Load Specifications
Load data in caliber 7 mm B.R. Rem. with .284 | 150gr | Sierra GameKing bullet and 71 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 1200-R, Hodgdon H335 and Somchem S321.
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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 84% | 50,096 psi | 85% | 2283 fps | 100% |
| Accurate 2015 | <<locked>> | 98% | 50,401 psi | 86% | 2362 fps | 100% |
| Accurate 2200 | <<locked>> | 90% | 52,982 psi | 90% | 2431 fps | 96.2% |
| Accurate 2230 | <<locked>> | 90% | 53,011 psi | 90% | 2441 fps | 96.6% |
| Accurate 2460 | <<locked>> | 96% | 52,475 psi | 89% | 2421 fps | 99.6% |
| Accurate 2495ᴾ | <<locked>> | 100% | 41,481 psi | 71% | 2313 fps | 100% |
| Accurate 2520ᴾ | <<locked>> | 100% | 52,881 psi | 90% | 2464 fps | 99.5% |
| Accurate 4064ᴾ | <<locked>> | 100% | 38,638 psi | 66% | 2287 fps | 98.5% |
| Accurate LT-30 | <<locked>> | 90% | 50,908 psi | 87% | 2297 fps | 99.9% |
| Accurate LT-32 | <<locked>> | 90% | 51,343 psi | 87% | 2306 fps | 99.2% |
| ADI AR 2206Hᴾ | <<locked>> | 100% | 49,705 psi | 85% | 2411 fps | 96.6% |
| ADI AR 2207 | <<locked>> | 88% | 50,807 psi | 86% | 2326 fps | 100% |
| ADI AR 2219 | <<locked>> | 92% | 52,170 psi | 89% | 2434 fps | 100% |
| ADI Benchmark 8208ᴾ | <<locked>> | 100% | 52,953 psi | 90% | 2428 fps | 98.3% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 49,777 psi | 85% | 2428 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 94% | 49,966 psi | 85% | 2467 fps | 97.5% |
| Alliant Reloder-10x | <<locked>> | 94% | 51,140 psi | 87% | 2382 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 88% | 52,127 psi | 89% | 2336 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 52,446 psi | 89% | 2336 fps | 100% |
| Hodgdon Benchmark | <<locked>> | 98% | 52,736 psi | 90% | 2382 fps | 98.7% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 49,937 psi | 85% | 2448 fps | 98.4% |
| Hodgdon CFE223 | <<locked>> | 98% | 52,663 psi | 90% | 2516 fps | 96.4% |
| Hodgdon H322 | <<locked>> | 94% | 50,488 psi | 86% | 2411 fps | 99.9% |
| Hodgdon H335 | <<locked>> | 94% | 51,329 psi | 87% | 2431 fps | 99.6% |
| Hodgdon H4198 | <<locked>> | 88% | 52,765 psi | 90% | 2333 fps | 99.9% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 49,937 psi | 85% | 2425 fps | 97.2% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 44,918 psi | 76% | 2385 fps | 96.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,619 psi | 56% | 1401 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 48,907 psi | 83% | 2385 fps | 96.8% |
| IMR 3031ᴾ | <<locked>> | 100% | 47,355 psi | 81% | 2428 fps | 100% |
| IMR 4198 | <<locked>> | 94% | 52,678 psi | 90% | 2356 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 53,098 psi | 90% | 2290 fps | 100% |
| IMR 8208 XBRᴾ | <<locked>> | 100% | 52,953 psi | 90% | 2428 fps | 98.3% |
| Lovex D073.4 | <<locked>> | 88% | 50,053 psi | 85% | 2392 fps | 99% |
| Lovex D073.5 | <<locked>> | 96% | 52,373 psi | 89% | 2421 fps | 98.9% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 46,659 psi | 79% | 2395 fps | 98.8% |
| Lovex S053 | <<locked>> | 84% | 51,561 psi | 88% | 2241 fps | 100% |
| Lovex S060ᴾ | <<locked>> | 100% | 51,822 psi | 88% | 2362 fps | 96.8% |
| Lovex S062ᴾ | <<locked>> | 100% | 42,830 psi | 73% | 2303 fps | 96.6% |
| Norma 200 | <<locked>> | 90% | 51,314 psi | 87% | 2362 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 48,196 psi | 82% | 2369 fps | 97.6% |
| Norma 202ᴾ | <<locked>> | 100% | 48,124 psi | 82% | 2388 fps | 99.4% |
| Ramshot Wild Boarᴾ | <<locked>> | 100% | 51,938 psi | 88% | 2448 fps | 96.8% |
| Ramshot X-Terminator | <<locked>> | 96% | 51,982 psi | 88% | 2392 fps | 96.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,590 psi | 55% | 1434 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 52,808 psi | 90% | 2323 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 96% | 53,040 psi | 90% | 2428 fps | 99.3% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 52,605 psi | 90% | 2411 fps | 99.6% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 45,455 psi | 77% | 2320 fps | 97% |
| Shooters World AR Plus | <<locked>> | 88% | 50,053 psi | 85% | 2392 fps | 99% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 46,659 psi | 79% | 2395 fps | 98.8% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 42,830 psi | 73% | 2303 fps | 96.6% |
| Shooters World Tactical Rifle | <<locked>> | 92% | 50,923 psi | 87% | 2359 fps | 97.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 52,504 psi | 89% | 2113 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 92% | 52,750 psi | 90% | 2441 fps | 99.7% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 52,460 psi | 89% | 2395 fps | 100% |
| SNPE Vectan SP 9ᴾ | <<locked>> | 100% | 47,776 psi | 81% | 2382 fps | 96% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 51,634 psi | 88% | 2343 fps | 99.5% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 41,307 psi | 70% | 2215 fps | 99.1% |
| Somchem S321 | <<locked>> | 96% | 50,227 psi | 86% | 2418 fps | 98.2% |
| Somchem S335ᴾ | <<locked>> | 100% | 49,879 psi | 85% | 2343 fps | 99.8% |
| Somchem S341ᴾ | <<locked>> | 100% | 50,212 psi | 85% | 2398 fps | 96.3% |
| Vihtavuori N120 | <<locked>> | 88% | 50,894 psi | 87% | 2283 fps | 100% |
| Vihtavuori N130 | <<locked>> | 96% | 51,663 psi | 88% | 2336 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 50,676 psi | 86% | 2339 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 42,656 psi | 73% | 2313 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 45,252 psi | 77% | 2323 fps | 99.3% |
| Vihtavuori N530 | <<locked>> | 98% | 50,227 psi | 86% | 2385 fps | 97.9% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 43,801 psi | 75% | 2320 fps | 98.7% |
| Winchester 748ᴾ | <<locked>> | 100% | 50,923 psi | 87% | 2461 fps | 98.8% |
| Winchester StaBALL Matchᴾ | <<locked>> | 100% | 47,152 psi | 80% | 2388 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% | 44,150 psi | 75% | 2205 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 28,921 psi | 49% | 2008 fps | 97.8% |
| Accurate 2200 | <<locked>> | 88% | 49,661 psi | 85% | 2385 fps | 95.5% |
| Accurate 2230 | <<locked>> | 86% | 45,948 psi | 78% | 2343 fps | 95.1% |
| Accurate 2460 | <<locked>> | 80% | 30,719 psi | 52% | 2067 fps | 95.3% |
| Accurate 2495 | <<locked>> | 80% | 21,495 psi | 37% | 1896 fps | 95.2% |
| Accurate 2520 | <<locked>> | 86% | 32,561 psi | 55% | 2146 fps | 95.6% |
| Accurate 4064 | <<locked>> | 90% | 28,123 psi | 48% | 2077 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 80% | 37,913 psi | 65% | 2103 fps | 98.7% |
| Accurate LT-32 | <<locked>> | 80% | 38,305 psi | 65% | 2106 fps | 97% |
| ADI AR 2206H | <<locked>> | 96% | 43,859 psi | 75% | 2323 fps | 95.2% |
| ADI AR 2207 | <<locked>> | 80% | 39,900 psi | 68% | 2178 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 35,012 psi | 60% | 2162 fps | 98% |
| ADI Benchmark 8208 | <<locked>> | 90% | 38,812 psi | 66% | 2215 fps | 95.3% |
| Alliant AR-Comp | <<locked>> | 80% | 26,701 psi | 45% | 2024 fps | 99.2% |
| Alliant Power Pro 1200-R | 26.1 gr | 88% | 41,075 psi | 70% | 2326 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 33,446 psi | 57% | 2110 fps | 99.6% |
| Alliant Reloder-7 | <<locked>> | 80% | 41,307 psi | 70% | 2188 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 35,636 psi | 61% | 2090 fps | 98.4% |
| Hodgdon Benchmark | <<locked>> | 86% | 36,970 psi | 63% | 2136 fps | 95.4% |
| Hodgdon BL-C2 | <<locked>> | 90% | 35,549 psi | 61% | 2215 fps | 95.1% |
| Hodgdon CFE223 | <<locked>> | 96% | 48,950 psi | 83% | 2464 fps | 95.6% |
| Hodgdon H322 | <<locked>> | 80% | 32,111 psi | 55% | 2103 fps | 97.1% |
| Hodgdon H335 | 25.4 gr | 80% | 32,416 psi | 55% | 2116 fps | 96.1% |
| Hodgdon H4198 | <<locked>> | 80% | 41,829 psi | 71% | 2178 fps | 98.9% |
| Hodgdon H4895 | <<locked>> | 94% | 41,292 psi | 70% | 2290 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 42,264 psi | 72% | 2343 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,062 psi | 41% | 1250 fps | 100% |
| Hodgdon VARGET | <<locked>> | 96% | 43,163 psi | 73% | 2297 fps | 95.5% |
| IMR 3031 | <<locked>> | 80% | 25,353 psi | 43% | 1991 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 35,302 psi | 60% | 2100 fps | 100% |
| IMR 4227 | <<locked>> | 80% | 47,050 psi | 80% | 2215 fps | 100% |
| IMR 8208 XBR | <<locked>> | 90% | 38,812 psi | 66% | 2215 fps | 95.3% |
| Lovex D073.4 | <<locked>> | 80% | 37,594 psi | 64% | 2198 fps | 96.8% |
| Lovex D073.5 | <<locked>> | 84% | 34,795 psi | 59% | 2149 fps | 95.2% |
| Lovex D073.6 | <<locked>> | 90% | 33,098 psi | 56% | 2169 fps | 95.8% |
| Lovex S053 | <<locked>> | 80% | 46,369 psi | 79% | 2175 fps | 100% |
| Lovex S060 | <<locked>> | 96% | 45,847 psi | 78% | 2277 fps | 95.6% |
| Lovex S062 | <<locked>> | 96% | 37,724 psi | 64% | 2218 fps | 95.2% |
| Norma 200 | <<locked>> | 80% | 37,710 psi | 64% | 2169 fps | 100% |
| Norma 201 | <<locked>> | 92% | 37,768 psi | 64% | 2198 fps | 95.1% |
| Norma 202 | <<locked>> | 84% | 29,124 psi | 50% | 2047 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 96% | 45,353 psi | 77% | 2356 fps | 95.4% |
| Ramshot X-Terminator | <<locked>> | 92% | 45,556 psi | 78% | 2300 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,178 psi | 41% | 1283 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 46,992 psi | 80% | 2251 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 34,026 psi | 58% | 2123 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 82% | 30,995 psi | 53% | 2047 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 94% | 38,029 psi | 65% | 2195 fps | 95.1% |
| Shooters World AR Plus | <<locked>> | 80% | 37,594 psi | 64% | 2198 fps | 96.8% |
| Shooters World Match Rifle | <<locked>> | 90% | 33,098 psi | 56% | 2169 fps | 95.8% |
| Shooters World Precision | <<locked>> | 96% | 37,724 psi | 64% | 2218 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 41,553 psi | 71% | 2221 fps | 95.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 42,888 psi | 73% | 2001 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 35,505 psi | 60% | 2172 fps | 97% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 33,837 psi | 58% | 2106 fps | 98.4% |
| SNPE Vectan SP 9 | <<locked>> | 98% | 44,918 psi | 76% | 2336 fps | 95.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 29,979 psi | 51% | 1985 fps | 95.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 27,311 psi | 46% | 1942 fps | 95.2% |
| Somchem S321 | 28.1 gr | 88% | 38,638 psi | 66% | 2238 fps | 95.7% |
| Somchem S335 | <<locked>> | 80% | 27,412 psi | 47% | 1949 fps | 95.1% |
| Somchem S341 | <<locked>> | 98% | 47,166 psi | 80% | 2356 fps | 95.6% |
| Vihtavuori N120 | <<locked>> | 80% | 40,059 psi | 68% | 2142 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 32,024 psi | 55% | 2034 fps | 99.2% |
| Vihtavuori N133 | <<locked>> | 80% | 27,804 psi | 47% | 1955 fps | 97.2% |
| Vihtavuori N135 | <<locked>> | 80% | 23,119 psi | 39% | 1909 fps | 95.4% |
| Vihtavuori N140 | <<locked>> | 86% | 29,457 psi | 50% | 2034 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 90% | 38,711 psi | 66% | 2208 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 88% | 30,197 psi | 51% | 2067 fps | 95% |
| Winchester 748 | <<locked>> | 90% | 36,869 psi | 63% | 2231 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 96% | 41,220 psi | 70% | 2293 fps | 95% |
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 71 powders for 7 mm B.R. Rem. loaded with the .284 | 150gr | Sierra GameKing. Hodgdon CFE223 delivers the highest muzzle velocity at 2,516 fps; across all powders the maximum-charge window runs from 1,401 fps to 2,516 fps. Accurate 2495 gives the best case fill at 100 %, and 71 of the 71 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.284" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 2520, Accurate 4064 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 Power Pro 1200-R, Hodgdon H335, Somchem S321 rank at the top here: for 7 mm B.R. Rem. with the .284 | 150gr | Sierra GameKing they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.