3481 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 42,975 psi | 67% | 3291 fps | 99% |
| Rottweil R 902 | <<locked>> | 80% | 37,478 psi | 59% | 3153 fps | 95.7% |
| Rottweil R 903 | <<locked>> | 86% | 37,913 psi | 59% | 3212 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 98% | 51,576 psi | 81% | 3471 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,812 psi | 61% | 3232 fps | 97.9% |
| Shooters World Precision | <<locked>> | 80% | 35,534 psi | 56% | 3117 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 50,169 psi | 79% | 3419 fps | 98.5% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 53,388 psi | 84% | 3530 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 42,119 psi | 66% | 3343 fps | 95.7% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 49,908 psi | 78% | 3438 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 49,893 psi | 78% | 3442 fps | 95.8% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 41,553 psi | 65% | 3281 fps | 95.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,901 psi | 64% | 3189 fps | 98.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,721 psi | 53% | 3009 fps | 98.1% |
| Somchem S321 | <<locked>> | 80% | 45,832 psi | 72% | 3379 fps | 98.3% |
| Somchem S335 | <<locked>> | 80% | 40,408 psi | 63% | 3186 fps | 99.3% |
| Somchem S341 | <<locked>> | 80% | 40,176 psi | 63% | 3228 fps | 95% |
| Somchem S355 | <<locked>> | 86% | 38,754 psi | 61% | 3222 fps | 95.3% |
| Somchem S365 | <<locked>> | 94% | 36,405 psi | 57% | 3248 fps | 95.9% |
| Vihtavuori N130 | <<locked>> | 80% | 46,325 psi | 73% | 3297 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 41,046 psi | 64% | 3196 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,448 psi | 57% | 3156 fps | 99.7% |
| Vihtavuori N140 | <<locked>> | 80% | 37,231 psi | 58% | 3146 fps | 98.4% |
| Vihtavuori N150 | <<locked>> | 84% | 34,548 psi | 54% | 3077 fps | 95.4% |
| Vihtavuori N160 | <<locked>> | 96% | 45,876 psi | 72% | 3399 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 42,308 psi | 66% | 3281 fps | 97.3% |
| Vihtavuori N540 | <<locked>> | 80% | 36,085 psi | 57% | 3127 fps | 97.7% |
| Vihtavuori N550 | <<locked>> | 98% | 48,472 psi | 76% | 3465 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 38,261 psi | 60% | 3169 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 41,350 psi | 65% | 3317 fps | 97.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,029 psi | 60% | 3209 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 108 powders for .243 WSSM loaded with the .243 | 65gr | Berger ND. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,760 fps; across all powders the maximum-charge window runs from 2,280 fps to 3,760 fps. Accurate 4350 gives the best case fill at 100 %, and 108 of the 108 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 65.0 gr projectile in 0.243" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-23 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 Power Pro 2000-MR, ReloadSwiss RS 60, ReloadSwiss RS 52 rank at the top here: for .243 WSSM with the .243 | 65gr | Berger ND they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Alliant Reloder-23, Bofors RP7 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.