Load Specifications
Load data in caliber 7 mm B.R. Rem. with .284 | 100gr | Sierra VarmintKing bullet and 31 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2207, Norma 200 and ReloadSwiss RS 36.
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 1680 | <<locked>> | 92% | 52,127 psi | 89% | 2864 fps | 99.5% |
| Accurate 2015ᴾ | <<locked>> | 100% | 40,538 psi | 69% | 2759 fps | 97.1% |
| Accurate LT-30 | <<locked>> | 98% | 52,344 psi | 89% | 2858 fps | 97.9% |
| Accurate LT-32 | <<locked>> | 98% | 52,997 psi | 90% | 2861 fps | 95.9% |
| ADI AR 2205 | <<locked>> | 84% | 51,938 psi | 88% | 2749 fps | 100% |
| ADI AR 2207 | <<locked>> | 96% | 50,401 psi | 86% | 2920 fps | 100% |
| ADI AR 2219ᴾ | <<locked>> | 100% | 52,663 psi | 90% | 2999 fps | 97.7% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 37,913 psi | 65% | 2782 fps | 98.7% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 47,195 psi | 80% | 2904 fps | 99.2% |
| Alliant Reloder-7 | <<locked>> | 96% | 52,823 psi | 90% | 2923 fps | 99.8% |
| Baschieri & Pellagri 106 | <<locked>> | 98% | 50,314 psi | 86% | 2844 fps | 97.8% |
| Hodgdon H322ᴾ | <<locked>> | 100% | 47,210 psi | 80% | 2907 fps | 96.7% |
| Hodgdon H335ᴾ | <<locked>> | 100% | 48,573 psi | 83% | 2930 fps | 95.8% |
| Hodgdon H4198 | <<locked>> | 94% | 51,692 psi | 88% | 2864 fps | 97.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 30,690 psi | 52% | 1749 fps | 100% |
| IMR 4198ᴾ | <<locked>> | 100% | 49,951 psi | 85% | 2897 fps | 99.8% |
| IMR 4227 | <<locked>> | 90% | 51,634 psi | 88% | 2851 fps | 100% |
| Lovex D060 | <<locked>> | 84% | 52,257 psi | 89% | 2897 fps | 99.9% |
| Lovex S053 | <<locked>> | 92% | 52,504 psi | 89% | 2841 fps | 100% |
| Norma 200 | <<locked>> | 98% | 50,604 psi | 86% | 2943 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 30,284 psi | 52% | 1788 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 90% | 50,981 psi | 87% | 2884 fps | 100% |
| Shooters World Buffalo Rifle | <<locked>> | 84% | 52,257 psi | 89% | 2897 fps | 99.9% |
| Shooters World SOCOM | <<locked>> | 84% | 52,924 psi | 90% | 2864 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 94% | 50,778 psi | 86% | 2661 fps | 100% |
| SNPE Vectan SP 10ᴾ | <<locked>> | 100% | 52,968 psi | 90% | 3002 fps | 96.8% |
| SNPE Vectan SP 3ᴾ | <<locked>> | 100% | 48,747 psi | 83% | 2910 fps | 98% |
| Vihtavuori N110 | <<locked>> | 86% | 52,460 psi | 89% | 2759 fps | 100% |
| Vihtavuori N120 | <<locked>> | 96% | 50,560 psi | 86% | 2874 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 45,832 psi | 78% | 2808 fps | 98.8% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 39,726 psi | 68% | 2697 fps | 96.6% |
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 1680 | <<locked>> | 80% | 35,389 psi | 60% | 2556 fps | 96.7% |
| Accurate 2015 | <<locked>> | 94% | 33,750 psi | 57% | 2612 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 90% | 41,220 psi | 70% | 2661 fps | 95.5% |
| Accurate LT-32 | <<locked>> | 96% | 50,024 psi | 85% | 2812 fps | 95.3% |
| ADI AR 2205 | <<locked>> | 80% | 46,195 psi | 79% | 2664 fps | 100% |
| ADI AR 2207 | 24.3 gr | 80% | 30,589 psi | 52% | 2533 fps | 98.8% |
| ADI AR 2219 | <<locked>> | 94% | 43,178 psi | 74% | 2831 fps | 95.7% |
| Alliant AR-Comp | <<locked>> | 92% | 29,733 psi | 51% | 2569 fps | 95.9% |
| Alliant Reloder-10x | <<locked>> | 86% | 30,647 psi | 52% | 2552 fps | 95.3% |
| Alliant Reloder-7 | <<locked>> | 80% | 32,474 psi | 55% | 2530 fps | 96.5% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 38,943 psi | 66% | 2641 fps | 95.2% |
| Hodgdon H322 | <<locked>> | 96% | 41,568 psi | 71% | 2799 fps | 95.2% |
| Hodgdon H335 | <<locked>> | 98% | 45,382 psi | 77% | 2874 fps | 95% |
| Hodgdon H4198 | <<locked>> | 88% | 42,989 psi | 73% | 2710 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,481 psi | 38% | 1562 fps | 100% |
| IMR 4198 | <<locked>> | 82% | 29,820 psi | 51% | 2464 fps | 95.7% |
| IMR 4227 | <<locked>> | 80% | 38,145 psi | 65% | 2615 fps | 99.3% |
| Lovex D060 | <<locked>> | 80% | 46,050 psi | 78% | 2789 fps | 99.4% |
| Lovex S053 | <<locked>> | 80% | 37,173 psi | 63% | 2585 fps | 100% |
| Norma 200 | 25.5 gr | 80% | 28,834 psi | 49% | 2490 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 21,973 psi | 37% | 1591 fps | 100% |
| ReloadSwiss RS 36 | 25.3 gr | 80% | 37,260 psi | 63% | 2638 fps | 99.1% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 46,050 psi | 78% | 2789 fps | 99.4% |
| Shooters World SOCOM | <<locked>> | 80% | 46,586 psi | 79% | 2766 fps | 99.8% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 35,201 psi | 60% | 2415 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 96% | 46,267 psi | 79% | 2887 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 38,072 psi | 65% | 2703 fps | 95.4% |
| Vihtavuori N110 | <<locked>> | 80% | 43,918 psi | 75% | 2635 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 30,806 psi | 52% | 2507 fps | 99.6% |
| Vihtavuori N130 | <<locked>> | 88% | 31,894 psi | 54% | 2520 fps | 95.3% |
| Vihtavuori N133 | <<locked>> | 96% | 35,056 psi | 60% | 2595 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 50 powders for 7 mm B.R. Rem. loaded with the .284 | 100gr | Sierra VarmintKing. SNPE Vectan SP 10 delivers the highest muzzle velocity at 3,002 fps; across all powders the maximum-charge window runs from 1,749 fps to 3,002 fps. Accurate 2015 gives the best case fill at 100 %, and 50 of the 50 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 49–90 %, 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 2015, Accurate 2460, Accurate 2495 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. ADI AR 2207, Norma 200, ReloadSwiss RS 36 rank at the top here: for 7 mm B.R. Rem. 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 2460, Accurate 2495, Accurate 2520 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.