Load Specifications
Bullet Manufacturer:Fox Bullets
Bullet Weight:250 gr
Bullet Diameter:0.366"
Bullet Length:<<locked>>
Caliber:9.3 x 64 Brenneke load data
Case Length (l3):2.519"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:88 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:25.6"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:14.5
Load data in caliber 9.3 x 64 Brenneke with .366 | 250gr | Fox Classic Hunter bullet and 101 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 52 and Hodgdon CFE223.
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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 92% | 54,781 psi | 86% | 2552 fps | 100% |
| Accurate 2200 | <<locked>> | 84% | 55,869 psi | 88% | 2648 fps | 99.1% |
| Accurate 2230 | <<locked>> | 84% | 56,623 psi | 89% | 2657 fps | 99.4% |
| Accurate 2460 | <<locked>> | 90% | 57,058 psi | 89% | 2625 fps | 100% |
| Accurate 2495 | <<locked>> | 98% | 54,491 psi | 85% | 2605 fps | 100% |
| Accurate 2520 | <<locked>> | 94% | 56,521 psi | 89% | 2667 fps | 100% |
| Accurate 2520 | <<locked>> | 94% | 56,521 psi | 89% | 2667 fps | 100% |
| Accurate 4064ᴾ | <<locked>> | 100% | 54,186 psi | 85% | 2641 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 39,726 psi | 62% | 2487 fps | 96% |
| Accurate LT-30 | <<locked>> | 86% | 55,883 psi | 88% | 2510 fps | 100% |
| Accurate LT-32 | <<locked>> | 86% | 56,304 psi | 88% | 2530 fps | 100% |
| ADI AR 2206H | <<locked>> | 96% | 57,537 psi | 90% | 2684 fps | 99.7% |
| ADI AR 2207 | <<locked>> | 84% | 56,971 psi | 89% | 2523 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 54,998 psi | 86% | 2631 fps | 99.1% |
| ADI AR 2219 | <<locked>> | 86% | 56,144 psi | 88% | 2625 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 94% | 57,000 psi | 89% | 2644 fps | 100% |
| Alliant AR-Comp | <<locked>> | 94% | 56,130 psi | 88% | 2621 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 54,737 psi | 86% | 2694 fps | 99.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 98% | 57,305 psi | 90% | 2792 fps | 99.4% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 53,577 psi | 84% | 2648 fps | 99.8% |
| Alliant Reloder-10x | <<locked>> | 88% | 54,955 psi | 86% | 2562 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 98% | 54,781 psi | 86% | 2671 fps | 99.3% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 41,481 psi | 65% | 2507 fps | 96.3% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 47,529 psi | 74% | 2648 fps | 99.2% |
| Alliant Reloder-7 | <<locked>> | 82% | 54,766 psi | 86% | 2503 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 54,897 psi | 86% | 2510 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 57,508 psi | 90% | 2700 fps | 99.2% |
| Bofors RP3ᴾ | <<locked>> | 100% | 53,534 psi | 84% | 2657 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 92% | 56,028 psi | 88% | 2589 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 94% | 55,347 psi | 87% | 2674 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 92% | 57,508 psi | 90% | 2766 fps | 99.6% |
| Hodgdon H322 | <<locked>> | 92% | 56,985 psi | 89% | 2635 fps | 100% |
| Hodgdon H335 | <<locked>> | 86% | 55,201 psi | 87% | 2628 fps | 100% |
| Hodgdon H380ᴾ | <<locked>> | 100% | 55,680 psi | 87% | 2671 fps | 98.5% |
| Hodgdon H4198 | <<locked>> | 84% | 54,447 psi | 85% | 2510 fps | 100% |
| Hodgdon H4895 | <<locked>> | 94% | 54,404 psi | 85% | 2648 fps | 99.7% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 37,608 psi | 59% | 2402 fps | 97% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 55,840 psi | 88% | 2717 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,924 psi | 53% | 1539 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 54,549 psi | 85% | 2631 fps | 99.7% |
| IMR 3031 | <<locked>> | 98% | 54,708 psi | 86% | 2654 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 53,287 psi | 84% | 2598 fps | 99.1% |
| IMR 4166 Enduronᴾ | <<locked>> | 100% | 53,664 psi | 84% | 2569 fps | 95.9% |
| IMR 4198 | <<locked>> | 88% | 55,941 psi | 88% | 2526 fps | 100% |
| IMR 4895 | <<locked>> | 98% | 56,115 psi | 88% | 2700 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 94% | 57,000 psi | 89% | 2644 fps | 100% |
| Lovex D073.4 | <<locked>> | 84% | 57,174 psi | 90% | 2635 fps | 100% |
| Lovex D073.5 | <<locked>> | 90% | 57,043 psi | 89% | 2635 fps | 100% |
| Lovex D073.6 | <<locked>> | 96% | 56,231 psi | 88% | 2664 fps | 100% |
| Lovex S060 | <<locked>> | 94% | 54,824 psi | 86% | 2575 fps | 99.5% |
| Lovex S062ᴾ | <<locked>> | 100% | 56,782 psi | 89% | 2654 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 46,267 psi | 73% | 2503 fps | 95.9% |
| Norma 200 | <<locked>> | 84% | 54,882 psi | 86% | 2536 fps | 100% |
| Norma 201 | <<locked>> | 96% | 55,753 psi | 87% | 2631 fps | 100% |
| Norma 202 | <<locked>> | 96% | 56,391 psi | 88% | 2638 fps | 100% |
| Norma 203Bᴾ | <<locked>> | 100% | 57,101 psi | 89% | 2703 fps | 99.7% |
| Norma URPᴾ | <<locked>> | 100% | 40,828 psi | 64% | 2490 fps | 96% |
| Ramshot Big Game | <<locked>> | 98% | 54,331 psi | 85% | 2684 fps | 99.4% |
| Ramshot TAC | <<locked>> | 92% | 54,186 psi | 85% | 2612 fps | 97.6% |
| Ramshot Wild Boar | <<locked>> | 94% | 56,608 psi | 89% | 2677 fps | 99.6% |
| Ramshot X-Terminator | <<locked>> | 90% | 55,114 psi | 86% | 2605 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,272 psi | 54% | 1578 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 57,116 psi | 90% | 2638 fps | 100% |
| ReloadSwiss RS 50ᴾ | <<locked>> | 100% | 56,739 psi | 89% | 2654 fps | 97.2% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 54,418 psi | 85% | 2730 fps | 99.3% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 50,879 psi | 80% | 2713 fps | 100% |
| Rottweil R 901 | <<locked>> | 94% | 56,811 psi | 89% | 2615 fps | 100% |
| Rottweil R 902 | <<locked>> | 98% | 56,130 psi | 88% | 2625 fps | 100% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 49,647 psi | 78% | 2598 fps | 99.5% |
| Shooters World AR Plus | <<locked>> | 84% | 57,174 psi | 90% | 2635 fps | 100% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 46,267 psi | 73% | 2503 fps | 95.9% |
| Shooters World Match Rifle | <<locked>> | 96% | 56,231 psi | 88% | 2664 fps | 100% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 56,782 psi | 89% | 2654 fps | 100% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 57,334 psi | 90% | 2608 fps | 99.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 56,478 psi | 89% | 2277 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 56,188 psi | 88% | 2635 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 52,040 psi | 82% | 2661 fps | 99.3% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 56,391 psi | 88% | 2582 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 94% | 55,579 psi | 87% | 2635 fps | 98.3% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 55,883 psi | 88% | 2661 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 55,303 psi | 87% | 2539 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 54,650 psi | 86% | 2536 fps | 100% |
| Somchem S321 | <<locked>> | 90% | 54,621 psi | 86% | 2635 fps | 100% |
| Somchem S335 | <<locked>> | 96% | 57,174 psi | 90% | 2579 fps | 100% |
| Somchem S341 | <<locked>> | 94% | 54,984 psi | 86% | 2631 fps | 99.4% |
| Somchem S355ᴾ | <<locked>> | 100% | 50,952 psi | 80% | 2602 fps | 99.4% |
| Somchem S365ᴾ | <<locked>> | 100% | 36,260 psi | 57% | 2441 fps | 98.1% |
| Unknown powderᴾ | <<locked>> | 100% | 45,194 psi | 71% | 2552 fps | 96.4% |
| Vihtavuori N120 | <<locked>> | 86% | 56,333 psi | 88% | 2464 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 57,406 psi | 90% | 2543 fps | 100% |
| Vihtavuori N133 | <<locked>> | 98% | 57,276 psi | 90% | 2556 fps | 100% |
| Vihtavuori N135 | <<locked>> | 98% | 54,824 psi | 86% | 2595 fps | 100% |
| Vihtavuori N140 | <<locked>> | 98% | 55,854 psi | 88% | 2605 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 42,786 psi | 67% | 2451 fps | 99.3% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 45,687 psi | 72% | 2533 fps | 97% |
| Vihtavuori N530 | <<locked>> | 92% | 56,898 psi | 89% | 2654 fps | 100% |
| Vihtavuori N540 | <<locked>> | 98% | 55,506 psi | 87% | 2635 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 45,310 psi | 71% | 2572 fps | 97% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 44,759 psi | 70% | 2490 fps | 98.6% |
| Winchester 748 | <<locked>> | 92% | 57,667 psi | 90% | 2703 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 88% | 53,969 psi | 85% | 2648 fps | 99.7% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 37,666 psi | 59% | 2303 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 48,950 psi | 77% | 2546 fps | 98.3% |
| Accurate 2230 | <<locked>> | 80% | 48,979 psi | 77% | 2552 fps | 98.6% |
| Accurate 2460 | <<locked>> | 80% | 40,698 psi | 64% | 2392 fps | 99.7% |
| Accurate 2495 | <<locked>> | 80% | 29,646 psi | 46% | 2208 fps | 99.8% |
| Accurate 2520 | <<locked>> | 80% | 34,519 psi | 54% | 2323 fps | 98.7% |
| Accurate 2520 | <<locked>> | 80% | 34,519 psi | 54% | 2323 fps | 98.7% |
| Accurate 4064 | <<locked>> | 80% | 28,108 psi | 44% | 2188 fps | 98% |
| Accurate 4350 | <<locked>> | 98% | 37,144 psi | 58% | 2438 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 80% | 46,514 psi | 73% | 2385 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 46,876 psi | 73% | 2402 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 80% | 34,548 psi | 54% | 2300 fps | 95.7% |
| ADI AR 2207 | <<locked>> | 80% | 50,372 psi | 79% | 2441 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 35,592 psi | 56% | 2303 fps | 95.1% |
| ADI AR 2219 | <<locked>> | 80% | 45,687 psi | 72% | 2484 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 36,593 psi | 57% | 2320 fps | 97.6% |
| Alliant AR-Comp | <<locked>> | 80% | 34,954 psi | 55% | 2326 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 42,061 psi | 66% | 2493 fps | 98.4% |
| Alliant Power Pro 2000-MR | 58.9 gr | 86% | 38,174 psi | 60% | 2457 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 29,965 psi | 47% | 2224 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 42,989 psi | 67% | 2398 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 34,925 psi | 55% | 2329 fps | 95.2% |
| Alliant Reloder-16 | <<locked>> | 98% | 38,928 psi | 61% | 2454 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 90% | 34,127 psi | 53% | 2382 fps | 95.6% |
| Alliant Reloder-7 | <<locked>> | 80% | 51,329 psi | 80% | 2461 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 45,150 psi | 71% | 2382 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 38,334 psi | 60% | 2395 fps | 95.6% |
| Bofors RP3 | <<locked>> | 84% | 31,140 psi | 49% | 2267 fps | 95.8% |
| Hodgdon Benchmark | <<locked>> | 80% | 38,798 psi | 61% | 2320 fps | 98.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 34,258 psi | 54% | 2326 fps | 97.7% |
| Hodgdon CFE223 | 56 gr | 80% | 37,782 psi | 59% | 2438 fps | 96.1% |
| Hodgdon H322 | <<locked>> | 80% | 38,653 psi | 61% | 2365 fps | 99.9% |
| Hodgdon H335 | <<locked>> | 80% | 44,831 psi | 70% | 2480 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 39,900 psi | 63% | 2421 fps | 95.3% |
| Hodgdon H4198 | <<locked>> | 80% | 48,254 psi | 76% | 2425 fps | 100% |
| Hodgdon H4895 | <<locked>> | 80% | 34,751 psi | 54% | 2310 fps | 96.4% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 33,170 psi | 52% | 2306 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 31,096 psi | 49% | 2274 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,121 psi | 39% | 1375 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 33,243 psi | 52% | 2260 fps | 95.8% |
| IMR 3031 | <<locked>> | 80% | 30,458 psi | 48% | 2254 fps | 99.5% |
| IMR 4064 | <<locked>> | 86% | 34,751 psi | 54% | 2280 fps | 95.1% |
| IMR 4166 Enduron | <<locked>> | 98% | 50,618 psi | 79% | 2523 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 44,208 psi | 69% | 2369 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 33,417 psi | 52% | 2310 fps | 95.4% |
| IMR 8208 XBR | <<locked>> | 80% | 36,593 psi | 57% | 2320 fps | 97.6% |
| Lovex D073.4 | <<locked>> | 80% | 49,806 psi | 78% | 2539 fps | 100% |
| Lovex D073.5 | <<locked>> | 80% | 40,277 psi | 63% | 2392 fps | 99.1% |
| Lovex D073.6 | <<locked>> | 80% | 32,401 psi | 51% | 2280 fps | 98.2% |
| Lovex S060 | <<locked>> | 80% | 35,737 psi | 56% | 2257 fps | 96% |
| Lovex S062 | <<locked>> | 80% | 30,255 psi | 47% | 2198 fps | 95.7% |
| Lovex S065 | <<locked>> | 98% | 43,395 psi | 68% | 2454 fps | 95.2% |
| Norma 200 | <<locked>> | 80% | 48,385 psi | 76% | 2454 fps | 100% |
| Norma 201 | <<locked>> | 80% | 33,750 psi | 53% | 2264 fps | 96.9% |
| Norma 202 | <<locked>> | 80% | 33,794 psi | 53% | 2280 fps | 99% |
| Norma 203B | <<locked>> | 84% | 34,229 psi | 54% | 2320 fps | 95.7% |
| Norma URP | <<locked>> | 98% | 38,450 psi | 60% | 2444 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 84% | 33,910 psi | 53% | 2326 fps | 95.1% |
| Ramshot TAC | <<locked>> | 86% | 44,585 psi | 70% | 2461 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 35,288 psi | 55% | 2326 fps | 95.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 39,842 psi | 62% | 2362 fps | 97% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,338 psi | 40% | 1407 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 41,147 psi | 64% | 2402 fps | 99.5% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 46,586 psi | 73% | 2503 fps | 95.1% |
| ReloadSwiss RS 52 | 55.7 gr | 84% | 35,926 psi | 56% | 2411 fps | 95.5% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 28,065 psi | 44% | 2231 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 37,130 psi | 58% | 2313 fps | 99.3% |
| Rottweil R 902 | <<locked>> | 80% | 32,140 psi | 50% | 2218 fps | 96.4% |
| Rottweil R 903 | <<locked>> | 86% | 31,241 psi | 49% | 2264 fps | 95.5% |
| Shooters World AR Plus | <<locked>> | 80% | 49,806 psi | 78% | 2539 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 98% | 43,395 psi | 68% | 2454 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 32,401 psi | 51% | 2280 fps | 98.2% |
| Shooters World Precision | <<locked>> | 80% | 30,255 psi | 47% | 2198 fps | 95.7% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 43,671 psi | 68% | 2415 fps | 98.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 50,894 psi | 80% | 2215 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 45,963 psi | 72% | 2490 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 35,273 psi | 55% | 2362 fps | 95.7% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 43,787 psi | 69% | 2411 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 42,090 psi | 66% | 2431 fps | 95.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 33,228 psi | 52% | 2270 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 35,694 psi | 56% | 2241 fps | 99.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,993 psi | 45% | 2116 fps | 98.6% |
| Somchem S321 | <<locked>> | 80% | 38,870 psi | 61% | 2388 fps | 98.4% |
| Somchem S335 | <<locked>> | 80% | 35,085 psi | 55% | 2244 fps | 99.6% |
| Somchem S341 | <<locked>> | 80% | 33,910 psi | 53% | 2280 fps | 95.3% |
| Somchem S355 | <<locked>> | 86% | 32,619 psi | 51% | 2277 fps | 95.6% |
| Somchem S365 | <<locked>> | 94% | 30,037 psi | 47% | 2293 fps | 95.7% |
| Unknown powder | <<locked>> | 98% | 42,511 psi | 67% | 2503 fps | 95.6% |
| Vihtavuori N120 | <<locked>> | 80% | 47,166 psi | 74% | 2352 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 39,798 psi | 62% | 2303 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 33,373 psi | 52% | 2201 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 80% | 30,734 psi | 48% | 2218 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 31,473 psi | 49% | 2215 fps | 98.7% |
| Vihtavuori N150 | <<locked>> | 86% | 27,514 psi | 43% | 2139 fps | 95.2% |
| Vihtavuori N160 | <<locked>> | 96% | 40,045 psi | 63% | 2431 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 38,319 psi | 60% | 2365 fps | 98.2% |
| Vihtavuori N540 | <<locked>> | 80% | 31,125 psi | 49% | 2231 fps | 98.3% |
| Vihtavuori N550 | <<locked>> | 96% | 39,740 psi | 62% | 2474 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 34,345 psi | 54% | 2290 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 37,826 psi | 59% | 2402 fps | 98.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 40,364 psi | 63% | 2438 fps | 98% |
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 101 powders for 9.3 x 64 Brenneke loaded with the .366 | 250gr | Fox Classic Hunter. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,792 fps; across all powders the maximum-charge window runs from 1,539 fps to 2,792 fps. Accurate 4064 gives the best case fill at 100 %, and 101 of the 101 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. The 250.0 gr projectile in 0.366" calls for a 1:14.5 twist; slower twists will usually not stabilise this weight. Accurate 4064, Accurate 4350, ADI AR 2208 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 2000-MR, ReloadSwiss RS 52, Hodgdon CFE223 rank at the top here: for 9.3 x 64 Brenneke with the .366 | 250gr | Fox Classic Hunter 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.