Load Specifications
Load data in caliber 7 x 65 R Brenneke with .284 | 170gr | Sierra RN Prohunter bullet and 70 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, ReloadSwiss RS 70 and Norma MRP.
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>> | 84% | 47,776 psi | 87% | 2448 fps | 97.4% |
| Accurate 3100ᴾ | <<locked>> | 100% | 49,530 psi | 90% | 2572 fps | 99.2% |
| Accurate 4064 | <<locked>> | 82% | 49,066 psi | 89% | 2487 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 48,878 psi | 89% | 2575 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 84% | 49,574 psi | 90% | 2513 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 49,835 psi | 90% | 2605 fps | 97.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 46,818 psi | 85% | 2487 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 49,734 psi | 90% | 2625 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 47,297 psi | 86% | 2598 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 49,197 psi | 89% | 2595 fps | 97.1% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 49,385 psi | 90% | 2648 fps | 97.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 46,688 psi | 85% | 2592 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 40,727 psi | 74% | 2513 fps | 98.3% |
| Alliant Reloder-26 | <<locked>> | 98% | 49,501 psi | 90% | 2713 fps | 99.9% |
| Bofors RP15ᴾ | <<locked>> | 100% | 45,484 psi | 83% | 2579 fps | 96.2% |
| Bofors RP3 | <<locked>> | 82% | 47,123 psi | 86% | 2500 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 49,385 psi | 90% | 2648 fps | 97.3% |
| Bofors RP7 | <<locked>> | 86% | 47,181 psi | 86% | 2480 fps | 97.6% |
| Hodgdon H380 | <<locked>> | 82% | 47,703 psi | 87% | 2510 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 86% | 48,950 psi | 89% | 2585 fps | 98.5% |
| Hodgdon H4350 | <<locked>> | 90% | 49,835 psi | 90% | 2559 fps | 97.5% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 49,792 psi | 90% | 2559 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 48,907 psi | 89% | 2552 fps | 100% |
| Hodgdon Superformance | <<locked>> | 88% | 47,065 psi | 85% | 2589 fps | 97.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,230 psi | 66% | 1591 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 49,081 psi | 89% | 2503 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 48,515 psi | 88% | 2490 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 47,805 psi | 87% | 2464 fps | 98.1% |
| IMR 4350 | <<locked>> | 90% | 47,718 psi | 87% | 2510 fps | 97.7% |
| IMR 4451 Enduron | <<locked>> | 86% | 48,747 psi | 88% | 2507 fps | 98.2% |
| IMR 4831 | <<locked>> | 94% | 47,384 psi | 86% | 2536 fps | 99.8% |
| Lovex S062 | <<locked>> | 82% | 48,994 psi | 89% | 2490 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 48,704 psi | 88% | 2507 fps | 99.2% |
| Lovex S070 | <<locked>> | 90% | 49,443 psi | 90% | 2539 fps | 98.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 41,408 psi | 75% | 2438 fps | 97.8% |
| Norma 203B | <<locked>> | 82% | 49,371 psi | 90% | 2539 fps | 100% |
| Norma 204 | <<locked>> | 90% | 47,688 psi | 87% | 2549 fps | 96.5% |
| Norma MRP | <<locked>> | 98% | 48,762 psi | 88% | 2667 fps | 98.5% |
| Norma URP | <<locked>> | 90% | 47,892 psi | 87% | 2559 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 82% | 49,806 psi | 90% | 2562 fps | 100% |
| Ramshot Hunter | <<locked>> | 90% | 46,717 psi | 85% | 2559 fps | 98.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 48,167 psi | 87% | 2605 fps | 97.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,738 psi | 67% | 1627 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 47,790 psi | 87% | 2497 fps | 98.6% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 46,978 psi | 85% | 2595 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 48,356 psi | 88% | 2592 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 47,384 psi | 86% | 2615 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 84% | 47,311 psi | 86% | 2497 fps | 100% |
| Rottweil R 905 | <<locked>> | 96% | 48,182 psi | 87% | 2582 fps | 97.1% |
| Rottweil R 907 | <<locked>> | 86% | 47,181 psi | 86% | 2480 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 88% | 48,704 psi | 88% | 2507 fps | 99.2% |
| Shooters World Precision | <<locked>> | 82% | 48,994 psi | 89% | 2490 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 49,443 psi | 90% | 2539 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 48,472 psi | 88% | 2549 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 49,008 psi | 89% | 2405 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 48,182 psi | 87% | 2461 fps | 98.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 47,718 psi | 87% | 2575 fps | 96.9% |
| Somchem S355 | <<locked>> | 84% | 47,572 psi | 86% | 2493 fps | 100% |
| Somchem S365 | <<locked>> | 92% | 46,485 psi | 84% | 2566 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 49,081 psi | 89% | 2566 fps | 97.9% |
| Unknown powder | <<locked>> | 88% | 48,675 psi | 88% | 2566 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 90% | 49,095 psi | 89% | 2487 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 49,081 psi | 89% | 2539 fps | 99.8% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 46,543 psi | 84% | 2513 fps | 97% |
| Vihtavuori N550 | <<locked>> | 88% | 49,327 psi | 90% | 2582 fps | 99.8% |
| Vihtavuori N555 | <<locked>> | 98% | 49,066 psi | 89% | 2618 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 49,429 psi | 90% | 2533 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 48,950 psi | 89% | 2585 fps | 98.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 42,090 psi | 76% | 2641 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 47,079 psi | 85% | 2526 fps | 96.5% |
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% | 41,989 psi | 76% | 2349 fps | 96.1% |
| Accurate 3100 | <<locked>> | 88% | 33,127 psi | 60% | 2270 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 45,919 psi | 83% | 2441 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 34,722 psi | 63% | 2316 fps | 97.6% |
| ADI AR 2208 | <<locked>> | 80% | 43,714 psi | 79% | 2418 fps | 99.6% |
| ADI AR 2209 | <<locked>> | 92% | 43,845 psi | 80% | 2500 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 44,092 psi | 80% | 2441 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 34,287 psi | 62% | 2326 fps | 97.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 38,319 psi | 70% | 2438 fps | 99.7% |
| Alliant Reloder-19 | <<locked>> | 92% | 43,381 psi | 79% | 2493 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 96% | 43,439 psi | 79% | 2539 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 82% | 26,585 psi | 48% | 2152 fps | 96% |
| Alliant Reloder-25 | <<locked>> | 94% | 33,910 psi | 62% | 2356 fps | 95.9% |
| Alliant Reloder-26 | 47.7 gr | 84% | 30,124 psi | 55% | 2300 fps | 95.1% |
| Bofors RP15 | <<locked>> | 98% | 42,554 psi | 77% | 2523 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 44,034 psi | 80% | 2448 fps | 100% |
| Bofors RP5 | <<locked>> | 96% | 43,439 psi | 79% | 2539 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 39,175 psi | 71% | 2333 fps | 95.5% |
| Hodgdon H380 | <<locked>> | 80% | 44,628 psi | 81% | 2461 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 80% | 39,813 psi | 72% | 2421 fps | 96.4% |
| Hodgdon H4350 | <<locked>> | 84% | 41,394 psi | 75% | 2408 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,720 psi | 58% | 2231 fps | 98.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 45,745 psi | 83% | 2503 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 38,130 psi | 69% | 2415 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,948 psi | 49% | 1417 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,224 psi | 84% | 2457 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,960 psi | 78% | 2395 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 80% | 42,467 psi | 77% | 2369 fps | 97% |
| IMR 4350 | <<locked>> | 84% | 39,494 psi | 72% | 2362 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 40,640 psi | 74% | 2362 fps | 96.4% |
| IMR 4831 | <<locked>> | 80% | 30,472 psi | 55% | 2201 fps | 96.2% |
| Lovex S062 | <<locked>> | 80% | 46,137 psi | 84% | 2448 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 37,985 psi | 69% | 2313 fps | 97.2% |
| Lovex S070 | <<locked>> | 80% | 36,289 psi | 66% | 2297 fps | 95.4% |
| Lovex S071 | <<locked>> | 94% | 34,185 psi | 62% | 2293 fps | 95.6% |
| Norma 203B | <<locked>> | 80% | 46,514 psi | 84% | 2490 fps | 100% |
| Norma 204 | <<locked>> | 88% | 44,556 psi | 81% | 2493 fps | 95.7% |
| Norma MRP | 49.6 gr | 90% | 37,246 psi | 68% | 2444 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 34,650 psi | 63% | 2310 fps | 97.4% |
| Ramshot Big Game | <<locked>> | 80% | 46,340 psi | 84% | 2510 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 80% | 33,518 psi | 61% | 2293 fps | 95.1% |
| Ramshot Magnum | <<locked>> | 96% | 41,481 psi | 75% | 2487 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,485 psi | 50% | 1453 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 44,788 psi | 81% | 2444 fps | 98.1% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 40,756 psi | 74% | 2490 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 34,301 psi | 62% | 2329 fps | 97.1% |
| ReloadSwiss RS 70 | 45 gr | 80% | 33,620 psi | 61% | 2329 fps | 96.3% |
| Rottweil R 903 | <<locked>> | 80% | 41,524 psi | 75% | 2402 fps | 99.9% |
| Rottweil R 905 | <<locked>> | 92% | 42,221 psi | 77% | 2474 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 39,175 psi | 71% | 2333 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,985 psi | 69% | 2313 fps | 97.2% |
| Shooters World Precision | <<locked>> | 80% | 46,137 psi | 84% | 2448 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 36,289 psi | 66% | 2297 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 42,409 psi | 77% | 2448 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 43,323 psi | 79% | 2323 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 37,347 psi | 68% | 2267 fps | 95.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 41,843 psi | 76% | 2470 fps | 95.4% |
| Somchem S355 | <<locked>> | 80% | 41,901 psi | 76% | 2398 fps | 99.9% |
| Somchem S365 | <<locked>> | 80% | 31,125 psi | 56% | 2270 fps | 99.2% |
| Somchem S385 | <<locked>> | 88% | 37,797 psi | 69% | 2362 fps | 95% |
| Unknown powder | <<locked>> | 80% | 37,536 psi | 68% | 2362 fps | 97.6% |
| Vihtavuori N150 | <<locked>> | 80% | 36,071 psi | 65% | 2267 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 37,405 psi | 68% | 2336 fps | 98.1% |
| Vihtavuori N165 | <<locked>> | 96% | 40,886 psi | 74% | 2415 fps | 95.5% |
| Vihtavuori N550 | <<locked>> | 80% | 38,072 psi | 69% | 2379 fps | 98.2% |
| Vihtavuori N555 | <<locked>> | 80% | 27,006 psi | 49% | 2169 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,331 psi | 64% | 2287 fps | 99.3% |
| Winchester 760 | <<locked>> | 80% | 39,813 psi | 72% | 2421 fps | 96.4% |
| Winchester StaBALL HD | <<locked>> | 84% | 24,903 psi | 45% | 2169 fps | 95.4% |
| Winchester Supreme 780 | <<locked>> | 92% | 43,656 psi | 79% | 2467 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 70 powders for 7 x 65 R Brenneke loaded with the .284 | 170gr | Sierra RN Prohunter. Alliant Reloder-26 delivers the highest muzzle velocity at 2,713 fps; across all powders the maximum-charge window runs from 1,591 fps to 2,713 fps. Accurate 3100 gives the best case fill at 100 %, and 70 of the 70 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 170.0 gr projectile in 0.284" calls for a 1:12.5 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, ReloadSwiss RS 70, Norma MRP rank at the top here: for 7 x 65 R Brenneke with the .284 | 170gr | Sierra RN Prohunter 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.