Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 100gr | Sierra VarmintKing bullet and 89 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: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 84% | 51,822 psi | 85% | 3376 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 53,998 psi | 89% | 3412 fps | 96.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 46,905 psi | 77% | 3353 fps | 96.6% |
| Accurate 4064 | <<locked>> | 86% | 52,243 psi | 86% | 3432 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 52,605 psi | 86% | 3510 fps | 99% |
| ADI AR 2206H | <<locked>> | 82% | 51,808 psi | 85% | 3458 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 88% | 53,011 psi | 87% | 3458 fps | 99.4% |
| ADI Benchmark 8208 | <<locked>> | 82% | 53,998 psi | 89% | 3465 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 55,100 psi | 90% | 3445 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 51,576 psi | 85% | 3576 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 53,447 psi | 88% | 3488 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 86% | 53,809 psi | 88% | 3510 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 96% | 53,461 psi | 88% | 3583 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 92% | 54,766 psi | 90% | 3619 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 44,106 psi | 72% | 3386 fps | 99.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 50,662 psi | 83% | 3596 fps | 98.9% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 51,663 psi | 85% | 3458 fps | 99% |
| Bofors RP3 | <<locked>> | 88% | 54,041 psi | 89% | 3497 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 53,940 psi | 89% | 3458 fps | 96.5% |
| Hodgdon BL-C2 | <<locked>> | 82% | 53,954 psi | 89% | 3494 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 54,984 psi | 90% | 3514 fps | 99% |
| Hodgdon H414 | <<locked>> | 92% | 51,619 psi | 85% | 3497 fps | 96.7% |
| Hodgdon H4895 | <<locked>> | 82% | 52,330 psi | 86% | 3471 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 53,693 psi | 88% | 3501 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 52,301 psi | 86% | 3504 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 92% | 51,967 psi | 85% | 3527 fps | 96.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,578 psi | 58% | 2260 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 53,519 psi | 88% | 3474 fps | 99.9% |
| IMR 3031 | <<locked>> | 82% | 52,489 psi | 86% | 3461 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 52,446 psi | 86% | 3438 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 84% | 52,098 psi | 86% | 3406 fps | 96.6% |
| IMR 4350 | <<locked>> | 96% | 54,795 psi | 90% | 3491 fps | 96.7% |
| IMR 4451 Enduron | <<locked>> | 90% | 52,359 psi | 86% | 3435 fps | 96.6% |
| IMR 4831 | <<locked>> | 96% | 53,200 psi | 87% | 3504 fps | 99.2% |
| IMR 4895 | <<locked>> | 84% | 51,706 psi | 85% | 3481 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 82% | 53,998 psi | 89% | 3465 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 51,663 psi | 85% | 3428 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 54,389 psi | 89% | 3438 fps | 99.8% |
| Lovex S062 | <<locked>> | 86% | 52,417 psi | 86% | 3435 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 52,141 psi | 86% | 3428 fps | 97.9% |
| Lovex S070 | <<locked>> | 94% | 53,243 psi | 87% | 3468 fps | 97.2% |
| Norma 201 | <<locked>> | 84% | 53,896 psi | 88% | 3458 fps | 100% |
| Norma 202 | <<locked>> | 84% | 54,636 psi | 90% | 3465 fps | 100% |
| Norma 203B | <<locked>> | 86% | 53,113 psi | 87% | 3494 fps | 99.7% |
| Norma MRPᴾ | <<locked>> | 100% | 49,763 psi | 82% | 3533 fps | 96.2% |
| Norma URP | <<locked>> | 94% | 51,488 psi | 85% | 3494 fps | 98.8% |
| Ramshot Big Game | <<locked>> | 86% | 53,751 psi | 88% | 3514 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 96% | 54,143 psi | 89% | 3550 fps | 98% |
| Ramshot TAC | <<locked>> | 82% | 54,273 psi | 89% | 3471 fps | 98.4% |
| Ramshot Wild Boar | <<locked>> | 82% | 54,331 psi | 89% | 3501 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,129 psi | 59% | 2313 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 51,474 psi | 85% | 3419 fps | 97.1% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 54,244 psi | 89% | 3583 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 54,462 psi | 89% | 3625 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 52,489 psi | 86% | 3527 fps | 98.9% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 51,619 psi | 85% | 3553 fps | 98.6% |
| Rottweil R 901 | <<locked>> | 82% | 54,766 psi | 90% | 3448 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 54,621 psi | 90% | 3458 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 54,143 psi | 89% | 3494 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 92% | 53,940 psi | 89% | 3458 fps | 96.5% |
| Shooters World Long Rifle | <<locked>> | 92% | 52,141 psi | 86% | 3428 fps | 97.9% |
| Shooters World Match Rifle | <<locked>> | 82% | 51,663 psi | 85% | 3428 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 52,417 psi | 86% | 3435 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 53,243 psi | 87% | 3468 fps | 97.2% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 52,388 psi | 86% | 3497 fps | 99.6% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 52,953 psi | 87% | 3445 fps | 98.6% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 53,766 psi | 88% | 3481 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 54,998 psi | 90% | 3392 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 52,388 psi | 86% | 3333 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 52,083 psi | 86% | 3366 fps | 96.7% |
| Somchem S335 | <<locked>> | 84% | 54,636 psi | 90% | 3386 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 52,576 psi | 86% | 3435 fps | 99.6% |
| Somchem S355 | <<locked>> | 90% | 54,331 psi | 89% | 3494 fps | 99.9% |
| Somchem S365 | <<locked>> | 98% | 53,563 psi | 88% | 3563 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 53,084 psi | 87% | 3478 fps | 96.4% |
| Vihtavuori N133 | <<locked>> | 82% | 52,040 psi | 85% | 3323 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 54,447 psi | 89% | 3422 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 51,779 psi | 85% | 3376 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 52,272 psi | 86% | 3406 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 53,911 psi | 89% | 3494 fps | 99.1% |
| Vihtavuori N530 | <<locked>> | 82% | 54,549 psi | 90% | 3465 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 53,461 psi | 88% | 3422 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 53,098 psi | 87% | 3497 fps | 98.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 49,211 psi | 81% | 3481 fps | 99.1% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 54,186 psi | 89% | 3465 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 54,752 psi | 90% | 3514 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 51,851 psi | 85% | 3504 fps | 96.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 39,798 psi | 65% | 3396 fps | 99.3% |
| Winchester StaBALL Match | <<locked>> | 84% | 53,925 psi | 89% | 3488 fps | 99.9% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 45,339 psi | 74% | 3258 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 50,575 psi | 83% | 3350 fps | 95.4% |
| Accurate 3100 | <<locked>> | 98% | 43,642 psi | 72% | 3281 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 42,844 psi | 70% | 3251 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 36,854 psi | 61% | 3156 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 48,501 psi | 80% | 3389 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 80% | 41,205 psi | 68% | 3202 fps | 97.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,575 psi | 83% | 3399 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 51,576 psi | 85% | 3386 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,788 psi | 74% | 3428 fps | 98.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,278 psi | 68% | 3235 fps | 98.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,135 psi | 72% | 3307 fps | 98.1% |
| Alliant Reloder-16 | 60.6 gr | 84% | 36,390 psi | 60% | 3169 fps | 95.1% |
| Alliant Reloder-17 | 62.1 gr | 80% | 35,868 psi | 59% | 3182 fps | 96.8% |
| Alliant Reloder-23 | <<locked>> | 90% | 31,981 psi | 53% | 3045 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 94% | 40,466 psi | 66% | 3350 fps | 96.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 48,211 psi | 79% | 3389 fps | 98.5% |
| Bofors RP3 | <<locked>> | 80% | 41,278 psi | 68% | 3235 fps | 98.7% |
| Bofors RP7 | <<locked>> | 90% | 50,734 psi | 83% | 3396 fps | 95.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 50,299 psi | 83% | 3425 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 41,872 psi | 69% | 3238 fps | 96.3% |
| Hodgdon H414 | <<locked>> | 90% | 48,269 psi | 79% | 3432 fps | 95.8% |
| Hodgdon H4895 | <<locked>> | 80% | 48,979 psi | 80% | 3402 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 33,605 psi | 55% | 3048 fps | 96% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 45,513 psi | 75% | 3369 fps | 99.4% |
| Hodgdon Superformance | <<locked>> | 90% | 48,385 psi | 79% | 3451 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,614 psi | 44% | 2034 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,920 psi | 77% | 3343 fps | 99.3% |
| IMR 3031 | <<locked>> | 80% | 48,950 psi | 80% | 3402 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,279 psi | 71% | 3248 fps | 98% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,759 psi | 75% | 3271 fps | 95% |
| IMR 4350 | <<locked>> | 92% | 48,080 psi | 79% | 3356 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 86% | 46,238 psi | 76% | 3304 fps | 95% |
| IMR 4831 | <<locked>> | 86% | 37,898 psi | 62% | 3166 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 45,208 psi | 74% | 3346 fps | 98.7% |
| IMR 8208 XBR | <<locked>> | 80% | 50,575 psi | 83% | 3399 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 48,269 psi | 79% | 3363 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,008 psi | 79% | 3314 fps | 99.2% |
| Lovex S062 | <<locked>> | 80% | 43,337 psi | 71% | 3251 fps | 99.2% |
| Lovex S065 | <<locked>> | 86% | 43,265 psi | 71% | 3241 fps | 95.8% |
| Lovex S070 | <<locked>> | 90% | 46,862 psi | 77% | 3337 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 47,427 psi | 78% | 3333 fps | 99.7% |
| Norma 202 | <<locked>> | 80% | 48,051 psi | 79% | 3343 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,526 psi | 71% | 3294 fps | 98.4% |
| Norma MRP | <<locked>> | 98% | 46,427 psi | 76% | 3458 fps | 95.1% |
| Norma URP | <<locked>> | 84% | 36,811 psi | 60% | 3153 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 43,598 psi | 72% | 3307 fps | 98.3% |
| Ramshot Hunter | <<locked>> | 90% | 44,077 psi | 72% | 3340 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 50,923 psi | 84% | 3406 fps | 97.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 50,676 psi | 83% | 3428 fps | 99.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,847 psi | 44% | 2077 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 45,005 psi | 74% | 3281 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 47,224 psi | 78% | 3442 fps | 98.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 38,145 psi | 63% | 3268 fps | 99.5% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 39,407 psi | 65% | 3241 fps | 95.7% |
| ReloadSwiss RS 70 | 69.4 gr | 88% | 41,785 psi | 69% | 3327 fps | 96% |
| Rottweil R 901 | <<locked>> | 80% | 51,547 psi | 85% | 3389 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 45,179 psi | 74% | 3274 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 80% | 38,740 psi | 64% | 3166 fps | 97.9% |
| Rottweil R 907 | <<locked>> | 90% | 50,734 psi | 83% | 3396 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 86% | 43,265 psi | 71% | 3241 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 48,269 psi | 79% | 3363 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 43,337 psi | 71% | 3251 fps | 99.2% |
| Shooters World SW4350 | <<locked>> | 90% | 46,862 psi | 77% | 3337 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,900 psi | 66% | 3225 fps | 97.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 49,342 psi | 81% | 3373 fps | 98% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 47,239 psi | 78% | 3350 fps | 99% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,486 psi | 80% | 3278 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,625 psi | 67% | 3110 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 45,730 psi | 75% | 3238 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 48,225 psi | 79% | 3274 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 49,037 psi | 81% | 3366 fps | 99.2% |
| Somchem S355 | <<locked>> | 80% | 39,262 psi | 64% | 3173 fps | 97.8% |
| Somchem S365 | <<locked>> | 80% | 28,819 psi | 47% | 2953 fps | 95.2% |
| Somchem S385 | <<locked>> | 98% | 49,617 psi | 81% | 3412 fps | 95.5% |
| Vihtavuori N133 | <<locked>> | 80% | 48,892 psi | 80% | 3271 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,889 psi | 74% | 3255 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,484 psi | 75% | 3261 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,536 psi | 62% | 3094 fps | 98.6% |
| Vihtavuori N160 | <<locked>> | 84% | 38,450 psi | 63% | 3163 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 50,995 psi | 84% | 3399 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 43,976 psi | 72% | 3241 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 37,884 psi | 62% | 3156 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 90% | 34,867 psi | 57% | 3140 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,257 psi | 55% | 2989 fps | 96.2% |
| Winchester 748 | <<locked>> | 80% | 51,213 psi | 84% | 3451 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 48,269 psi | 79% | 3432 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 94% | 32,561 psi | 53% | 3150 fps | 96.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,847 psi | 77% | 3353 fps | 99.3% |
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 110 powders for 7 mm Blaser Mag. 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 2,260 fps to 3,625 fps. Accurate 3100 gives the best case fill at 100 %, and 110 of the 110 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 58–90 %, 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, ADI AR 2213 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 7 mm Blaser 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, ADI AR 2213, Alliant Reloder-22, Alliant Reloder-25 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.