Load Specifications
Load data in caliber 7 x 65 R Brenneke with .284 | 175gr | Sierra MatchKing bullet and 74 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Norma MRP and Alliant Reloder-16.
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: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 86% | 49,632 psi | 90% | 2425 fps | 97.8% |
| Accurate 3100ᴾ | <<locked>> | 100% | 47,892 psi | 87% | 2497 fps | 99% |
| Accurate 4064 | <<locked>> | 82% | 47,834 psi | 87% | 2421 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 47,239 psi | 86% | 2500 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 84% | 48,269 psi | 88% | 2441 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 96% | 48,501 psi | 88% | 2530 fps | 96.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 49,603 psi | 90% | 2589 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 48,704 psi | 88% | 2464 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 49,008 psi | 89% | 2480 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 48,544 psi | 88% | 2552 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 48,863 psi | 89% | 2572 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 47,877 psi | 87% | 2523 fps | 96.8% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 47,688 psi | 87% | 2566 fps | 96.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 45,107 psi | 82% | 2520 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 39,508 psi | 72% | 2441 fps | 98% |
| Alliant Reloder-26 | <<locked>> | 98% | 47,558 psi | 86% | 2631 fps | 99.8% |
| Bofors RP3 | <<locked>> | 84% | 48,863 psi | 89% | 2474 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 47,688 psi | 87% | 2566 fps | 96.9% |
| Bofors RP7 | <<locked>> | 88% | 48,776 psi | 89% | 2454 fps | 97.9% |
| Hodgdon H380 | <<locked>> | 84% | 49,559 psi | 90% | 2487 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 86% | 47,239 psi | 86% | 2507 fps | 98.2% |
| Hodgdon H4350 | <<locked>> | 90% | 48,588 psi | 88% | 2487 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 48,254 psi | 88% | 2487 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 47,326 psi | 86% | 2477 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 49,211 psi | 89% | 2572 fps | 98.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,100 psi | 66% | 1549 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 47,935 psi | 87% | 2434 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 47,398 psi | 86% | 2418 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 86% | 49,530 psi | 90% | 2441 fps | 98.4% |
| IMR 4350 | <<locked>> | 92% | 49,327 psi | 90% | 2487 fps | 98% |
| IMR 4451 Enduron | <<locked>> | 86% | 47,471 psi | 86% | 2434 fps | 98% |
| IMR 4831 | <<locked>> | 96% | 48,617 psi | 88% | 2507 fps | 99.9% |
| Lovex S062 | <<locked>> | 82% | 47,848 psi | 87% | 2421 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 47,398 psi | 86% | 2434 fps | 99% |
| Lovex S070 | <<locked>> | 90% | 48,283 psi | 88% | 2470 fps | 98.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 39,900 psi | 72% | 2365 fps | 97.4% |
| Norma 203B | <<locked>> | 82% | 48,341 psi | 88% | 2470 fps | 100% |
| Norma 204 | <<locked>> | 92% | 49,545 psi | 90% | 2526 fps | 96.9% |
| Norma MRP | <<locked>> | 98% | 47,094 psi | 85% | 2589 fps | 98.2% |
| Norma URP | <<locked>> | 92% | 49,719 psi | 90% | 2536 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 82% | 48,167 psi | 87% | 2487 fps | 100% |
| Ramshot Hunter | <<locked>> | 92% | 48,385 psi | 88% | 2536 fps | 99% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 46,731 psi | 85% | 2530 fps | 97.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,637 psi | 66% | 1585 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 49,734 psi | 90% | 2474 fps | 98.9% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 48,733 psi | 88% | 2572 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 46,717 psi | 85% | 2516 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 49,066 psi | 89% | 2592 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 86% | 49,037 psi | 89% | 2474 fps | 100% |
| Rottweil R 905 | <<locked>> | 96% | 46,702 psi | 85% | 2507 fps | 96.7% |
| Rottweil R 907 | <<locked>> | 88% | 48,776 psi | 89% | 2454 fps | 97.9% |
| Shooters World Long Rifle | <<locked>> | 88% | 47,398 psi | 86% | 2434 fps | 99% |
| Shooters World Precision | <<locked>> | 82% | 47,848 psi | 87% | 2421 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 48,283 psi | 88% | 2470 fps | 98.4% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 47,094 psi | 85% | 2477 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 47,892 psi | 87% | 2343 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 47,036 psi | 85% | 2392 fps | 98% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 49,414 psi | 90% | 2552 fps | 97.3% |
| Somchem S355 | <<locked>> | 86% | 49,255 psi | 89% | 2470 fps | 100% |
| Somchem S365 | <<locked>> | 94% | 48,037 psi | 87% | 2539 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 47,442 psi | 86% | 2490 fps | 97.6% |
| Unknown powder | <<locked>> | 88% | 47,355 psi | 86% | 2493 fps | 99.4% |
| Vihtavuori N135 | <<locked>> | 82% | 49,850 psi | 90% | 2398 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 49,385 psi | 90% | 2405 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 47,659 psi | 86% | 2415 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 47,558 psi | 86% | 2467 fps | 99.7% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 44,773 psi | 81% | 2434 fps | 96.6% |
| Vihtavuori N540 | <<locked>> | 82% | 49,139 psi | 89% | 2431 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 47,863 psi | 87% | 2507 fps | 99.7% |
| Vihtavuori N555 | <<locked>> | 98% | 47,137 psi | 86% | 2539 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 47,906 psi | 87% | 2461 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 47,239 psi | 86% | 2507 fps | 98.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 40,422 psi | 73% | 2559 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 48,805 psi | 89% | 2503 fps | 96.8% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 80% | 41,017 psi | 74% | 2283 fps | 95.8% |
| Accurate 3100 | <<locked>> | 90% | 34,243 psi | 62% | 2254 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 44,875 psi | 81% | 2375 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 33,634 psi | 61% | 2251 fps | 97.3% |
| ADI AR 2208 | <<locked>> | 80% | 42,830 psi | 78% | 2352 fps | 99.5% |
| ADI AR 2209 | <<locked>> | 92% | 42,685 psi | 77% | 2428 fps | 95.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 46,499 psi | 84% | 2536 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,902 psi | 78% | 2372 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,021 psi | 84% | 2434 fps | 99.8% |
| Alliant Reloder-16 | 39.1 gr | 80% | 33,301 psi | 60% | 2257 fps | 97.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 37,246 psi | 68% | 2369 fps | 99.6% |
| Alliant Reloder-19 | <<locked>> | 92% | 42,250 psi | 77% | 2425 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 96% | 41,945 psi | 76% | 2464 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 82% | 25,860 psi | 47% | 2090 fps | 95.6% |
| Alliant Reloder-25 | <<locked>> | 94% | 32,851 psi | 60% | 2287 fps | 95.4% |
| Alliant Reloder-26 | 46.4 gr | 86% | 31,212 psi | 57% | 2290 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 42,931 psi | 78% | 2382 fps | 100% |
| Bofors RP5 | <<locked>> | 96% | 41,945 psi | 76% | 2464 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 38,159 psi | 69% | 2264 fps | 95.2% |
| Hodgdon H380 | <<locked>> | 80% | 43,352 psi | 79% | 2388 fps | 99% |
| Hodgdon H414 | <<locked>> | 80% | 38,740 psi | 70% | 2352 fps | 96.1% |
| Hodgdon H4350 | <<locked>> | 84% | 40,263 psi | 73% | 2339 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,705 psi | 56% | 2162 fps | 98% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,411 psi | 81% | 2431 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 39,682 psi | 72% | 2402 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,905 psi | 49% | 1378 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,020 psi | 82% | 2388 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,959 psi | 76% | 2329 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 80% | 41,350 psi | 75% | 2300 fps | 96.7% |
| IMR 4350 | <<locked>> | 84% | 38,493 psi | 70% | 2293 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 39,668 psi | 72% | 2293 fps | 96.1% |
| IMR 4831 | <<locked>> | 80% | 29,414 psi | 53% | 2136 fps | 95.8% |
| Lovex S062 | <<locked>> | 80% | 45,194 psi | 82% | 2382 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 37,202 psi | 68% | 2251 fps | 97% |
| Lovex S070 | <<locked>> | 80% | 35,317 psi | 64% | 2231 fps | 95.1% |
| Lovex S071 | <<locked>> | 94% | 32,895 psi | 60% | 2224 fps | 95.2% |
| Norma 203B | <<locked>> | 80% | 45,368 psi | 82% | 2425 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 43,294 psi | 79% | 2421 fps | 95.3% |
| Norma MRP | 48.2 gr | 92% | 38,595 psi | 70% | 2428 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 33,634 psi | 61% | 2244 fps | 97.2% |
| Ramshot Big Game | <<locked>> | 80% | 45,194 psi | 82% | 2441 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 82% | 34,867 psi | 63% | 2280 fps | 95.7% |
| Ramshot Magnum | <<locked>> | 96% | 40,263 psi | 73% | 2411 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,456 psi | 50% | 1414 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,685 psi | 79% | 2375 fps | 97.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 39,639 psi | 72% | 2418 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 33,185 psi | 60% | 2260 fps | 96.8% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 32,793 psi | 60% | 2264 fps | 95.9% |
| Rottweil R 903 | <<locked>> | 80% | 40,350 psi | 73% | 2333 fps | 99.8% |
| Rottweil R 905 | <<locked>> | 92% | 40,944 psi | 74% | 2405 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 38,159 psi | 69% | 2264 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,202 psi | 68% | 2251 fps | 97% |
| Shooters World Precision | <<locked>> | 80% | 45,194 psi | 82% | 2382 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 35,317 psi | 64% | 2231 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,437 psi | 75% | 2382 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,337 psi | 77% | 2260 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 36,216 psi | 66% | 2198 fps | 95.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 40,553 psi | 74% | 2398 fps | 95% |
| Somchem S355 | <<locked>> | 80% | 41,017 psi | 74% | 2336 fps | 99.8% |
| Somchem S365 | <<locked>> | 80% | 30,182 psi | 55% | 2205 fps | 99.1% |
| Somchem S385 | <<locked>> | 90% | 39,146 psi | 71% | 2343 fps | 95.5% |
| Unknown powder | <<locked>> | 80% | 36,492 psi | 66% | 2297 fps | 97.4% |
| Vihtavuori N135 | <<locked>> | 80% | 46,978 psi | 85% | 2362 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,659 psi | 85% | 2369 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,114 psi | 64% | 2201 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 80% | 36,492 psi | 66% | 2274 fps | 97.9% |
| Vihtavuori N165 | <<locked>> | 96% | 39,668 psi | 72% | 2343 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 80% | 46,195 psi | 84% | 2388 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,912 psi | 67% | 2310 fps | 97.9% |
| Vihtavuori N555 | <<locked>> | 82% | 27,862 psi | 51% | 2152 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,345 psi | 62% | 2221 fps | 99.1% |
| Winchester 760 | <<locked>> | 80% | 38,740 psi | 70% | 2352 fps | 96.1% |
| Winchester StaBALL HD | <<locked>> | 86% | 25,831 psi | 47% | 2162 fps | 96.3% |
| Winchester Supreme 780 | <<locked>> | 92% | 42,482 psi | 77% | 2398 fps | 95.2% |
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 74 powders for 7 x 65 R Brenneke loaded with the .284 | 175gr | Sierra MatchKing. Alliant Reloder-26 delivers the highest muzzle velocity at 2,631 fps; across all powders the maximum-charge window runs from 1,549 fps to 2,631 fps. Accurate 3100 gives the best case fill at 100 %, and 74 of the 74 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 66–90 %, leaving at least 10 % headroom. The 175.0 gr projectile in 0.284" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-22, Alliant Reloder-23 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-26, Norma MRP, Alliant Reloder-16 rank at the top here: for 7 x 65 R Brenneke with the .284 | 175gr | Sierra MatchKing 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.