Load Specifications
Load data in caliber 7 x 64 Brenneke with .284 | 175gr | Speer Grand Slam bullet and 90 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-26 and Hodgdon Superformance.
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 2495 | <<locked>> | 82% | 53,171 psi | 88% | 2467 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 51,169 psi | 85% | 2487 fps | 98.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 51,314 psi | 85% | 2572 fps | 99.6% |
| Accurate 4064 | <<locked>> | 84% | 53,722 psi | 89% | 2523 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 53,896 psi | 90% | 2621 fps | 100% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 53,301 psi | 89% | 2703 fps | 96.2% |
| ADI AR 2208 | <<locked>> | 86% | 53,693 psi | 89% | 2549 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 51,343 psi | 85% | 2608 fps | 97.9% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 52,460 psi | 87% | 2654 fps | 96.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 52,634 psi | 87% | 2661 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 54,288 psi | 90% | 2569 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 51,503 psi | 86% | 2546 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 51,300 psi | 85% | 2621 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 51,996 psi | 86% | 2644 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 53,824 psi | 89% | 2648 fps | 98.4% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 51,053 psi | 85% | 2651 fps | 98.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 48,298 psi | 80% | 2595 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 42,018 psi | 70% | 2523 fps | 99.1% |
| Alliant Reloder-26 | <<locked>> | 98% | 50,995 psi | 85% | 2713 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 46,775 psi | 78% | 2579 fps | 97.1% |
| Bofors RP3 | <<locked>> | 84% | 51,677 psi | 86% | 2539 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 51,053 psi | 85% | 2651 fps | 98.1% |
| Bofors RP7 | <<locked>> | 88% | 51,445 psi | 85% | 2526 fps | 98.7% |
| Hodgdon H380 | <<locked>> | 84% | 52,141 psi | 87% | 2556 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 52,678 psi | 88% | 2621 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 88% | 52,794 psi | 88% | 2582 fps | 98.4% |
| Hodgdon H4831 | <<locked>> | 98% | 52,750 psi | 88% | 2605 fps | 96.3% |
| Hodgdon H4831 SC | <<locked>> | 98% | 51,416 psi | 85% | 2585 fps | 96% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 51,445 psi | 85% | 2556 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 53,243 psi | 88% | 2585 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 41,234 psi | 69% | 2546 fps | 96.1% |
| Hodgdon Superformance | <<locked>> | 90% | 52,301 psi | 87% | 2651 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,448 psi | 61% | 1578 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 54,172 psi | 90% | 2552 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 53,287 psi | 89% | 2533 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 52,605 psi | 87% | 2520 fps | 99.2% |
| IMR 4350 | <<locked>> | 92% | 52,083 psi | 87% | 2559 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 88% | 53,040 psi | 88% | 2552 fps | 99.2% |
| IMR 4831 | <<locked>> | 94% | 54,201 psi | 90% | 2612 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 52,837 psi | 88% | 2572 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 51,097 psi | 85% | 2543 fps | 96.1% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 49,763 psi | 83% | 2625 fps | 96.4% |
| Lovex S062 | <<locked>> | 84% | 53,432 psi | 89% | 2526 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 53,069 psi | 88% | 2549 fps | 99.8% |
| Lovex S070 | <<locked>> | 92% | 53,969 psi | 90% | 2585 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 42,627 psi | 71% | 2438 fps | 98.5% |
| Norma 203B | <<locked>> | 84% | 53,925 psi | 90% | 2575 fps | 100% |
| Norma 204 | <<locked>> | 92% | 52,605 psi | 87% | 2605 fps | 98% |
| Norma MRPᴾ | <<locked>> | 100% | 54,070 psi | 90% | 2726 fps | 99.5% |
| Norma URP | <<locked>> | 92% | 52,533 psi | 87% | 2605 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 51,039 psi | 85% | 2556 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 50,125 psi | 83% | 2641 fps | 96.8% |
| Ramshot Hunter | <<locked>> | 92% | 51,503 psi | 86% | 2608 fps | 99.6% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 44,280 psi | 74% | 2520 fps | 97.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,985 psi | 61% | 1614 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 52,098 psi | 87% | 2539 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 51,648 psi | 86% | 2635 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 53,476 psi | 89% | 2641 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 51,938 psi | 86% | 2664 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 40,741 psi | 68% | 2536 fps | 97.1% |
| Rottweil R 902 | <<locked>> | 82% | 52,228 psi | 87% | 2493 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 51,837 psi | 86% | 2536 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 53,229 psi | 88% | 2585 fps | 97.2% |
| Rottweil R 905 | <<locked>> | 98% | 53,330 psi | 89% | 2638 fps | 98.4% |
| Rottweil R 907 | <<locked>> | 88% | 51,445 psi | 85% | 2526 fps | 98.7% |
| Shooters World Long Rifle | <<locked>> | 90% | 53,069 psi | 88% | 2549 fps | 99.8% |
| Shooters World Precision | <<locked>> | 84% | 53,432 psi | 89% | 2526 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 53,969 psi | 90% | 2585 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 53,301 psi | 89% | 2592 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 53,171 psi | 88% | 2434 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 52,547 psi | 87% | 2503 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 52,852 psi | 88% | 2635 fps | 98.3% |
| Somchem S355 | <<locked>> | 86% | 51,967 psi | 86% | 2533 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 51,314 psi | 85% | 2526 fps | 95.9% |
| Somchem S365 | <<locked>> | 94% | 51,721 psi | 86% | 2612 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 53,780 psi | 89% | 2612 fps | 99% |
| Vihtavuori N135 | <<locked>> | 82% | 52,489 psi | 87% | 2457 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 52,692 psi | 88% | 2470 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 52,939 psi | 88% | 2510 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 51,358 psi | 85% | 2552 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 49,603 psi | 82% | 2539 fps | 98.1% |
| Vihtavuori N540 | <<locked>> | 84% | 54,172 psi | 90% | 2513 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 53,751 psi | 89% | 2605 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 54,085 psi | 90% | 2661 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 50,995 psi | 85% | 2661 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 54,331 psi | 90% | 2572 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 52,678 psi | 88% | 2621 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 43,279 psi | 72% | 2641 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 54,433 psi | 90% | 2572 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 53,882 psi | 90% | 2608 fps | 98.2% |
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 2495 | <<locked>> | 80% | 50,009 psi | 83% | 2428 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 47,964 psi | 80% | 2438 fps | 97.9% |
| Accurate 3100 | <<locked>> | 86% | 32,068 psi | 53% | 2228 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 47,355 psi | 79% | 2434 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 35,752 psi | 59% | 2316 fps | 98.3% |
| Accurate MAGPRO | <<locked>> | 98% | 49,458 psi | 82% | 2644 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 80% | 44,933 psi | 75% | 2415 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 90% | 42,235 psi | 70% | 2448 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 96% | 45,818 psi | 76% | 2539 fps | 95.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 49,182 psi | 82% | 2608 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 45,136 psi | 75% | 2434 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 48,225 psi | 80% | 2497 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,143 psi | 58% | 2326 fps | 98.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 39,595 psi | 66% | 2441 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 41,930 psi | 70% | 2448 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 92% | 39,291 psi | 65% | 2438 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 25,715 psi | 43% | 2110 fps | 96.2% |
| Alliant Reloder-25 | <<locked>> | 90% | 30,792 psi | 51% | 2260 fps | 95.1% |
| Alliant Reloder-26 | 46.7 gr | 82% | 29,022 psi | 48% | 2257 fps | 95.3% |
| Bofors RP15 | <<locked>> | 96% | 41,191 psi | 68% | 2477 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 45,455 psi | 76% | 2448 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 39,291 psi | 65% | 2438 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 40,074 psi | 67% | 2329 fps | 96.3% |
| Hodgdon H380 | <<locked>> | 80% | 45,701 psi | 76% | 2454 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 80% | 37,768 psi | 63% | 2359 fps | 96.3% |
| Hodgdon H4350 | <<locked>> | 80% | 40,886 psi | 68% | 2379 fps | 95.8% |
| Hodgdon H4831 | <<locked>> | 96% | 49,269 psi | 82% | 2549 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 96% | 48,066 psi | 80% | 2533 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,619 psi | 54% | 2231 fps | 98.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 49,821 psi | 83% | 2539 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 38,653 psi | 64% | 2487 fps | 95% |
| Hodgdon Superformance | 47 gr | 80% | 36,622 psi | 61% | 2365 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,180 psi | 45% | 1407 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 51,039 psi | 85% | 2507 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 47,239 psi | 78% | 2444 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 49,313 psi | 82% | 2467 fps | 98.7% |
| IMR 4350 | <<locked>> | 80% | 35,897 psi | 60% | 2267 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,524 psi | 69% | 2359 fps | 97.2% |
| IMR 4831 | <<locked>> | 80% | 34,461 psi | 57% | 2274 fps | 98% |
| IMR 4895 | <<locked>> | 80% | 49,443 psi | 82% | 2520 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 48,211 psi | 80% | 2500 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 98% | 46,760 psi | 78% | 2569 fps | 95.5% |
| Lovex S062 | <<locked>> | 80% | 47,471 psi | 79% | 2441 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 39,088 psi | 65% | 2316 fps | 97.9% |
| Lovex S070 | <<locked>> | 80% | 37,173 psi | 62% | 2293 fps | 96.3% |
| Lovex S071 | <<locked>> | 90% | 31,053 psi | 52% | 2205 fps | 95% |
| Norma 203B | <<locked>> | 80% | 47,572 psi | 79% | 2484 fps | 100% |
| Norma 204 | <<locked>> | 86% | 42,989 psi | 71% | 2448 fps | 95.8% |
| Norma MRP | <<locked>> | 88% | 36,042 psi | 60% | 2398 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 35,636 psi | 59% | 2313 fps | 98.2% |
| Ramshot Big Game | <<locked>> | 80% | 47,819 psi | 79% | 2507 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 46,731 psi | 78% | 2582 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 34,621 psi | 58% | 2300 fps | 96.2% |
| Ramshot Magnum | <<locked>> | 96% | 38,522 psi | 64% | 2411 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,731 psi | 46% | 1444 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 45,803 psi | 76% | 2441 fps | 98.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 42,105 psi | 70% | 2487 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 35,360 psi | 59% | 2333 fps | 97.9% |
| ReloadSwiss RS 70 | 45.2 gr | 80% | 34,679 psi | 58% | 2339 fps | 97.3% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 38,159 psi | 63% | 2477 fps | 96.1% |
| Rottweil R 902 | <<locked>> | 80% | 49,226 psi | 82% | 2451 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 42,612 psi | 71% | 2395 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 46,905 psi | 78% | 2484 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 90% | 40,785 psi | 68% | 2428 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 40,074 psi | 67% | 2329 fps | 96.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,088 psi | 65% | 2316 fps | 97.9% |
| Shooters World Precision | <<locked>> | 80% | 47,471 psi | 79% | 2441 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 37,173 psi | 62% | 2293 fps | 96.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 43,743 psi | 73% | 2448 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 44,237 psi | 73% | 2313 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,189 psi | 63% | 2264 fps | 96.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 40,393 psi | 67% | 2421 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 43,163 psi | 72% | 2398 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 47,863 psi | 80% | 2474 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 32,242 psi | 54% | 2277 fps | 99.7% |
| Somchem S385 | <<locked>> | 86% | 36,550 psi | 61% | 2316 fps | 95.2% |
| Vihtavuori N135 | <<locked>> | 80% | 49,327 psi | 82% | 2415 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 49,371 psi | 82% | 2428 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 41,017 psi | 68% | 2333 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 37,115 psi | 62% | 2313 fps | 98.5% |
| Vihtavuori N165 | <<locked>> | 92% | 38,319 psi | 64% | 2346 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 47,659 psi | 79% | 2425 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,492 psi | 61% | 2313 fps | 98.1% |
| Vihtavuori N555 | <<locked>> | 80% | 28,094 psi | 47% | 2175 fps | 96.3% |
| Vihtavuori N560 | <<locked>> | 96% | 47,703 psi | 79% | 2605 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,187 psi | 60% | 2287 fps | 99.7% |
| Winchester 760 | <<locked>> | 80% | 37,985 psi | 63% | 2362 fps | 96.4% |
| Winchester StaBALL HD | <<locked>> | 82% | 24,163 psi | 40% | 2133 fps | 95.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 51,053 psi | 85% | 2526 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 41,031 psi | 68% | 2402 fps | 95.4% |
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 90 powders for 7 x 64 Brenneke loaded with the .284 | 175gr | Speer Grand Slam. Norma MRP delivers the highest muzzle velocity at 2,726 fps; across all powders the maximum-charge window runs from 1,578 fps to 2,726 fps. Accurate 3100 gives the best case fill at 100 %, and 90 of the 90 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 61–90 %, leaving at least 10 % headroom. The 175.0 gr projectile in 0.284" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2213 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. ReloadSwiss RS 70, Alliant Reloder-26, Hodgdon Superformance rank at the top here: for 7 x 64 Brenneke with the .284 | 175gr | Speer Grand Slam 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.