Load Specifications
Bullet Manufacturer:North Fork
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:1:6.0
Load data in caliber 9.3 x 64 Brenneke with .366 | 250gr | NorthFork Bonded Core bullet and 105 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, Hodgdon CFE223 and ReloadSwiss RS 52.
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>> | 90% | 56,739 psi | 89% | 2598 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 57,058 psi | 89% | 2697 fps | 99.5% |
| Accurate 2460 | <<locked>> | 86% | 55,201 psi | 87% | 2628 fps | 100% |
| Accurate 2495 | <<locked>> | 96% | 57,580 psi | 90% | 2657 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 56,884 psi | 89% | 2684 fps | 100% |
| Accurate 2700 | <<locked>> | 94% | 54,839 psi | 86% | 2605 fps | 95.8% |
| Accurate 4064 | <<locked>> | 98% | 57,203 psi | 90% | 2700 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 45,571 psi | 71% | 2612 fps | 97.9% |
| Accurate LT-30 | <<locked>> | 84% | 56,434 psi | 88% | 2546 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 56,913 psi | 89% | 2569 fps | 100% |
| ADI AR 2206H | <<locked>> | 92% | 55,680 psi | 87% | 2690 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 98% | 56,565 psi | 89% | 2684 fps | 99.6% |
| ADI AR 2219 | <<locked>> | 84% | 57,406 psi | 90% | 2667 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 54,940 psi | 86% | 2648 fps | 100% |
| Alliant AR-Comp | <<locked>> | 90% | 54,795 psi | 86% | 2625 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 56,782 psi | 89% | 2749 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 54,940 psi | 86% | 2795 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 55,898 psi | 88% | 2707 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 86% | 56,681 psi | 89% | 2605 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 56,811 psi | 89% | 2726 fps | 99.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 45,658 psi | 72% | 2618 fps | 98% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 52,649 psi | 83% | 2762 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 55,651 psi | 87% | 2549 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 55,506 psi | 87% | 2707 fps | 99.3% |
| Bofors RP3 | <<locked>> | 98% | 56,275 psi | 88% | 2720 fps | 100% |
| Bofors RP7ᴾ | <<locked>> | 100% | 53,722 psi | 84% | 2635 fps | 96% |
| Hodgdon Benchmark | <<locked>> | 90% | 57,261 psi | 90% | 2635 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 92% | 57,566 psi | 90% | 2726 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 88% | 55,477 psi | 87% | 2766 fps | 99.6% |
| Hodgdon H322 | <<locked>> | 86% | 55,796 psi | 87% | 2644 fps | 100% |
| Hodgdon H335 | <<locked>> | 86% | 56,884 psi | 89% | 2674 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 54,201 psi | 85% | 2680 fps | 98.7% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 49,313 psi | 77% | 2661 fps | 95.9% |
| Hodgdon H4895 | <<locked>> | 92% | 56,144 psi | 88% | 2700 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 41,916 psi | 66% | 2513 fps | 98.6% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 54,766 psi | 86% | 2730 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,708 psi | 54% | 1578 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 57,711 psi | 90% | 2703 fps | 100% |
| IMR 3031 | <<locked>> | 92% | 55,550 psi | 87% | 2687 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 55,970 psi | 88% | 2667 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 94% | 56,869 psi | 89% | 2651 fps | 97.1% |
| IMR 4198 | <<locked>> | 86% | 56,927 psi | 89% | 2562 fps | 100% |
| IMR 4451 Enduronᴾ | <<locked>> | 100% | 55,753 psi | 87% | 2667 fps | 96.9% |
| IMR 4831ᴾ | <<locked>> | 100% | 43,743 psi | 69% | 2562 fps | 97.6% |
| IMR 4895 | <<locked>> | 94% | 54,621 psi | 86% | 2710 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 90% | 54,940 psi | 86% | 2648 fps | 100% |
| Lovex D073.5 | <<locked>> | 86% | 55,245 psi | 87% | 2638 fps | 100% |
| Lovex D073.6 | <<locked>> | 92% | 54,592 psi | 86% | 2667 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 55,941 psi | 88% | 2625 fps | 99.8% |
| Lovex S062 | <<locked>> | 96% | 55,506 psi | 87% | 2667 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 51,068 psi | 80% | 2608 fps | 97.5% |
| Lovex S070ᴾ | <<locked>> | 100% | 48,530 psi | 76% | 2589 fps | 95.8% |
| Norma 200 | <<locked>> | 82% | 56,739 psi | 89% | 2579 fps | 100% |
| Norma 201 | <<locked>> | 92% | 54,331 psi | 85% | 2638 fps | 100% |
| Norma 202 | <<locked>> | 92% | 54,824 psi | 86% | 2644 fps | 100% |
| Norma 203B | <<locked>> | 96% | 55,854 psi | 88% | 2713 fps | 99.8% |
| Norma URPᴾ | <<locked>> | 100% | 45,818 psi | 72% | 2608 fps | 97.8% |
| Ramshot Big Game | <<locked>> | 96% | 56,275 psi | 88% | 2740 fps | 99.8% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 45,237 psi | 71% | 2598 fps | 95.8% |
| Ramshot TAC | <<locked>> | 90% | 55,564 psi | 87% | 2664 fps | 98.4% |
| Ramshot Wild Boar | <<locked>> | 90% | 54,665 psi | 86% | 2684 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 88% | 56,304 psi | 88% | 2651 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,940 psi | 55% | 1614 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 54,737 psi | 86% | 2635 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 54,795 psi | 86% | 2664 fps | 97.5% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 56,739 psi | 89% | 2789 fps | 99.7% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 56,304 psi | 88% | 2822 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 45,368 psi | 71% | 2631 fps | 97.6% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 46,862 psi | 73% | 2654 fps | 97.1% |
| Rottweil R 901 | <<locked>> | 90% | 55,521 psi | 87% | 2625 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 54,853 psi | 86% | 2638 fps | 100% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 55,825 psi | 87% | 2707 fps | 100% |
| Rottweil R 907ᴾ | <<locked>> | 100% | 53,722 psi | 84% | 2635 fps | 96% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 51,068 psi | 80% | 2608 fps | 97.5% |
| Shooters World Match Rifle | <<locked>> | 92% | 54,592 psi | 86% | 2667 fps | 100% |
| Shooters World Precision | <<locked>> | 96% | 55,506 psi | 87% | 2667 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 48,530 psi | 76% | 2589 fps | 95.8% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 54,781 psi | 86% | 2608 fps | 99.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 56,811 psi | 89% | 2303 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 54,027 psi | 85% | 2631 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 54,317 psi | 85% | 2720 fps | 99.7% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 57,609 psi | 90% | 2621 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 57,188 psi | 90% | 2690 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 57,522 psi | 90% | 2713 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 56,811 psi | 89% | 2589 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 56,217 psi | 88% | 2582 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 51,532 psi | 81% | 2566 fps | 96.1% |
| Somchem S321 | <<locked>> | 88% | 56,434 psi | 88% | 2684 fps | 100% |
| Somchem S335 | <<locked>> | 92% | 55,535 psi | 87% | 2585 fps | 100% |
| Somchem S341 | <<locked>> | 92% | 56,826 psi | 89% | 2684 fps | 99.8% |
| Somchem S355ᴾ | <<locked>> | 100% | 56,304 psi | 88% | 2703 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 40,828 psi | 64% | 2562 fps | 99.5% |
| Vihtavuori N130 | <<locked>> | 88% | 56,434 psi | 88% | 2552 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 56,681 psi | 89% | 2572 fps | 100% |
| Vihtavuori N135 | <<locked>> | 96% | 57,334 psi | 90% | 2648 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 55,288 psi | 87% | 2621 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 54,650 psi | 86% | 2644 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 48,211 psi | 76% | 2608 fps | 98.1% |
| Vihtavuori N530 | <<locked>> | 90% | 55,637 psi | 87% | 2651 fps | 100% |
| Vihtavuori N540 | <<locked>> | 96% | 56,811 psi | 89% | 2667 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 47,166 psi | 74% | 2612 fps | 97.8% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 49,472 psi | 78% | 2598 fps | 99.6% |
| Winchester 748 | <<locked>> | 90% | 54,650 psi | 86% | 2694 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 49,530 psi | 78% | 2664 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 94% | 57,232 psi | 90% | 2720 fps | 100% |
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% | 41,756 psi | 65% | 2392 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 53,417 psi | 84% | 2644 fps | 99.2% |
| Accurate 2460 | <<locked>> | 80% | 45,324 psi | 71% | 2487 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 34,200 psi | 54% | 2313 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 40,422 psi | 63% | 2444 fps | 99.8% |
| Accurate 2700 | <<locked>> | 92% | 51,517 psi | 81% | 2556 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 32,358 psi | 51% | 2297 fps | 99.3% |
| Accurate 4350 | <<locked>> | 94% | 37,115 psi | 58% | 2457 fps | 95.8% |
| Accurate LT-30 | <<locked>> | 80% | 50,212 psi | 79% | 2464 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 50,604 psi | 79% | 2487 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 38,290 psi | 60% | 2402 fps | 97.4% |
| ADI AR 2208 | <<locked>> | 82% | 34,693 psi | 54% | 2306 fps | 95.4% |
| ADI AR 2219 | <<locked>> | 80% | 50,140 psi | 79% | 2572 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 40,292 psi | 63% | 2415 fps | 98.8% |
| Alliant AR-Comp | <<locked>> | 80% | 39,349 psi | 62% | 2415 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 46,572 psi | 73% | 2595 fps | 99.4% |
| Alliant Power Pro 2000-MR | 60.4 gr | 82% | 36,869 psi | 58% | 2461 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 31,676 psi | 50% | 2280 fps | 96.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 47,297 psi | 74% | 2480 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 34,214 psi | 54% | 2336 fps | 95.5% |
| Alliant Reloder-16 | <<locked>> | 92% | 36,056 psi | 56% | 2421 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 84% | 31,227 psi | 49% | 2333 fps | 95.1% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 48,950 psi | 77% | 2461 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 37,101 psi | 58% | 2395 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 30,937 psi | 48% | 2277 fps | 96.2% |
| Bofors RP7 | <<locked>> | 98% | 50,401 psi | 79% | 2582 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 42,438 psi | 67% | 2411 fps | 99.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 38,348 psi | 60% | 2428 fps | 99% |
| Hodgdon CFE223 | 60.3 gr | 80% | 42,047 psi | 66% | 2549 fps | 97.8% |
| Hodgdon H322 | <<locked>> | 80% | 46,064 psi | 72% | 2513 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 46,601 psi | 73% | 2533 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 39,189 psi | 61% | 2431 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 98% | 46,209 psi | 72% | 2608 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 38,537 psi | 60% | 2411 fps | 98% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 30,792 psi | 48% | 2274 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 34,519 psi | 54% | 2379 fps | 97.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,715 psi | 40% | 1407 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 37,101 psi | 58% | 2369 fps | 97.5% |
| IMR 3031 | <<locked>> | 80% | 37,594 psi | 59% | 2418 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 34,229 psi | 54% | 2293 fps | 95.6% |
| IMR 4166 Enduron | <<locked>> | 88% | 47,195 psi | 74% | 2503 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 47,848 psi | 75% | 2444 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 96% | 49,458 psi | 78% | 2572 fps | 95.6% |
| IMR 4831 | <<locked>> | 94% | 36,114 psi | 57% | 2418 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 34,969 psi | 55% | 2362 fps | 96.5% |
| IMR 8208 XBR | <<locked>> | 80% | 40,292 psi | 63% | 2415 fps | 98.8% |
| Lovex D073.5 | <<locked>> | 80% | 44,976 psi | 70% | 2490 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 36,666 psi | 57% | 2382 fps | 99.4% |
| Lovex S060 | <<locked>> | 80% | 39,059 psi | 61% | 2349 fps | 97.5% |
| Lovex S062 | <<locked>> | 80% | 33,910 psi | 53% | 2300 fps | 97.5% |
| Lovex S065 | <<locked>> | 94% | 42,699 psi | 67% | 2470 fps | 95.6% |
| Lovex S070 | <<locked>> | 98% | 45,527 psi | 71% | 2539 fps | 95.1% |
| Norma 200 | <<locked>> | 80% | 53,214 psi | 83% | 2536 fps | 100% |
| Norma 201 | <<locked>> | 80% | 37,594 psi | 59% | 2362 fps | 98.4% |
| Norma 202 | <<locked>> | 80% | 37,579 psi | 59% | 2375 fps | 99.7% |
| Norma 203B | <<locked>> | 80% | 33,634 psi | 53% | 2326 fps | 96% |
| Norma URP | <<locked>> | 94% | 37,927 psi | 59% | 2461 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 33,025 psi | 52% | 2329 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 98% | 42,482 psi | 67% | 2546 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 40,103 psi | 63% | 2408 fps | 95.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 39,204 psi | 61% | 2431 fps | 97.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 43,555 psi | 68% | 2457 fps | 98.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,005 psi | 41% | 1444 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 45,223 psi | 71% | 2493 fps | 99.9% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 45,208 psi | 71% | 2513 fps | 95.4% |
| ReloadSwiss RS 52 | 57.1 gr | 80% | 35,186 psi | 55% | 2418 fps | 95.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 29,254 psi | 46% | 2290 fps | 96.9% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 37,246 psi | 58% | 2474 fps | 95.3% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 40,915 psi | 64% | 2539 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 41,292 psi | 65% | 2408 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 35,723 psi | 56% | 2316 fps | 97.9% |
| Rottweil R 903 | <<locked>> | 80% | 29,095 psi | 46% | 2224 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 98% | 50,401 psi | 79% | 2582 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 94% | 42,699 psi | 67% | 2470 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 36,666 psi | 57% | 2382 fps | 99.4% |
| Shooters World Precision | <<locked>> | 80% | 33,910 psi | 53% | 2300 fps | 97.5% |
| Shooters World SW4350 | <<locked>> | 98% | 45,527 psi | 71% | 2539 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 47,761 psi | 75% | 2507 fps | 99.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 54,070 psi | 85% | 2274 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 50,560 psi | 79% | 2582 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 32,314 psi | 51% | 2320 fps | 95.2% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 47,950 psi | 75% | 2497 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 38,043 psi | 60% | 2379 fps | 95.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 36,811 psi | 58% | 2369 fps | 96.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,247 psi | 62% | 2329 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,242 psi | 51% | 2205 fps | 99.5% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 48,138 psi | 75% | 2516 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 43,134 psi | 68% | 2487 fps | 99.4% |
| Somchem S335 | <<locked>> | 80% | 38,711 psi | 61% | 2333 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 37,753 psi | 59% | 2382 fps | 97.1% |
| Somchem S355 | <<locked>> | 80% | 30,255 psi | 47% | 2238 fps | 95.3% |
| Somchem S365 | <<locked>> | 88% | 28,036 psi | 44% | 2260 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 44,512 psi | 70% | 2395 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 39,334 psi | 62% | 2329 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 34,650 psi | 54% | 2310 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 35,505 psi | 56% | 2316 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 80% | 28,674 psi | 45% | 2182 fps | 96.2% |
| Vihtavuori N160 | <<locked>> | 92% | 37,420 psi | 59% | 2415 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 40,161 psi | 63% | 2408 fps | 98.9% |
| Vihtavuori N540 | <<locked>> | 80% | 34,113 psi | 53% | 2303 fps | 99.2% |
| Vihtavuori N550 | <<locked>> | 92% | 36,535 psi | 57% | 2415 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 31,372 psi | 49% | 2251 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 39,102 psi | 61% | 2448 fps | 99.3% |
| Winchester 760 | <<locked>> | 98% | 46,456 psi | 73% | 2615 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 35,926 psi | 56% | 2372 fps | 97.3% |
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 115 powders for 9.3 x 64 Brenneke loaded with the .366 | 250gr | NorthFork Bonded Core. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,822 fps; across all powders the maximum-charge window runs from 1,578 fps to 2,822 fps. Accurate 3100 gives the best case fill at 100 %, and 115 of the 115 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 45–90 %, leaving at least 10 % headroom. The 250.0 gr projectile in 0.366" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 4350, Alliant Reloder-16 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, Hodgdon CFE223, ReloadSwiss RS 52 rank at the top here: for 9.3 x 64 Brenneke with the .366 | 250gr | NorthFork Bonded Core they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 3100, Alliant Reloder-26, IMR 4350 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.