Load Specifications
Load data in caliber 7 mm Weath. Mag. with .284 | 100gr | Sierra VarmintKing 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, 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 2495 | <<locked>> | 84% | 55,056 psi | 86% | 3383 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 57,116 psi | 90% | 3432 fps | 96.8% |
| Accurate 3100ᴾ | <<locked>> | 100% | 50,865 psi | 80% | 3379 fps | 97.3% |
| Accurate 4064 | <<locked>> | 86% | 55,550 psi | 87% | 3442 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 56,550 psi | 89% | 3530 fps | 99.4% |
| ADI AR 2206H | <<locked>> | 82% | 54,607 psi | 86% | 3465 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 88% | 55,985 psi | 88% | 3465 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 82% | 56,797 psi | 89% | 3468 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 54,955 psi | 86% | 3593 fps | 99.6% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 55,332 psi | 87% | 3481 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 56,637 psi | 89% | 3494 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 56,797 psi | 89% | 3517 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 96% | 57,101 psi | 89% | 3599 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 90% | 54,824 psi | 86% | 3566 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 57,072 psi | 89% | 3547 fps | 96.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 47,601 psi | 75% | 3406 fps | 99.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 55,027 psi | 86% | 3619 fps | 99.3% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 54,795 psi | 86% | 3468 fps | 99.3% |
| Bofors RP3 | <<locked>> | 88% | 57,551 psi | 90% | 3510 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 57,087 psi | 89% | 3478 fps | 97% |
| Hodgdon BL-C2 | <<locked>> | 82% | 57,116 psi | 90% | 3497 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 54,447 psi | 85% | 3458 fps | 98.8% |
| Hodgdon H414 | <<locked>> | 92% | 55,158 psi | 86% | 3514 fps | 97.3% |
| Hodgdon H4895 | <<locked>> | 82% | 55,187 psi | 86% | 3478 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 57,421 psi | 90% | 3510 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 55,521 psi | 87% | 3510 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 55,680 psi | 87% | 3550 fps | 97.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,839 psi | 56% | 2260 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 56,463 psi | 88% | 3481 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 55,434 psi | 87% | 3465 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 55,361 psi | 87% | 3451 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 84% | 54,665 psi | 86% | 3415 fps | 97.1% |
| IMR 4350 | <<locked>> | 94% | 54,534 psi | 85% | 3438 fps | 96.6% |
| IMR 4451 Enduron | <<locked>> | 90% | 55,230 psi | 87% | 3445 fps | 97.1% |
| IMR 4831 | <<locked>> | 96% | 57,014 psi | 89% | 3520 fps | 99.5% |
| IMR 4895 | <<locked>> | 84% | 54,766 psi | 86% | 3491 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 82% | 56,797 psi | 89% | 3468 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 55,085 psi | 86% | 3438 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 57,029 psi | 89% | 3442 fps | 99.9% |
| Lovex S062 | <<locked>> | 86% | 55,434 psi | 87% | 3448 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 55,303 psi | 87% | 3442 fps | 98.4% |
| Lovex S070 | <<locked>> | 94% | 56,608 psi | 89% | 3484 fps | 97.7% |
| Norma 201 | <<locked>> | 84% | 56,753 psi | 89% | 3465 fps | 100% |
| Norma 202 | <<locked>> | 84% | 57,580 psi | 90% | 3468 fps | 100% |
| Norma 203B | <<locked>> | 86% | 56,057 psi | 88% | 3497 fps | 99.8% |
| Norma MRPᴾ | <<locked>> | 100% | 53,940 psi | 85% | 3566 fps | 97% |
| Norma URP | <<locked>> | 94% | 55,129 psi | 86% | 3510 fps | 99.2% |
| Ramshot Big Game | <<locked>> | 86% | 57,203 psi | 90% | 3524 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 94% | 54,157 psi | 85% | 3497 fps | 97.9% |
| Ramshot TAC | <<locked>> | 82% | 57,232 psi | 90% | 3481 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 82% | 57,305 psi | 90% | 3504 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,564 psi | 57% | 2313 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 54,404 psi | 85% | 3432 fps | 97.6% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 53,954 psi | 85% | 3527 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 54,375 psi | 85% | 3570 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 56,536 psi | 89% | 3547 fps | 99.3% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 55,361 psi | 87% | 3576 fps | 99.1% |
| Rottweil R 901 | <<locked>> | 82% | 57,450 psi | 90% | 3451 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 57,435 psi | 90% | 3465 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 57,638 psi | 90% | 3507 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 56,173 psi | 88% | 3530 fps | 96% |
| Rottweil R 907 | <<locked>> | 92% | 57,087 psi | 89% | 3478 fps | 97% |
| Shooters World Long Rifle | <<locked>> | 92% | 55,303 psi | 87% | 3442 fps | 98.4% |
| Shooters World Match Rifle | <<locked>> | 82% | 55,085 psi | 86% | 3438 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 55,434 psi | 87% | 3448 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 56,608 psi | 89% | 3484 fps | 97.7% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 55,608 psi | 87% | 3504 fps | 99.8% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 56,144 psi | 88% | 3458 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 56,768 psi | 89% | 3488 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 57,682 psi | 90% | 3399 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 55,288 psi | 87% | 3340 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 55,288 psi | 87% | 3386 fps | 97.3% |
| Somchem S335 | <<locked>> | 84% | 57,334 psi | 90% | 3386 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 55,753 psi | 87% | 3448 fps | 99.8% |
| Somchem S355 | <<locked>> | 90% | 57,450 psi | 90% | 3501 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 54,085 psi | 85% | 3517 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 56,942 psi | 89% | 3501 fps | 97.1% |
| Vihtavuori N133 | <<locked>> | 82% | 54,578 psi | 86% | 3323 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 57,682 psi | 90% | 3428 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 54,752 psi | 86% | 3383 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 55,463 psi | 87% | 3415 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 57,493 psi | 90% | 3510 fps | 99.4% |
| Vihtavuori N530 | <<locked>> | 82% | 57,363 psi | 90% | 3468 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 56,594 psi | 89% | 3428 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 56,710 psi | 89% | 3510 fps | 99.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 53,127 psi | 83% | 3497 fps | 99.4% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 53,853 psi | 84% | 3409 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 55,390 psi | 87% | 3524 fps | 97.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 43,062 psi | 67% | 3428 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 84% | 56,985 psi | 89% | 3497 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 2495 | <<locked>> | 80% | 48,312 psi | 76% | 3264 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 49,835 psi | 78% | 3294 fps | 95.1% |
| Accurate 3100 | <<locked>> | 96% | 43,990 psi | 69% | 3235 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 45,658 psi | 72% | 3258 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 39,682 psi | 62% | 3173 fps | 95.9% |
| ADI AR 2206H | <<locked>> | 80% | 51,082 psi | 80% | 3396 fps | 99.4% |
| ADI AR 2208 | <<locked>> | 80% | 43,410 psi | 68% | 3209 fps | 97.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 53,171 psi | 83% | 3402 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 47,601 psi | 75% | 3438 fps | 98.5% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 51,808 psi | 81% | 3412 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,627 psi | 68% | 3238 fps | 98.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,659 psi | 73% | 3317 fps | 98.4% |
| Alliant Reloder-16 | <<locked>> | 84% | 38,653 psi | 61% | 3186 fps | 95.8% |
| Alliant Reloder-17 | 65.6 gr | 80% | 38,334 psi | 60% | 3199 fps | 97.5% |
| Alliant Reloder-19 | <<locked>> | 98% | 53,330 psi | 84% | 3474 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 90% | 34,142 psi | 54% | 3058 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 92% | 40,625 psi | 64% | 3294 fps | 95.8% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 51,082 psi | 80% | 3402 fps | 98.8% |
| Bofors RP3 | <<locked>> | 80% | 43,859 psi | 69% | 3245 fps | 99% |
| Bofors RP7 | <<locked>> | 88% | 50,212 psi | 79% | 3340 fps | 95.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 53,200 psi | 83% | 3428 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 44,425 psi | 70% | 3248 fps | 96.8% |
| Hodgdon H414 | <<locked>> | 88% | 48,095 psi | 75% | 3373 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 51,663 psi | 81% | 3409 fps | 99.7% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 33,475 psi | 52% | 2992 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 48,312 psi | 76% | 3373 fps | 99.6% |
| Hodgdon Superformance | <<locked>> | 88% | 48,051 psi | 75% | 3392 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,789 psi | 42% | 2031 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 49,429 psi | 77% | 3346 fps | 99.5% |
| IMR 3031 | <<locked>> | 80% | 51,895 psi | 81% | 3406 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,629 psi | 72% | 3255 fps | 98.3% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,935 psi | 75% | 3278 fps | 95.5% |
| IMR 4350 | <<locked>> | 92% | 51,039 psi | 80% | 3369 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 86% | 48,660 psi | 76% | 3314 fps | 95.6% |
| IMR 4831 | <<locked>> | 84% | 37,971 psi | 60% | 3110 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 47,863 psi | 75% | 3353 fps | 99% |
| IMR 8208 XBR | <<locked>> | 80% | 53,171 psi | 83% | 3402 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 51,227 psi | 80% | 3369 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 50,227 psi | 79% | 3317 fps | 99.4% |
| Lovex S062 | <<locked>> | 80% | 45,716 psi | 72% | 3258 fps | 99.5% |
| Lovex S065 | <<locked>> | 84% | 42,830 psi | 67% | 3182 fps | 95.5% |
| Lovex S070 | <<locked>> | 88% | 46,572 psi | 73% | 3284 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 50,082 psi | 78% | 3340 fps | 99.8% |
| Norma 202 | <<locked>> | 80% | 50,546 psi | 79% | 3346 fps | 100% |
| Norma 203B | <<locked>> | 80% | 46,035 psi | 72% | 3301 fps | 98.7% |
| Norma MRP | <<locked>> | 98% | 50,024 psi | 78% | 3481 fps | 96% |
| Norma URP | <<locked>> | 84% | 39,494 psi | 62% | 3169 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 46,340 psi | 73% | 3317 fps | 98.7% |
| Ramshot Hunter | <<locked>> | 88% | 43,976 psi | 69% | 3284 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 53,476 psi | 84% | 3412 fps | 98.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 53,490 psi | 84% | 3438 fps | 99.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,195 psi | 43% | 2077 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 44,657 psi | 70% | 3228 fps | 95.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 50,314 psi | 79% | 3455 fps | 98.9% |
| ReloadSwiss RS 60 | 65.6 gr | 80% | 40,741 psi | 64% | 3281 fps | 99.7% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 39,465 psi | 62% | 3182 fps | 95.4% |
| ReloadSwiss RS 70 | 71.6 gr | 86% | 41,539 psi | 65% | 3268 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 53,998 psi | 85% | 3392 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 47,601 psi | 75% | 3281 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 80% | 41,292 psi | 65% | 3179 fps | 98.3% |
| Rottweil R 905 | <<locked>> | 98% | 52,344 psi | 82% | 3455 fps | 95% |
| Rottweil R 907 | <<locked>> | 88% | 50,212 psi | 79% | 3340 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 84% | 42,830 psi | 67% | 3182 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 51,227 psi | 80% | 3369 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 45,716 psi | 72% | 3258 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 88% | 46,572 psi | 73% | 3284 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 42,409 psi | 66% | 3232 fps | 97.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 52,286 psi | 82% | 3386 fps | 98.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 49,792 psi | 78% | 3356 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 50,778 psi | 80% | 3281 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,743 psi | 67% | 3114 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 48,240 psi | 76% | 3248 fps | 95.7% |
| Somchem S335 | <<locked>> | 80% | 50,734 psi | 80% | 3278 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 51,967 psi | 81% | 3379 fps | 99.5% |
| Somchem S355 | <<locked>> | 80% | 41,698 psi | 65% | 3182 fps | 98.2% |
| Somchem S365 | <<locked>> | 80% | 30,879 psi | 48% | 2966 fps | 95.9% |
| Somchem S385 | <<locked>> | 96% | 49,864 psi | 78% | 3363 fps | 95.4% |
| Vihtavuori N133 | <<locked>> | 80% | 51,256 psi | 80% | 3271 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 47,456 psi | 74% | 3258 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 48,080 psi | 75% | 3264 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,856 psi | 62% | 3104 fps | 98.9% |
| Vihtavuori N160 | <<locked>> | 82% | 38,276 psi | 60% | 3104 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 53,606 psi | 84% | 3406 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 46,499 psi | 73% | 3245 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 40,509 psi | 63% | 3169 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 90% | 37,884 psi | 59% | 3159 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,360 psi | 55% | 3002 fps | 96.8% |
| Winchester 760 | <<locked>> | 88% | 48,298 psi | 76% | 3376 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 92% | 32,692 psi | 51% | 3097 fps | 95.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 49,661 psi | 78% | 3360 fps | 99.6% |
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 113 powders for 7 mm Weath. Mag. loaded with the .284 | 100gr | Sierra VarmintKing. Alliant Reloder-26 delivers the highest muzzle velocity at 3,619 fps; across all powders the maximum-charge window runs from 2,260 fps to 3,619 fps. Accurate 3100 gives the best case fill at 100 %, and 113 of the 113 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 100.0 gr projectile in 0.284" calls for a 1:15.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate High Country, Accurate MAGPRO 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 Weath. Mag. with the .284 | 100gr | Sierra VarmintKing they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate High Country, Accurate MAGPRO, ADI AR 2213 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.