Load Specifications
Load data in caliber 7 mm B.R. Rem. with .284 | 145gr | Speer Hot-Cor bullet and 72 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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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 84% | 49,806 psi | 85% | 2333 fps | 100% |
| Accurate 2015 | <<locked>> | 98% | 50,386 psi | 86% | 2418 fps | 100% |
| Accurate 2200 | <<locked>> | 90% | 53,026 psi | 90% | 2490 fps | 96% |
| Accurate 2230 | <<locked>> | 90% | 52,779 psi | 90% | 2493 fps | 96.4% |
| Accurate 2460 | <<locked>> | 96% | 52,721 psi | 90% | 2477 fps | 99.5% |
| Accurate 2495ᴾ | <<locked>> | 100% | 41,263 psi | 70% | 2362 fps | 99.9% |
| Accurate 2520ᴾ | <<locked>> | 100% | 52,779 psi | 90% | 2516 fps | 99.4% |
| Accurate 4064ᴾ | <<locked>> | 100% | 38,421 psi | 65% | 2333 fps | 98.3% |
| Accurate LT-30 | <<locked>> | 90% | 50,633 psi | 86% | 2346 fps | 99.9% |
| Accurate LT-32 | <<locked>> | 90% | 51,111 psi | 87% | 2356 fps | 99.1% |
| ADI AR 2206Hᴾ | <<locked>> | 100% | 49,385 psi | 84% | 2461 fps | 96.3% |
| ADI AR 2207 | <<locked>> | 88% | 50,763 psi | 86% | 2382 fps | 100% |
| ADI AR 2219 | <<locked>> | 92% | 52,112 psi | 89% | 2487 fps | 99.9% |
| ADI Benchmark 8208ᴾ | <<locked>> | 100% | 52,663 psi | 90% | 2480 fps | 98.1% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 49,559 psi | 84% | 2480 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 94% | 49,922 psi | 85% | 2523 fps | 97.3% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 49,864 psi | 85% | 2477 fps | 97% |
| Alliant Reloder-10x | <<locked>> | 94% | 51,329 psi | 87% | 2441 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 88% | 52,475 psi | 89% | 2395 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 52,214 psi | 89% | 2388 fps | 100% |
| Hodgdon Benchmark | <<locked>> | 98% | 52,605 psi | 90% | 2434 fps | 98.5% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 49,879 psi | 85% | 2503 fps | 98.3% |
| Hodgdon CFE223 | <<locked>> | 98% | 52,591 psi | 90% | 2572 fps | 96.2% |
| Hodgdon H322 | <<locked>> | 94% | 49,951 psi | 85% | 2457 fps | 99.9% |
| Hodgdon H335 | <<locked>> | 94% | 51,039 psi | 87% | 2480 fps | 99.5% |
| Hodgdon H4198 | <<locked>> | 88% | 53,113 psi | 90% | 2395 fps | 99.9% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 49,661 psi | 85% | 2474 fps | 97% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 44,976 psi | 77% | 2441 fps | 96.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,648 psi | 56% | 1437 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 48,617 psi | 83% | 2434 fps | 96.6% |
| IMR 3031ᴾ | <<locked>> | 100% | 47,239 psi | 80% | 2480 fps | 100% |
| IMR 4198 | <<locked>> | 94% | 52,576 psi | 90% | 2408 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 50,024 psi | 85% | 2306 fps | 100% |
| IMR 8208 XBRᴾ | <<locked>> | 100% | 52,663 psi | 90% | 2480 fps | 98.1% |
| Lovex D073.4 | <<locked>> | 88% | 49,980 psi | 85% | 2444 fps | 98.9% |
| Lovex D073.5 | <<locked>> | 96% | 52,417 psi | 89% | 2477 fps | 98.8% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 46,253 psi | 79% | 2441 fps | 98.6% |
| Lovex S053 | <<locked>> | 84% | 51,851 psi | 88% | 2297 fps | 100% |
| Lovex S060ᴾ | <<locked>> | 100% | 51,677 psi | 88% | 2415 fps | 96.6% |
| Lovex S062ᴾ | <<locked>> | 100% | 42,728 psi | 73% | 2352 fps | 96.3% |
| Norma 200 | <<locked>> | 90% | 51,561 psi | 88% | 2421 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 47,964 psi | 82% | 2418 fps | 97.4% |
| Norma 202ᴾ | <<locked>> | 100% | 47,906 psi | 82% | 2438 fps | 99.3% |
| Ramshot Wild Boarᴾ | <<locked>> | 100% | 51,851 psi | 88% | 2503 fps | 96.6% |
| Ramshot X-Terminator | <<locked>> | 96% | 52,083 psi | 89% | 2444 fps | 96.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,590 psi | 55% | 1473 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 52,750 psi | 90% | 2379 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 49,676 psi | 85% | 2438 fps | 98.8% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 52,489 psi | 89% | 2467 fps | 99.5% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 45,368 psi | 77% | 2369 fps | 96.8% |
| Shooters World AR Plus | <<locked>> | 88% | 49,980 psi | 85% | 2444 fps | 98.9% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 46,253 psi | 79% | 2441 fps | 98.6% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 42,728 psi | 73% | 2352 fps | 96.3% |
| Shooters World Tactical Rifle | <<locked>> | 92% | 50,720 psi | 86% | 2411 fps | 97.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 52,417 psi | 89% | 2165 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 92% | 52,533 psi | 89% | 2493 fps | 99.6% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 52,098 psi | 89% | 2448 fps | 100% |
| SNPE Vectan SP 9ᴾ | <<locked>> | 100% | 47,834 psi | 81% | 2434 fps | 95.8% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 52,098 psi | 89% | 2402 fps | 99.5% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 41,698 psi | 71% | 2270 fps | 99% |
| Somchem S321 | <<locked>> | 96% | 50,343 psi | 86% | 2474 fps | 98% |
| Somchem S335ᴾ | <<locked>> | 100% | 49,705 psi | 85% | 2395 fps | 99.7% |
| Somchem S341ᴾ | <<locked>> | 100% | 50,096 psi | 85% | 2451 fps | 96.1% |
| Vihtavuori N120 | <<locked>> | 88% | 50,836 psi | 87% | 2336 fps | 100% |
| Vihtavuori N130 | <<locked>> | 96% | 51,764 psi | 88% | 2392 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 51,198 psi | 87% | 2398 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 43,076 psi | 73% | 2372 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 45,527 psi | 78% | 2379 fps | 99.2% |
| Vihtavuori N530 | <<locked>> | 98% | 49,966 psi | 85% | 2434 fps | 97.7% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 43,874 psi | 75% | 2372 fps | 98.6% |
| Winchester 748ᴾ | <<locked>> | 100% | 50,995 psi | 87% | 2516 fps | 98.6% |
| Winchester StaBALL Matchᴾ | <<locked>> | 100% | 47,166 psi | 80% | 2441 fps | 96.4% |
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% | 44,077 psi | 75% | 2254 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 28,747 psi | 49% | 2051 fps | 97.6% |
| Accurate 2200 | <<locked>> | 88% | 49,792 psi | 85% | 2441 fps | 95.3% |
| Accurate 2230 | <<locked>> | 88% | 49,472 psi | 84% | 2448 fps | 95.7% |
| Accurate 2460 | <<locked>> | 80% | 30,589 psi | 52% | 2110 fps | 95% |
| Accurate 2495 | <<locked>> | 82% | 23,018 psi | 39% | 1982 fps | 95.7% |
| Accurate 2520 | <<locked>> | 86% | 32,605 psi | 56% | 2192 fps | 95.3% |
| Accurate 4064 | <<locked>> | 90% | 28,224 psi | 48% | 2126 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 37,666 psi | 64% | 2146 fps | 98.5% |
| Accurate LT-32 | <<locked>> | 80% | 38,014 psi | 65% | 2152 fps | 96.8% |
| ADI AR 2206H | <<locked>> | 98% | 46,543 psi | 79% | 2418 fps | 95.6% |
| ADI AR 2207 | <<locked>> | 80% | 39,697 psi | 68% | 2228 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 34,954 psi | 60% | 2211 fps | 97.8% |
| ADI Benchmark 8208 | <<locked>> | 90% | 38,885 psi | 66% | 2264 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 80% | 26,498 psi | 45% | 2064 fps | 99% |
| Alliant Power Pro 1200-R | 26.8 gr | 88% | 40,814 psi | 69% | 2375 fps | 95.1% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 41,437 psi | 71% | 2343 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 33,301 psi | 57% | 2156 fps | 99.5% |
| Alliant Reloder-7 | <<locked>> | 80% | 40,988 psi | 70% | 2234 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 35,897 psi | 61% | 2142 fps | 98.4% |
| Hodgdon Benchmark | <<locked>> | 86% | 36,883 psi | 63% | 2182 fps | 95.1% |
| Hodgdon BL-C2 | <<locked>> | 92% | 38,087 psi | 65% | 2313 fps | 95.7% |
| Hodgdon CFE223 | <<locked>> | 96% | 49,023 psi | 83% | 2516 fps | 95.3% |
| Hodgdon H322 | <<locked>> | 80% | 32,155 psi | 55% | 2152 fps | 96.9% |
| Hodgdon H335 | 26.1 gr | 80% | 32,256 psi | 55% | 2159 fps | 95.8% |
| Hodgdon H4198 | <<locked>> | 80% | 41,524 psi | 71% | 2224 fps | 98.7% |
| Hodgdon H4895 | <<locked>> | 94% | 41,263 psi | 70% | 2339 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 41,901 psi | 71% | 2388 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,931 psi | 41% | 1280 fps | 100% |
| Hodgdon VARGET | <<locked>> | 96% | 43,091 psi | 73% | 2346 fps | 95.2% |
| IMR 3031 | <<locked>> | 82% | 27,064 psi | 46% | 2083 fps | 95.8% |
| IMR 4198 | <<locked>> | 80% | 35,230 psi | 60% | 2146 fps | 99.9% |
| IMR 4227 | <<locked>> | 80% | 46,876 psi | 80% | 2267 fps | 100% |
| IMR 8208 XBR | <<locked>> | 90% | 38,885 psi | 66% | 2264 fps | 95.1% |
| Lovex D073.4 | <<locked>> | 80% | 37,898 psi | 65% | 2254 fps | 96.7% |
| Lovex D073.5 | <<locked>> | 84% | 34,867 psi | 59% | 2198 fps | 95% |
| Lovex D073.6 | <<locked>> | 90% | 33,141 psi | 56% | 2215 fps | 95.5% |
| Lovex S053 | <<locked>> | 80% | 46,224 psi | 79% | 2228 fps | 100% |
| Lovex S060 | <<locked>> | 96% | 45,861 psi | 78% | 2329 fps | 95.3% |
| Lovex S062 | <<locked>> | 98% | 40,176 psi | 68% | 2310 fps | 95.7% |
| Norma 200 | <<locked>> | 80% | 37,797 psi | 64% | 2221 fps | 100% |
| Norma 201 | <<locked>> | 94% | 40,277 psi | 69% | 2293 fps | 95.6% |
| Norma 202 | <<locked>> | 86% | 30,951 psi | 53% | 2136 fps | 95.5% |
| Ramshot Wild Boar | <<locked>> | 96% | 45,455 psi | 77% | 2408 fps | 95.2% |
| Ramshot X-Terminator | <<locked>> | 92% | 45,818 psi | 78% | 2352 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,018 psi | 41% | 1316 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 46,601 psi | 79% | 2297 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 33,997 psi | 58% | 2172 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 82% | 31,111 psi | 53% | 2096 fps | 95.2% |
| Rottweil R 902 | <<locked>> | 96% | 40,118 psi | 68% | 2283 fps | 95.5% |
| Shooters World AR Plus | <<locked>> | 80% | 37,898 psi | 65% | 2254 fps | 96.7% |
| Shooters World Match Rifle | <<locked>> | 90% | 33,141 psi | 56% | 2215 fps | 95.5% |
| Shooters World Precision | <<locked>> | 98% | 40,176 psi | 68% | 2310 fps | 95.7% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 41,220 psi | 70% | 2267 fps | 95.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 42,525 psi | 72% | 2044 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 35,360 psi | 60% | 2215 fps | 96.8% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 33,968 psi | 58% | 2159 fps | 98.3% |
| SNPE Vectan SP 9 | <<locked>> | 98% | 45,092 psi | 77% | 2392 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 31,691 psi | 54% | 2067 fps | 95.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 29,037 psi | 49% | 2028 fps | 95.7% |
| Somchem S321 | 28.9 gr | 88% | 38,653 psi | 66% | 2287 fps | 95.4% |
| Somchem S335 | <<locked>> | 82% | 29,167 psi | 50% | 2034 fps | 95.7% |
| Somchem S341 | <<locked>> | 98% | 47,166 psi | 80% | 2408 fps | 95.4% |
| Vihtavuori N120 | <<locked>> | 80% | 39,856 psi | 68% | 2192 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 32,140 psi | 55% | 2083 fps | 99.1% |
| Vihtavuori N133 | <<locked>> | 80% | 27,949 psi | 48% | 2001 fps | 97% |
| Vihtavuori N135 | <<locked>> | 80% | 23,221 psi | 40% | 1952 fps | 95.2% |
| Vihtavuori N140 | <<locked>> | 86% | 29,660 psi | 50% | 2087 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 90% | 38,812 psi | 66% | 2260 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 90% | 32,097 psi | 55% | 2156 fps | 95.6% |
| Winchester 748 | <<locked>> | 90% | 36,840 psi | 63% | 2280 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 98% | 43,961 psi | 75% | 2392 fps | 95.6% |
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 72 powders for 7 mm B.R. Rem. loaded with the .284 | 145gr | Speer Hot-Cor. Hodgdon CFE223 delivers the highest muzzle velocity at 2,572 fps; across all powders the maximum-charge window runs from 1,437 fps to 2,572 fps. Accurate 2495 gives the best case fill at 100 %, and 72 of the 72 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 145.0 gr projectile in 0.284" calls for a 1:13.0 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 | 145gr | Speer Hot-Cor 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.