Load Specifications
Load data in caliber 7 mm B.R. Rem. with .284 | 103gr | Sax KJG-SR bullet and 29 powders. The key underlying parameters are shown in the table above.
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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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 94% | 53,026 psi | 90% | 2792 fps | 99.4% |
| Accurate 2015ᴾ | <<locked>> | 100% | 38,101 psi | 65% | 2635 fps | 96.1% |
| Accurate LT-30 | <<locked>> | 98% | 49,951 psi | 85% | 2733 fps | 97.1% |
| Accurate No. 11 FS | <<locked>> | 82% | 52,170 psi | 89% | 2756 fps | 100% |
| ADI AR 2205 | <<locked>> | 86% | 52,866 psi | 90% | 2680 fps | 100% |
| ADI AR 2207 | <<locked>> | 98% | 50,749 psi | 86% | 2844 fps | 100% |
| ADI AR 2219ᴾ | <<locked>> | 100% | 49,879 psi | 85% | 2864 fps | 96.8% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 35,607 psi | 61% | 2648 fps | 97.8% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 44,440 psi | 76% | 2776 fps | 98.7% |
| Alliant Reloder-7 | <<locked>> | 96% | 49,951 psi | 85% | 2795 fps | 99.5% |
| Baschieri & Pellagri 106ᴾ | <<locked>> | 100% | 50,981 psi | 87% | 2769 fps | 97.6% |
| Hodgdon H4198 | <<locked>> | 96% | 51,967 psi | 88% | 2779 fps | 96.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 29,994 psi | 51% | 1673 fps | 100% |
| IMR 4198ᴾ | <<locked>> | 100% | 47,529 psi | 81% | 2769 fps | 99.5% |
| IMR 4227 | <<locked>> | 92% | 52,185 psi | 89% | 2776 fps | 100% |
| Lovex D060 | <<locked>> | 86% | 53,069 psi | 90% | 2822 fps | 99.8% |
| Lovex D063 | <<locked>> | 82% | 52,547 psi | 89% | 2792 fps | 99.8% |
| Lovex S053 | <<locked>> | 92% | 50,154 psi | 85% | 2730 fps | 100% |
| Norma 200ᴾ | <<locked>> | 100% | 50,401 psi | 86% | 2858 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 29,602 psi | 50% | 1713 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 92% | 51,285 psi | 87% | 2805 fps | 100% |
| Shooters World Blackout | <<locked>> | 82% | 52,547 psi | 89% | 2792 fps | 99.8% |
| Shooters World Buffalo Rifle | <<locked>> | 86% | 53,069 psi | 90% | 2822 fps | 99.8% |
| Shooters World SOCOM | <<locked>> | 84% | 50,763 psi | 86% | 2746 fps | 99.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 96% | 51,198 psi | 87% | 2592 fps | 100% |
| SNPE Vectan SP 3ᴾ | <<locked>> | 100% | 45,643 psi | 78% | 2769 fps | 97% |
| Vihtavuori N110 | <<locked>> | 88% | 53,026 psi | 90% | 2687 fps | 100% |
| Vihtavuori N120 | <<locked>> | 98% | 50,908 psi | 87% | 2799 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 42,931 psi | 73% | 2677 fps | 98.1% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 33,489 psi | 57% | 2441 fps | 95.7% |
| Accurate 2015 | <<locked>> | 98% | 35,694 psi | 61% | 2582 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 92% | 41,887 psi | 71% | 2595 fps | 95.2% |
| Accurate No. 11 FS | <<locked>> | 80% | 48,486 psi | 83% | 2703 fps | 100% |
| ADI AR 2205 | <<locked>> | 80% | 44,237 psi | 75% | 2552 fps | 100% |
| ADI AR 2207 | <<locked>> | 80% | 28,964 psi | 49% | 2425 fps | 98.2% |
| ADI AR 2219 | <<locked>> | 96% | 43,424 psi | 74% | 2749 fps | 95.3% |
| Alliant AR-Comp | <<locked>> | 94% | 29,834 psi | 51% | 2493 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 88% | 30,719 psi | 52% | 2484 fps | 95% |
| Alliant Reloder-7 | <<locked>> | 80% | 30,792 psi | 52% | 2418 fps | 95.5% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 41,858 psi | 71% | 2618 fps | 95.6% |
| Hodgdon H4198 | <<locked>> | 90% | 43,526 psi | 74% | 2638 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,046 psi | 38% | 1496 fps | 100% |
| IMR 4198 | <<locked>> | 84% | 30,342 psi | 52% | 2408 fps | 95.6% |
| IMR 4227 | <<locked>> | 80% | 36,405 psi | 62% | 2500 fps | 98.9% |
| Lovex D060 | <<locked>> | 80% | 44,440 psi | 76% | 2674 fps | 99% |
| Lovex D063 | <<locked>> | 80% | 49,342 psi | 84% | 2743 fps | 99.6% |
| Lovex S053 | <<locked>> | 80% | 35,723 psi | 61% | 2480 fps | 100% |
| Norma 200 | <<locked>> | 82% | 28,631 psi | 49% | 2418 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 21,872 psi | 37% | 1535 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 35,462 psi | 60% | 2523 fps | 98.6% |
| Shooters World Blackout | <<locked>> | 80% | 49,342 psi | 84% | 2743 fps | 99.6% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 44,440 psi | 76% | 2674 fps | 99% |
| Shooters World SOCOM | <<locked>> | 80% | 44,295 psi | 75% | 2641 fps | 99.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 33,388 psi | 57% | 2313 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 38,174 psi | 65% | 2625 fps | 95% |
| Vihtavuori N110 | <<locked>> | 80% | 41,930 psi | 71% | 2526 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 29,269 psi | 50% | 2402 fps | 99.1% |
| Vihtavuori N130 | <<locked>> | 90% | 31,908 psi | 54% | 2448 fps | 95% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 47 powders for 7 mm B.R. Rem. loaded with the .284 | 103gr | Sax KJG-SR. ADI AR 2219 delivers the highest muzzle velocity at 2,864 fps; across all powders the maximum-charge window runs from 1,673 fps to 2,864 fps. Accurate 2015 gives the best case fill at 100 %, and 47 of the 47 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 45–90 %, leaving at least 10 % headroom. The 103.0 gr projectile in 0.284" calls for a 1:10.5 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. As outliers, Accurate 2460, Accurate 2495, Hodgdon CFE BLK 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.