Load Specifications
Bullet:.366 | 270gr | Speer Hot-Cor
Bullet Manufacturer:Speer
Bullet Weight:270 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 | 270gr | Speer Hot-Cor bullet and 107 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Power Pro 2000-MR 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>> | 86% | 54,911 psi | 86% | 2484 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 56,724 psi | 89% | 2556 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 56,289 psi | 88% | 2549 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 54,984 psi | 86% | 2572 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 56,231 psi | 88% | 2556 fps | 97.4% |
| Accurate 4064 | <<locked>> | 94% | 56,115 psi | 88% | 2592 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 51,677 psi | 81% | 2621 fps | 99.5% |
| Accurate LT-30 | <<locked>> | 82% | 57,072 psi | 89% | 2467 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 57,508 psi | 90% | 2493 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 57,232 psi | 90% | 2628 fps | 100% |
| ADI AR 2208 | <<locked>> | 94% | 54,694 psi | 86% | 2579 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 88% | 56,405 psi | 88% | 2582 fps | 100% |
| Alliant AR-Comp | <<locked>> | 88% | 56,811 psi | 89% | 2549 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 54,737 psi | 86% | 2631 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 56,724 psi | 89% | 2740 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 54,433 psi | 85% | 2598 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 54,636 psi | 86% | 2487 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 55,013 psi | 86% | 2618 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 50,415 psi | 79% | 2628 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 98% | 54,679 psi | 86% | 2710 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,824 psi | 56% | 2388 fps | 98.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 39,436 psi | 62% | 2520 fps | 97.1% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 56,521 psi | 89% | 2474 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 57,087 psi | 89% | 2644 fps | 99.9% |
| Bofors RP3 | <<locked>> | 94% | 54,824 psi | 86% | 2615 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 55,172 psi | 86% | 2582 fps | 97.5% |
| Hodgdon Benchmark | <<locked>> | 86% | 54,897 psi | 86% | 2520 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 55,550 psi | 87% | 2612 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 57,580 psi | 90% | 2707 fps | 100% |
| Hodgdon H322 | <<locked>> | 84% | 57,276 psi | 90% | 2572 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 54,549 psi | 85% | 2556 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 56,014 psi | 88% | 2625 fps | 99.6% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 54,998 psi | 86% | 2671 fps | 98.2% |
| Hodgdon H4350 | <<locked>> | 98% | 56,188 psi | 88% | 2635 fps | 97.1% |
| Hodgdon H4895 | <<locked>> | 88% | 54,389 psi | 85% | 2592 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 46,499 psi | 73% | 2513 fps | 99.8% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 56,942 psi | 89% | 2667 fps | 100% |
| Hodgdon Superformanceᴾ | <<locked>> | 100% | 56,231 psi | 88% | 2707 fps | 97.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,143 psi | 55% | 1535 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 55,622 psi | 87% | 2592 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 57,435 psi | 90% | 2612 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 57,725 psi | 90% | 2608 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 90% | 54,476 psi | 85% | 2546 fps | 97.9% |
| IMR 4198 | <<locked>> | 82% | 54,882 psi | 86% | 2448 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 51,895 psi | 81% | 2559 fps | 97% |
| IMR 4451 Enduron | <<locked>> | 98% | 57,305 psi | 90% | 2615 fps | 98.2% |
| IMR 4831ᴾ | <<locked>> | 100% | 49,168 psi | 77% | 2569 fps | 99.3% |
| IMR 4895 | <<locked>> | 92% | 56,391 psi | 88% | 2648 fps | 100% |
| IMR 8208 XBR | <<locked>> | 88% | 56,405 psi | 88% | 2582 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 56,681 psi | 89% | 2569 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 56,869 psi | 89% | 2602 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 57,116 psi | 90% | 2559 fps | 100% |
| Lovex S062 | <<locked>> | 94% | 57,188 psi | 90% | 2602 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 56,275 psi | 88% | 2605 fps | 99.1% |
| Lovex S070ᴾ | <<locked>> | 100% | 53,664 psi | 84% | 2592 fps | 98% |
| Norma 201 | <<locked>> | 90% | 55,941 psi | 88% | 2575 fps | 100% |
| Norma 202 | <<locked>> | 90% | 56,507 psi | 89% | 2575 fps | 100% |
| Norma 203B | <<locked>> | 92% | 54,172 psi | 85% | 2608 fps | 100% |
| Norma URPᴾ | <<locked>> | 100% | 51,242 psi | 80% | 2612 fps | 99.4% |
| Ramshot Big Game | <<locked>> | 92% | 54,592 psi | 86% | 2631 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 50,183 psi | 79% | 2608 fps | 98.1% |
| Ramshot TAC | <<locked>> | 88% | 56,826 psi | 89% | 2605 fps | 99.3% |
| Ramshot Wild Boar | <<locked>> | 88% | 56,202 psi | 88% | 2621 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 86% | 57,537 psi | 90% | 2585 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,636 psi | 56% | 1575 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 55,999 psi | 88% | 2562 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 56,652 psi | 89% | 2612 fps | 98.7% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 55,317 psi | 87% | 2680 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 54,549 psi | 85% | 2710 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 51,329 psi | 80% | 2644 fps | 99.4% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 51,764 psi | 81% | 2667 fps | 99.2% |
| Rottweil R 901 | <<locked>> | 88% | 56,927 psi | 89% | 2552 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 56,405 psi | 88% | 2572 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 54,418 psi | 85% | 2602 fps | 100% |
| Rottweil R 907 | <<locked>> | 98% | 55,172 psi | 86% | 2582 fps | 97.5% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 56,275 psi | 88% | 2605 fps | 99.1% |
| Shooters World Match Rifle | <<locked>> | 90% | 56,869 psi | 89% | 2602 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 57,188 psi | 90% | 2602 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 53,664 psi | 84% | 2592 fps | 98% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 55,637 psi | 87% | 2536 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 56,304 psi | 88% | 2661 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 55,463 psi | 87% | 2503 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 55,158 psi | 86% | 2582 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 55,564 psi | 87% | 2602 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 54,549 psi | 85% | 2474 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 54,215 psi | 85% | 2474 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 57,000 psi | 89% | 2566 fps | 98.2% |
| Somchem S321 | <<locked>> | 86% | 57,740 psi | 90% | 2615 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 56,942 psi | 89% | 2513 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 54,621 psi | 86% | 2575 fps | 100% |
| Somchem S355 | <<locked>> | 96% | 55,027 psi | 86% | 2602 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 45,759 psi | 72% | 2569 fps | 100% |
| Vihtavuori N130 | <<locked>> | 86% | 57,609 psi | 90% | 2477 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 54,665 psi | 86% | 2461 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 55,912 psi | 88% | 2536 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 56,869 psi | 89% | 2552 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 56,695 psi | 89% | 2582 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 53,693 psi | 84% | 2608 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 88% | 57,072 psi | 89% | 2582 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 55,100 psi | 86% | 2556 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 52,750 psi | 83% | 2615 fps | 99.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 38,566 psi | 60% | 2457 fps | 98.1% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 54,592 psi | 86% | 2595 fps | 100% |
| Winchester 748 | <<locked>> | 88% | 56,565 psi | 89% | 2625 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 55,230 psi | 87% | 2674 fps | 98.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 31,937 psi | 50% | 2375 fps | 97.6% |
| Winchester StaBALL Match | <<locked>> | 90% | 55,390 psi | 87% | 2608 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% | 45,687 psi | 72% | 2365 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 49,690 psi | 78% | 2464 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 38,174 psi | 60% | 2297 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 44,904 psi | 70% | 2434 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 46,209 psi | 72% | 2408 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 36,100 psi | 57% | 2293 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 32,082 psi | 50% | 2274 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 80% | 53,925 psi | 85% | 2428 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 54,360 psi | 85% | 2454 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 42,018 psi | 66% | 2395 fps | 99% |
| ADI AR 2208 | <<locked>> | 80% | 35,752 psi | 56% | 2260 fps | 97.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 44,034 psi | 69% | 2402 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 80% | 43,816 psi | 69% | 2388 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 51,343 psi | 80% | 2585 fps | 100% |
| Alliant Power Pro 2000-MR | 60.8 gr | 80% | 37,884 psi | 59% | 2418 fps | 97.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,056 psi | 55% | 2280 fps | 98.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 51,517 psi | 81% | 2448 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,782 psi | 59% | 2336 fps | 97.8% |
| Alliant Reloder-16 | <<locked>> | 86% | 33,011 psi | 52% | 2287 fps | 95.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 30,284 psi | 47% | 2247 fps | 96.3% |
| Alliant Reloder-23 | <<locked>> | 94% | 29,936 psi | 47% | 2244 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 96% | 34,403 psi | 54% | 2405 fps | 95.1% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 52,895 psi | 83% | 2431 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 40,901 psi | 64% | 2395 fps | 98% |
| Bofors RP3 | <<locked>> | 80% | 34,534 psi | 54% | 2283 fps | 98.4% |
| Bofors RP7 | <<locked>> | 92% | 45,890 psi | 72% | 2441 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 45,876 psi | 72% | 2392 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 42,438 psi | 67% | 2421 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 46,630 psi | 73% | 2549 fps | 99.4% |
| Hodgdon H322 | <<locked>> | 80% | 50,241 psi | 79% | 2484 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 51,097 psi | 80% | 2510 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 35,491 psi | 56% | 2283 fps | 95.8% |
| Hodgdon H414 | <<locked>> | 92% | 42,453 psi | 67% | 2470 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 92% | 46,601 psi | 73% | 2490 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 42,337 psi | 66% | 2405 fps | 99.4% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 28,326 psi | 44% | 2146 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,130 psi | 60% | 2379 fps | 99.1% |
| Hodgdon Superformance | <<locked>> | 94% | 45,556 psi | 71% | 2543 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,150 psi | 41% | 1371 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,654 psi | 64% | 2362 fps | 99.1% |
| IMR 3031 | <<locked>> | 80% | 41,785 psi | 65% | 2402 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 37,507 psi | 59% | 2290 fps | 97.8% |
| IMR 4166 Enduron | <<locked>> | 82% | 42,627 psi | 67% | 2356 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 51,735 psi | 81% | 2408 fps | 100% |
| IMR 4350 | <<locked>> | 96% | 45,730 psi | 72% | 2464 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 88% | 42,250 psi | 66% | 2379 fps | 95.1% |
| IMR 4831 | <<locked>> | 86% | 31,299 psi | 49% | 2238 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 38,696 psi | 61% | 2365 fps | 98.5% |
| IMR 8208 XBR | <<locked>> | 80% | 44,034 psi | 69% | 2402 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 80% | 49,487 psi | 78% | 2474 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 40,727 psi | 64% | 2375 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 42,264 psi | 66% | 2336 fps | 99% |
| Lovex S062 | <<locked>> | 80% | 37,275 psi | 58% | 2293 fps | 99.1% |
| Lovex S065 | <<locked>> | 86% | 36,796 psi | 58% | 2283 fps | 95.2% |
| Lovex S070 | <<locked>> | 92% | 41,814 psi | 66% | 2402 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 41,089 psi | 64% | 2349 fps | 99.6% |
| Norma 202 | <<locked>> | 80% | 41,234 psi | 65% | 2359 fps | 100% |
| Norma 203B | <<locked>> | 80% | 37,202 psi | 58% | 2326 fps | 98.2% |
| Norma URP | <<locked>> | 86% | 32,764 psi | 51% | 2277 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 36,492 psi | 57% | 2336 fps | 97.8% |
| Ramshot Hunter | <<locked>> | 92% | 38,885 psi | 61% | 2408 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 43,743 psi | 69% | 2405 fps | 97.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 43,178 psi | 68% | 2425 fps | 99.2% |
| Ramshot X-Terminator | <<locked>> | 80% | 47,398 psi | 74% | 2444 fps | 99.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,513 psi | 42% | 1404 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 49,313 psi | 77% | 2474 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 40,944 psi | 64% | 2365 fps | 95.7% |
| ReloadSwiss RS 52 | 58.9 gr | 80% | 39,160 psi | 61% | 2425 fps | 98.2% |
| ReloadSwiss RS 60 | 59.9 gr | 80% | 32,242 psi | 51% | 2310 fps | 99.2% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 34,171 psi | 54% | 2336 fps | 95.6% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 37,043 psi | 58% | 2395 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 45,034 psi | 71% | 2388 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 39,131 psi | 61% | 2306 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 80% | 32,576 psi | 51% | 2234 fps | 97.6% |
| Rottweil R 907 | <<locked>> | 92% | 45,890 psi | 72% | 2441 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 86% | 36,796 psi | 58% | 2283 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 40,727 psi | 64% | 2375 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 37,275 psi | 58% | 2293 fps | 99.1% |
| Shooters World SW4350 | <<locked>> | 92% | 41,814 psi | 66% | 2402 fps | 95.5% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 52,069 psi | 82% | 2490 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,460 psi | 52% | 2274 fps | 97% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 52,301 psi | 82% | 2467 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 41,945 psi | 66% | 2379 fps | 97.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,379 psi | 63% | 2365 fps | 98.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 42,714 psi | 67% | 2310 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,360 psi | 55% | 2192 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 41,104 psi | 64% | 2329 fps | 95% |
| Somchem S321 | <<locked>> | 80% | 47,326 psi | 74% | 2474 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 42,134 psi | 66% | 2313 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 41,640 psi | 65% | 2379 fps | 98.9% |
| Somchem S355 | <<locked>> | 80% | 33,460 psi | 52% | 2238 fps | 97.6% |
| Somchem S365 | <<locked>> | 82% | 25,817 psi | 40% | 2133 fps | 95.8% |
| Vihtavuori N130 | <<locked>> | 80% | 48,283 psi | 76% | 2362 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 42,960 psi | 67% | 2303 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 38,493 psi | 60% | 2293 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,189 psi | 61% | 2303 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 31,865 psi | 50% | 2185 fps | 98.4% |
| Vihtavuori N160 | <<locked>> | 86% | 34,330 psi | 54% | 2280 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 44,019 psi | 69% | 2398 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 80% | 37,550 psi | 59% | 2293 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 33,591 psi | 53% | 2280 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 92% | 29,921 psi | 47% | 2264 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 28,311 psi | 44% | 2113 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 43,221 psi | 68% | 2438 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 42,453 psi | 67% | 2470 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 96% | 28,152 psi | 44% | 2257 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,784 psi | 62% | 2372 fps | 99.1% |
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 107 powders for 9.3 x 64 Brenneke loaded with the .366 | 270gr | Speer Hot-Cor. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,740 fps; across all powders the maximum-charge window runs from 1,535 fps to 2,740 fps. Accurate 4350 gives the best case fill at 100 %, and 107 of the 107 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 50–90 %, leaving at least 10 % headroom. The 270.0 gr projectile in 0.366" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, 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. ReloadSwiss RS 60, Alliant Power Pro 2000-MR, ReloadSwiss RS 52 rank at the top here: for 9.3 x 64 Brenneke with the .366 | 270gr | Speer Hot-Cor 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.