Load Specifications
Load data in caliber 7 mm PRC with .284 | 100gr | Sierra VarmintKing bullet and 93 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, ReloadSwiss RS 60 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.
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% | 55,506 psi | 85% | 3356 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 58,784 psi | 90% | 3432 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 54,911 psi | 84% | 3428 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 54,911 psi | 84% | 3428 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 55,143 psi | 85% | 3360 fps | 95.9% |
| Accurate 4064 | <<locked>> | 88% | 55,187 psi | 85% | 3428 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 55,912 psi | 86% | 3510 fps | 99.1% |
| ADI AR 2206H | <<locked>> | 86% | 58,610 psi | 90% | 3524 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 90% | 56,231 psi | 87% | 3461 fps | 99.4% |
| ADI Benchmark 8208 | <<locked>> | 84% | 57,232 psi | 88% | 3468 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 58,639 psi | 90% | 3445 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 55,114 psi | 85% | 3589 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 56,478 psi | 87% | 3484 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 56,898 psi | 88% | 3510 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 98% | 56,652 psi | 87% | 3579 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 94% | 58,378 psi | 90% | 3622 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 43,874 psi | 67% | 3317 fps | 98.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 50,169 psi | 77% | 3520 fps | 98.3% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 55,013 psi | 85% | 3465 fps | 99.1% |
| Bofors RP3 | <<locked>> | 90% | 57,493 psi | 88% | 3501 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 57,290 psi | 88% | 3461 fps | 96.6% |
| Hodgdon Benchmark | <<locked>> | 84% | 58,769 psi | 90% | 3448 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 57,232 psi | 88% | 3491 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 58,218 psi | 90% | 3514 fps | 99% |
| Hodgdon H414 | <<locked>> | 96% | 58,784 psi | 90% | 3573 fps | 97.6% |
| Hodgdon H4350 | <<locked>> | 94% | 58,610 psi | 90% | 3527 fps | 96.2% |
| Hodgdon H4895 | <<locked>> | 84% | 55,506 psi | 85% | 3474 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 56,971 psi | 88% | 3497 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 55,593 psi | 86% | 3507 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 55,666 psi | 86% | 3537 fps | 96.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,650 psi | 55% | 2231 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 56,811 psi | 87% | 3474 fps | 99.9% |
| IMR 3031 | <<locked>> | 84% | 55,593 psi | 86% | 3461 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 55,405 psi | 85% | 3438 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 86% | 55,230 psi | 85% | 3409 fps | 96.8% |
| IMR 4350 | <<locked>> | 98% | 58,001 psi | 89% | 3488 fps | 96.8% |
| IMR 4451 Enduron | <<locked>> | 92% | 55,564 psi | 85% | 3438 fps | 96.8% |
| IMR 4831 | <<locked>> | 98% | 56,347 psi | 87% | 3501 fps | 99.2% |
| IMR 4895 | <<locked>> | 88% | 58,334 psi | 90% | 3547 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 84% | 57,232 psi | 88% | 3468 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 55,114 psi | 85% | 3432 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 57,392 psi | 88% | 3438 fps | 99.8% |
| Lovex S062 | <<locked>> | 88% | 55,608 psi | 86% | 3438 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 58,769 psi | 90% | 3491 fps | 98.6% |
| Lovex S070 | <<locked>> | 96% | 56,536 psi | 87% | 3468 fps | 97.3% |
| Norma 201 | <<locked>> | 86% | 57,130 psi | 88% | 3458 fps | 100% |
| Norma 202 | <<locked>> | 86% | 57,711 psi | 89% | 3461 fps | 100% |
| Norma 203B | <<locked>> | 88% | 56,086 psi | 86% | 3491 fps | 99.7% |
| Norma URP | <<locked>> | 98% | 58,407 psi | 90% | 3560 fps | 99.3% |
| Ramshot Big Game | <<locked>> | 88% | 57,348 psi | 88% | 3517 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 98% | 57,377 psi | 88% | 3550 fps | 98.1% |
| Ramshot TAC | <<locked>> | 84% | 57,754 psi | 89% | 3478 fps | 98.6% |
| Ramshot Wild Boar | <<locked>> | 84% | 57,609 psi | 89% | 3501 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 82% | 58,189 psi | 90% | 3461 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,201 psi | 56% | 2283 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 58,523 psi | 90% | 3491 fps | 98% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 57,754 psi | 89% | 3586 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 58,001 psi | 89% | 3625 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 55,912 psi | 86% | 3530 fps | 99% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 54,969 psi | 85% | 3560 fps | 98.7% |
| Rottweil R 901 | <<locked>> | 84% | 57,798 psi | 89% | 3445 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 57,682 psi | 89% | 3458 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 57,334 psi | 88% | 3491 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 94% | 57,290 psi | 88% | 3461 fps | 96.6% |
| Shooters World Long Rifle | <<locked>> | 96% | 58,769 psi | 90% | 3491 fps | 98.6% |
| Shooters World Match Rifle | <<locked>> | 84% | 55,114 psi | 85% | 3432 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 55,608 psi | 86% | 3438 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 56,536 psi | 87% | 3468 fps | 97.3% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 55,666 psi | 86% | 3497 fps | 99.7% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 56,434 psi | 87% | 3451 fps | 98.7% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 57,000 psi | 88% | 3481 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 58,189 psi | 90% | 3392 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 55,434 psi | 85% | 3333 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 55,419 psi | 85% | 3373 fps | 96.9% |
| Somchem S335 | <<locked>> | 86% | 57,856 psi | 89% | 3386 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 56,072 psi | 86% | 3442 fps | 99.7% |
| Somchem S355 | <<locked>> | 92% | 57,406 psi | 88% | 3491 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 57,203 psi | 88% | 3566 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 57,551 psi | 89% | 3350 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 58,494 psi | 90% | 3373 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 57,609 psi | 89% | 3422 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 58,407 psi | 90% | 3435 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 55,317 psi | 85% | 3402 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 57,101 psi | 88% | 3494 fps | 99.2% |
| Vihtavuori N530 | <<locked>> | 84% | 57,943 psi | 89% | 3468 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 56,724 psi | 87% | 3425 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 56,463 psi | 87% | 3497 fps | 99% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 48,631 psi | 75% | 3409 fps | 98.5% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 57,624 psi | 89% | 3465 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 58,421 psi | 90% | 3520 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 58,784 psi | 90% | 3573 fps | 97.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 39,581 psi | 61% | 3317 fps | 98.6% |
| Winchester StaBALL Match | <<locked>> | 86% | 57,290 psi | 88% | 3491 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% | 52,083 psi | 80% | 3301 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 45,165 psi | 69% | 3205 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,068 psi | 79% | 3363 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,068 psi | 79% | 3363 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 51,430 psi | 79% | 3291 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 42,656 psi | 66% | 3192 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 39,291 psi | 60% | 3159 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 48,341 psi | 74% | 3327 fps | 98.8% |
| ADI AR 2208 | <<locked>> | 80% | 40,886 psi | 63% | 3140 fps | 96.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,430 psi | 78% | 3343 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 80% | 51,140 psi | 79% | 3330 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,483 psi | 68% | 3356 fps | 97.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,915 psi | 63% | 3166 fps | 98.1% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,976 psi | 68% | 3245 fps | 97.5% |
| Alliant Reloder-16 | <<locked>> | 86% | 38,450 psi | 59% | 3169 fps | 95.2% |
| Alliant Reloder-17 | 61.7 gr | 80% | 35,592 psi | 55% | 3110 fps | 96% |
| Alliant Reloder-23 | <<locked>> | 92% | 33,765 psi | 52% | 3041 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 94% | 39,987 psi | 62% | 3271 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,877 psi | 74% | 3323 fps | 97.9% |
| Bofors RP3 | <<locked>> | 80% | 40,915 psi | 63% | 3169 fps | 98.2% |
| Bofors RP7 | <<locked>> | 90% | 50,372 psi | 77% | 3330 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,924 psi | 80% | 3330 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 49,937 psi | 77% | 3363 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 80% | 41,510 psi | 64% | 3169 fps | 95.5% |
| Hodgdon H414 | <<locked>> | 90% | 47,761 psi | 73% | 3356 fps | 95% |
| Hodgdon H4350 | <<locked>> | 92% | 54,897 psi | 84% | 3458 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 48,863 psi | 75% | 3343 fps | 99.2% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 33,315 psi | 51% | 2979 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 45,136 psi | 69% | 3301 fps | 99% |
| Hodgdon Superformance | <<locked>> | 92% | 51,532 psi | 79% | 3455 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,455 psi | 41% | 2001 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,760 psi | 72% | 3281 fps | 98.9% |
| IMR 3031 | <<locked>> | 80% | 48,776 psi | 75% | 3343 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,946 psi | 66% | 3182 fps | 97.4% |
| IMR 4166 Enduron | <<locked>> | 82% | 48,515 psi | 75% | 3274 fps | 95.1% |
| IMR 4350 | <<locked>> | 94% | 51,053 psi | 79% | 3360 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 88% | 49,023 psi | 75% | 3307 fps | 95.2% |
| IMR 4831 | <<locked>> | 88% | 40,321 psi | 62% | 3169 fps | 95.9% |
| IMR 4895 | <<locked>> | 80% | 45,092 psi | 69% | 3284 fps | 98.3% |
| IMR 8208 XBR | <<locked>> | 80% | 50,430 psi | 78% | 3343 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 80% | 47,906 psi | 74% | 3304 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,834 psi | 74% | 3255 fps | 98.8% |
| Lovex S062 | <<locked>> | 80% | 43,163 psi | 66% | 3192 fps | 98.9% |
| Lovex S065 | <<locked>> | 86% | 42,946 psi | 66% | 3173 fps | 95% |
| Lovex S070 | <<locked>> | 92% | 49,574 psi | 76% | 3333 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 47,253 psi | 73% | 3274 fps | 99.4% |
| Norma 202 | <<locked>> | 80% | 47,688 psi | 73% | 3284 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,352 psi | 67% | 3232 fps | 97.9% |
| Norma URP | <<locked>> | 86% | 39,175 psi | 60% | 3159 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 43,265 psi | 67% | 3241 fps | 97.7% |
| Ramshot Hunter | <<locked>> | 92% | 46,847 psi | 72% | 3343 fps | 95.8% |
| Ramshot TAC | <<locked>> | 80% | 50,618 psi | 78% | 3340 fps | 97.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 50,343 psi | 77% | 3366 fps | 99.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 54,346 psi | 84% | 3396 fps | 99.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,847 psi | 41% | 2047 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 47,935 psi | 74% | 3287 fps | 95.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,862 psi | 72% | 3373 fps | 98% |
| ReloadSwiss RS 60 | 61.7 gr | 80% | 37,884 psi | 58% | 3196 fps | 99% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 41,930 psi | 65% | 3245 fps | 95.9% |
| ReloadSwiss RS 70 | 69 gr | 88% | 41,553 psi | 64% | 3255 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 51,140 psi | 79% | 3330 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,788 psi | 69% | 3212 fps | 99.1% |
| Rottweil R 903 | <<locked>> | 80% | 38,377 psi | 59% | 3100 fps | 97.2% |
| Rottweil R 907 | <<locked>> | 90% | 50,372 psi | 77% | 3330 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 86% | 42,946 psi | 66% | 3173 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,906 psi | 74% | 3304 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 43,163 psi | 66% | 3192 fps | 98.9% |
| Shooters World SW4350 | <<locked>> | 92% | 49,574 psi | 76% | 3333 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,552 psi | 61% | 3156 fps | 96.7% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 49,008 psi | 75% | 3310 fps | 97.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,891 psi | 72% | 3284 fps | 98.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,341 psi | 74% | 3225 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,495 psi | 62% | 3054 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 48,617 psi | 75% | 3241 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 48,066 psi | 74% | 3219 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 48,704 psi | 75% | 3304 fps | 98.9% |
| Somchem S355 | <<locked>> | 80% | 39,102 psi | 60% | 3107 fps | 97.2% |
| Somchem S365 | <<locked>> | 82% | 30,632 psi | 47% | 2956 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 54,346 psi | 84% | 3301 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 48,733 psi | 75% | 3219 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,657 psi | 69% | 3199 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,121 psi | 69% | 3202 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,217 psi | 57% | 3031 fps | 98% |
| Vihtavuori N160 | <<locked>> | 86% | 40,872 psi | 63% | 3163 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 50,662 psi | 78% | 3337 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 80% | 43,656 psi | 67% | 3179 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 40,219 psi | 62% | 3156 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 92% | 37,144 psi | 57% | 3140 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,069 psi | 51% | 2927 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 50,821 psi | 78% | 3389 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 47,950 psi | 74% | 3363 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 96% | 34,432 psi | 53% | 3150 fps | 96.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,499 psi | 72% | 3287 fps | 99% |
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 111 powders for 7 mm PRC loaded with the .284 | 100gr | Sierra VarmintKing. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,625 fps; across all powders the maximum-charge window runs from 2,231 fps to 3,625 fps. Accurate 3100 gives the best case fill at 100 %, and 111 of the 111 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 100.0 gr projectile in 0.284" calls for a 1:15.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-19 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, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for 7 mm PRC with the .284 | 100gr | Sierra VarmintKing they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2209, Alliant Reloder-19, Alliant Reloder-22 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.