Load Specifications
Load data in caliber 7 x 65 R Brenneke with .284 | 175gr | Sierra GameKing bullet and 68 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 ReloadSwiss RS 70.
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>> | 82% | 49,617 psi | 90% | 2441 fps | 97.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 48,907 psi | 89% | 2520 fps | 99.2% |
| Accurate 4064 | <<locked>> | 82% | 48,544 psi | 88% | 2434 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 48,124 psi | 87% | 2520 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 84% | 49,139 psi | 89% | 2461 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 49,429 psi | 90% | 2552 fps | 97.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 49,617 psi | 90% | 2484 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 49,632 psi | 90% | 2497 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 49,371 psi | 90% | 2572 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 46,615 psi | 85% | 2543 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 48,805 psi | 89% | 2546 fps | 97.1% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 48,892 psi | 89% | 2595 fps | 97.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 46,021 psi | 84% | 2539 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 40,495 psi | 73% | 2467 fps | 98.4% |
| Alliant Reloder-26 | <<locked>> | 98% | 48,791 psi | 89% | 2657 fps | 99.9% |
| Bofors RP15ᴾ | <<locked>> | 100% | 44,962 psi | 82% | 2526 fps | 96.2% |
| Bofors RP3 | <<locked>> | 84% | 49,777 psi | 90% | 2493 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 48,892 psi | 89% | 2595 fps | 97.4% |
| Bofors RP7 | <<locked>> | 88% | 49,864 psi | 90% | 2480 fps | 98.2% |
| Hodgdon H380 | <<locked>> | 82% | 47,079 psi | 85% | 2457 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 88% | 47,427 psi | 86% | 2516 fps | 98.3% |
| Hodgdon H4350 | <<locked>> | 86% | 47,863 psi | 87% | 2484 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 49,385 psi | 90% | 2507 fps | 100% |
| Hodgdon Superformance | <<locked>> | 88% | 46,789 psi | 85% | 2539 fps | 97.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,129 psi | 66% | 1555 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 48,646 psi | 88% | 2444 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 47,369 psi | 86% | 2461 fps | 97.7% |
| IMR 4451 Enduron | <<locked>> | 86% | 48,501 psi | 88% | 2461 fps | 98.3% |
| IMR 4831 | <<locked>> | 92% | 48,762 psi | 88% | 2513 fps | 99.9% |
| Lovex S062 | <<locked>> | 82% | 48,776 psi | 89% | 2444 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 48,167 psi | 87% | 2454 fps | 99.2% |
| Lovex S070 | <<locked>> | 90% | 49,037 psi | 89% | 2490 fps | 98.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 40,886 psi | 74% | 2388 fps | 97.8% |
| Norma 203B | <<locked>> | 82% | 48,936 psi | 89% | 2487 fps | 100% |
| Norma 204 | <<locked>> | 90% | 47,137 psi | 86% | 2497 fps | 96.5% |
| Norma MRP | <<locked>> | 98% | 48,269 psi | 88% | 2615 fps | 98.5% |
| Norma URP | <<locked>> | 90% | 47,471 psi | 86% | 2510 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 82% | 49,342 psi | 90% | 2510 fps | 100% |
| Ramshot Hunter | <<locked>> | 92% | 49,400 psi | 90% | 2559 fps | 99.2% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 42,583 psi | 77% | 2464 fps | 96.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,941 psi | 67% | 1594 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 47,282 psi | 86% | 2444 fps | 98.6% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 49,588 psi | 90% | 2589 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 47,819 psi | 87% | 2539 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 46,688 psi | 85% | 2559 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 84% | 46,891 psi | 85% | 2448 fps | 100% |
| Rottweil R 905 | <<locked>> | 96% | 47,732 psi | 87% | 2530 fps | 97.1% |
| Rottweil R 907 | <<locked>> | 88% | 49,864 psi | 90% | 2480 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 88% | 48,167 psi | 87% | 2454 fps | 99.2% |
| Shooters World Precision | <<locked>> | 82% | 48,776 psi | 89% | 2444 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 49,037 psi | 89% | 2490 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 48,211 psi | 87% | 2500 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 48,515 psi | 88% | 2356 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 47,747 psi | 87% | 2411 fps | 98.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 47,282 psi | 86% | 2523 fps | 97% |
| Somchem S355 | <<locked>> | 84% | 47,166 psi | 86% | 2444 fps | 100% |
| Somchem S365 | <<locked>> | 94% | 49,284 psi | 89% | 2559 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 48,385 psi | 88% | 2513 fps | 97.9% |
| Vihtavuori N150 | <<locked>> | 86% | 48,138 psi | 87% | 2425 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 49,429 psi | 90% | 2503 fps | 99.8% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 47,456 psi | 86% | 2487 fps | 97.4% |
| Vihtavuori N540 | <<locked>> | 82% | 49,124 psi | 89% | 2428 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 48,559 psi | 88% | 2510 fps | 99.7% |
| Vihtavuori N555 | <<locked>> | 98% | 48,240 psi | 88% | 2562 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 48,805 psi | 89% | 2480 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 47,427 psi | 86% | 2516 fps | 98.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,423 psi | 75% | 2585 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 48,370 psi | 88% | 2503 fps | 96.9% |
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% | 46,427 psi | 84% | 2388 fps | 97.3% |
| Accurate 3100 | <<locked>> | 88% | 32,721 psi | 59% | 2224 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 45,600 psi | 83% | 2392 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 34,301 psi | 62% | 2267 fps | 97.6% |
| ADI AR 2208 | <<locked>> | 80% | 43,439 psi | 79% | 2369 fps | 99.6% |
| ADI AR 2209 | <<locked>> | 92% | 43,569 psi | 79% | 2451 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,555 psi | 79% | 2388 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,644 psi | 85% | 2451 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 80% | 33,852 psi | 61% | 2274 fps | 97.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 38,029 psi | 69% | 2388 fps | 99.7% |
| Alliant Reloder-19 | <<locked>> | 92% | 42,873 psi | 78% | 2444 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 96% | 42,844 psi | 78% | 2487 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 24,714 psi | 45% | 2057 fps | 95% |
| Alliant Reloder-25 | <<locked>> | 92% | 31,618 psi | 57% | 2257 fps | 95% |
| Alliant Reloder-26 | 46.2 gr | 84% | 29,878 psi | 54% | 2260 fps | 95.2% |
| Bofors RP15 | <<locked>> | 98% | 42,250 psi | 77% | 2474 fps | 95.5% |
| Bofors RP3 | <<locked>> | 80% | 43,845 psi | 80% | 2405 fps | 100% |
| Bofors RP5 | <<locked>> | 96% | 42,844 psi | 78% | 2487 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 38,957 psi | 71% | 2287 fps | 95.6% |
| Hodgdon H380 | <<locked>> | 80% | 44,222 psi | 80% | 2408 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 80% | 36,390 psi | 66% | 2310 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 82% | 42,061 psi | 76% | 2379 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,473 psi | 57% | 2185 fps | 98.4% |
| Hodgdon Superformance | <<locked>> | 82% | 37,855 psi | 69% | 2369 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,079 psi | 49% | 1391 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,687 psi | 83% | 2398 fps | 99.9% |
| IMR 4350 | <<locked>> | 84% | 39,175 psi | 71% | 2316 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 40,205 psi | 73% | 2313 fps | 96.4% |
| IMR 4831 | <<locked>> | 80% | 33,054 psi | 60% | 2224 fps | 97.3% |
| Lovex S062 | <<locked>> | 80% | 45,876 psi | 83% | 2398 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 37,724 psi | 68% | 2267 fps | 97.2% |
| Lovex S070 | <<locked>> | 80% | 36,085 psi | 65% | 2251 fps | 95.5% |
| Lovex S071 | <<locked>> | 94% | 33,808 psi | 61% | 2247 fps | 95.7% |
| Norma 203B | <<locked>> | 80% | 45,992 psi | 83% | 2441 fps | 100% |
| Norma 204 | <<locked>> | 88% | 44,280 psi | 80% | 2448 fps | 95.8% |
| Norma MRP | 48 gr | 90% | 36,825 psi | 67% | 2395 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 34,432 psi | 62% | 2267 fps | 97.5% |
| Ramshot Big Game | <<locked>> | 80% | 46,093 psi | 84% | 2461 fps | 100% |
| Ramshot Hunter | <<locked>> | 80% | 33,228 psi | 60% | 2251 fps | 95.2% |
| Ramshot Magnum | <<locked>> | 98% | 39,624 psi | 72% | 2408 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,630 psi | 50% | 1424 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 44,469 psi | 81% | 2395 fps | 98.2% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 40,408 psi | 73% | 2438 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 33,982 psi | 62% | 2283 fps | 97.2% |
| ReloadSwiss RS 70 | 43.6 gr | 80% | 33,402 psi | 61% | 2287 fps | 96.4% |
| Rottweil R 903 | <<locked>> | 80% | 41,278 psi | 75% | 2356 fps | 99.9% |
| Rottweil R 905 | <<locked>> | 92% | 41,930 psi | 76% | 2428 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 38,957 psi | 71% | 2287 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,724 psi | 68% | 2267 fps | 97.2% |
| Shooters World Precision | <<locked>> | 80% | 45,876 psi | 83% | 2398 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 36,085 psi | 65% | 2251 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 42,032 psi | 76% | 2398 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,975 psi | 78% | 2277 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 36,956 psi | 67% | 2218 fps | 95.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 41,524 psi | 75% | 2425 fps | 95.4% |
| Somchem S355 | <<locked>> | 80% | 41,655 psi | 76% | 2352 fps | 99.9% |
| Somchem S365 | <<locked>> | 80% | 30,937 psi | 56% | 2228 fps | 99.3% |
| Somchem S385 | <<locked>> | 88% | 37,405 psi | 68% | 2316 fps | 95.1% |
| Vihtavuori N150 | <<locked>> | 80% | 39,842 psi | 72% | 2293 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 35,723 psi | 65% | 2264 fps | 97.8% |
| Vihtavuori N165 | <<locked>> | 94% | 39,262 psi | 71% | 2343 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 80% | 46,253 psi | 84% | 2385 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 35,201 psi | 64% | 2267 fps | 97.5% |
| Vihtavuori N555 | <<locked>> | 80% | 26,760 psi | 49% | 2126 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,969 psi | 63% | 2241 fps | 99.3% |
| Winchester 760 | <<locked>> | 80% | 36,390 psi | 66% | 2310 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 84% | 24,758 psi | 45% | 2129 fps | 95.6% |
| Winchester Supreme 780 | <<locked>> | 94% | 42,192 psi | 77% | 2402 fps | 95.3% |
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 68 powders for 7 x 65 R Brenneke loaded with the .284 | 175gr | Sierra GameKing. Alliant Reloder-26 delivers the highest muzzle velocity at 2,657 fps; across all powders the maximum-charge window runs from 1,555 fps to 2,657 fps. Accurate 3100 gives the best case fill at 100 %, and 68 of the 68 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 1:10.5 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, ReloadSwiss RS 70 rank at the top here: for 7 x 65 R Brenneke with the .284 | 175gr | 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.