Load Specifications
Bullet:.375 | 300gr | Norma ORYX
Bullet Manufacturer:Norma
Bullet Weight:300 gr
Bullet Diameter:0.375"
Bullet Length:<<locked>>
Caliber:9.5 x 66 SE v. Hofe load data
Case Length (l3):2.598"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:106 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 9.5 x 66 SE v. Hofe with .375 | 300gr | Norma ORYX bullet and 109 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-17, ReloadSwiss RS 60 and ReloadSwiss RS 70.
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>> | 82% | 54,752 psi | 86% | 2451 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 57,174 psi | 90% | 2520 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 55,042 psi | 86% | 2539 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 55,883 psi | 88% | 2539 fps | 98.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,121 psi | 69% | 2467 fps | 98.3% |
| Accurate 4064 | <<locked>> | 90% | 57,377 psi | 90% | 2572 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 57,334 psi | 90% | 2667 fps | 100% |
| ADI AR 2206H | <<locked>> | 86% | 57,305 psi | 90% | 2602 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 54,810 psi | 86% | 2559 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 51,692 psi | 81% | 2602 fps | 97.3% |
| ADI Benchmark 8208 | <<locked>> | 84% | 56,086 psi | 88% | 2552 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 57,392 psi | 90% | 2516 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 57,188 psi | 90% | 2723 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 55,143 psi | 86% | 2582 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 55,448 psi | 87% | 2598 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 54,636 psi | 86% | 2671 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 55,840 psi | 88% | 2700 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 50,749 psi | 80% | 2595 fps | 97.3% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 44,454 psi | 70% | 2539 fps | 96% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,901 psi | 66% | 2493 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 36,854 psi | 58% | 2408 fps | 97.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 46,992 psi | 74% | 2654 fps | 99.8% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 57,130 psi | 90% | 2625 fps | 100% |
| Bofors RP3 | <<locked>> | 90% | 55,695 psi | 87% | 2595 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 44,454 psi | 70% | 2539 fps | 96% |
| Bofors RP7 | <<locked>> | 94% | 55,637 psi | 87% | 2579 fps | 98.8% |
| Hodgdon Benchmark | <<locked>> | 82% | 54,259 psi | 85% | 2487 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,593 psi | 87% | 2582 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 56,492 psi | 89% | 2612 fps | 100% |
| Hodgdon H414 | <<locked>> | 96% | 56,217 psi | 88% | 2667 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 94% | 56,666 psi | 89% | 2628 fps | 98.4% |
| Hodgdon H4895 | <<locked>> | 84% | 54,331 psi | 85% | 2566 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 54,607 psi | 86% | 2598 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 57,667 psi | 90% | 2644 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 56,782 psi | 89% | 2707 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,882 psi | 56% | 1549 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 55,419 psi | 87% | 2566 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 54,665 psi | 86% | 2543 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 54,360 psi | 85% | 2543 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 57,435 psi | 90% | 2575 fps | 99.3% |
| IMR 4350 | <<locked>> | 98% | 55,927 psi | 88% | 2605 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 94% | 57,392 psi | 90% | 2605 fps | 99.2% |
| IMR 4831ᴾ | <<locked>> | 100% | 57,609 psi | 90% | 2654 fps | 100% |
| IMR 4895 | <<locked>> | 88% | 56,869 psi | 89% | 2625 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 56,086 psi | 88% | 2552 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 57,232 psi | 90% | 2575 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 56,449 psi | 88% | 2530 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 54,172 psi | 85% | 2536 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 56,826 psi | 89% | 2595 fps | 99.8% |
| Lovex S070 | <<locked>> | 96% | 54,476 psi | 85% | 2589 fps | 99.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 36,695 psi | 57% | 2336 fps | 96.5% |
| Norma 201 | <<locked>> | 86% | 55,941 psi | 88% | 2549 fps | 100% |
| Norma 202 | <<locked>> | 86% | 56,550 psi | 89% | 2546 fps | 100% |
| Norma 203B | <<locked>> | 88% | 54,679 psi | 86% | 2589 fps | 100% |
| Norma 204 | <<locked>> | 98% | 56,434 psi | 88% | 2651 fps | 98% |
| Norma MRPᴾ | <<locked>> | 100% | 46,789 psi | 73% | 2612 fps | 98% |
| Norma URP | <<locked>> | 98% | 55,970 psi | 88% | 2651 fps | 100% |
| Ramshot Big Game | <<locked>> | 88% | 55,303 psi | 87% | 2615 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 54,665 psi | 86% | 2654 fps | 99.6% |
| Ramshot TAC | <<locked>> | 84% | 56,376 psi | 88% | 2582 fps | 99.8% |
| Ramshot Wild Boar | <<locked>> | 84% | 56,130 psi | 88% | 2595 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,782 psi | 89% | 2556 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,361 psi | 57% | 1585 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 56,666 psi | 89% | 2598 fps | 99.5% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 56,217 psi | 88% | 2664 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 55,651 psi | 87% | 2694 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 56,956 psi | 89% | 2690 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 56,144 psi | 88% | 2720 fps | 100% |
| Rottweil R 901 | <<locked>> | 84% | 56,884 psi | 89% | 2523 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 56,492 psi | 89% | 2546 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 55,564 psi | 87% | 2589 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 53,534 psi | 84% | 2575 fps | 96.5% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 49,371 psi | 77% | 2575 fps | 97.2% |
| Rottweil R 907 | <<locked>> | 94% | 55,637 psi | 87% | 2579 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 96% | 56,826 psi | 89% | 2595 fps | 99.8% |
| Shooters World Match Rifle | <<locked>> | 86% | 57,232 psi | 90% | 2575 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 54,172 psi | 85% | 2536 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 54,476 psi | 85% | 2589 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 57,188 psi | 90% | 2644 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 54,926 psi | 86% | 2562 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,622 psi | 87% | 2579 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 57,305 psi | 90% | 2484 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 57,653 psi | 90% | 2484 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 57,058 psi | 89% | 2556 fps | 99.2% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 48,892 psi | 77% | 2572 fps | 97.1% |
| Somchem S321 | <<locked>> | 82% | 57,377 psi | 90% | 2582 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 56,637 psi | 89% | 2480 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 54,476 psi | 85% | 2549 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 55,840 psi | 88% | 2585 fps | 100% |
| Somchem S361ᴾ | <<locked>> | 100% | 55,434 psi | 87% | 2572 fps | 95.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 54,186 psi | 85% | 2651 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,285 psi | 79% | 2559 fps | 98.1% |
| Vihtavuori N130 | <<locked>> | 82% | 57,072 psi | 89% | 2444 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 57,624 psi | 90% | 2467 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 56,521 psi | 89% | 2507 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 57,029 psi | 89% | 2523 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 57,130 psi | 90% | 2559 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 54,868 psi | 86% | 2598 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 43,337 psi | 68% | 2434 fps | 96.1% |
| Vihtavuori N530 | <<locked>> | 84% | 56,710 psi | 89% | 2552 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 55,172 psi | 86% | 2526 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 57,624 psi | 90% | 2654 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,253 psi | 72% | 2559 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 54,882 psi | 86% | 2575 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 56,898 psi | 89% | 2598 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 56,420 psi | 88% | 2671 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,521 psi | 59% | 2523 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 86% | 55,492 psi | 87% | 2585 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 46,992 psi | 74% | 2497 fps | 96.3% |
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% | 51,445 psi | 81% | 2411 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 44,396 psi | 70% | 2359 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,532 psi | 81% | 2497 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 43,149 psi | 68% | 2346 fps | 96.2% |
| Accurate 3100 | <<locked>> | 92% | 33,562 psi | 53% | 2270 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 41,989 psi | 66% | 2362 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 30,966 psi | 49% | 2221 fps | 96.5% |
| ADI AR 2206H | <<locked>> | 80% | 47,485 psi | 74% | 2464 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 40,466 psi | 63% | 2336 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 94% | 42,772 psi | 67% | 2451 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,588 psi | 78% | 2464 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 50,415 psi | 79% | 2438 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,381 psi | 68% | 2513 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,277 psi | 63% | 2356 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,163 psi | 68% | 2415 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,343 psi | 49% | 2234 fps | 96.6% |
| Alliant Reloder-17 | 69.4 gr | 80% | 34,766 psi | 54% | 2346 fps | 99.2% |
| Alliant Reloder-19 | <<locked>> | 94% | 42,032 psi | 66% | 2444 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 98% | 41,640 psi | 65% | 2487 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 84% | 25,628 psi | 40% | 2113 fps | 95.5% |
| Alliant Reloder-25 | <<locked>> | 96% | 32,605 psi | 51% | 2306 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 88% | 30,966 psi | 49% | 2313 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,746 psi | 73% | 2477 fps | 99.7% |
| Bofors RP3 | <<locked>> | 80% | 40,074 psi | 63% | 2362 fps | 99.9% |
| Bofors RP5 | <<locked>> | 98% | 41,640 psi | 65% | 2487 fps | 95.2% |
| Bofors RP7 | <<locked>> | 82% | 38,319 psi | 60% | 2293 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,169 psi | 80% | 2448 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,704 psi | 76% | 2490 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,712 psi | 64% | 2369 fps | 98.5% |
| Hodgdon H414 | <<locked>> | 84% | 37,855 psi | 59% | 2365 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 84% | 41,394 psi | 65% | 2385 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 47,964 psi | 75% | 2474 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,732 psi | 45% | 2142 fps | 97.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,193 psi | 69% | 2457 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 39,827 psi | 62% | 2428 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,731 psi | 42% | 1381 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,977 psi | 72% | 2431 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 48,095 psi | 75% | 2457 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,525 psi | 67% | 2365 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,904 psi | 70% | 2385 fps | 97.4% |
| IMR 4350 | <<locked>> | 86% | 38,537 psi | 60% | 2323 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 37,420 psi | 59% | 2274 fps | 95.3% |
| IMR 4831 | <<locked>> | 80% | 30,168 psi | 47% | 2188 fps | 96.2% |
| IMR 4895 | <<locked>> | 80% | 44,222 psi | 69% | 2441 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 80% | 49,588 psi | 78% | 2464 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 46,978 psi | 74% | 2444 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,224 psi | 74% | 2402 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 42,496 psi | 67% | 2365 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 35,012 psi | 55% | 2231 fps | 96.2% |
| Lovex S070 | <<locked>> | 82% | 35,273 psi | 55% | 2257 fps | 95% |
| Lovex S071 | <<locked>> | 98% | 34,360 psi | 54% | 2290 fps | 95.8% |
| Norma 201 | <<locked>> | 80% | 46,615 psi | 73% | 2418 fps | 100% |
| Norma 202 | <<locked>> | 80% | 46,891 psi | 73% | 2418 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,511 psi | 67% | 2405 fps | 99.8% |
| Norma 204 | <<locked>> | 90% | 43,294 psi | 68% | 2448 fps | 95.2% |
| Norma MRP | <<locked>> | 94% | 38,290 psi | 60% | 2451 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 31,372 psi | 49% | 2224 fps | 96.4% |
| Ramshot Big Game | <<locked>> | 80% | 42,163 psi | 66% | 2418 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 84% | 34,809 psi | 55% | 2310 fps | 95.7% |
| Ramshot TAC | <<locked>> | 80% | 49,487 psi | 78% | 2484 fps | 99.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,110 psi | 77% | 2497 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 80% | 53,374 psi | 84% | 2510 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,079 psi | 42% | 1414 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,089 psi | 64% | 2352 fps | 97.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,861 psi | 72% | 2513 fps | 99.8% |
| ReloadSwiss RS 60 | 69.4 gr | 80% | 36,999 psi | 58% | 2398 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 30,734 psi | 48% | 2238 fps | 95.9% |
| ReloadSwiss RS 70 | 72.3 gr | 82% | 32,779 psi | 51% | 2293 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 50,662 psi | 79% | 2444 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,295 psi | 69% | 2375 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 37,782 psi | 59% | 2316 fps | 99.6% |
| Rottweil R 904 | <<locked>> | 96% | 47,108 psi | 74% | 2477 fps | 95% |
| Rottweil R 905 | <<locked>> | 96% | 43,323 psi | 68% | 2474 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 82% | 38,319 psi | 60% | 2293 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 35,012 psi | 55% | 2231 fps | 96.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,978 psi | 74% | 2444 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,496 psi | 67% | 2365 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 35,273 psi | 55% | 2257 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,725 psi | 61% | 2362 fps | 99.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,877 psi | 75% | 2461 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,006 psi | 72% | 2441 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,732 psi | 75% | 2362 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,914 psi | 63% | 2247 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 36,361 psi | 57% | 2224 fps | 95.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 42,931 psi | 67% | 2470 fps | 95.6% |
| Somchem S321 | <<locked>> | 80% | 53,664 psi | 84% | 2536 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 47,442 psi | 74% | 2365 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,558 psi | 75% | 2454 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 38,522 psi | 60% | 2320 fps | 99.6% |
| Somchem S361 | <<locked>> | 98% | 51,764 psi | 81% | 2523 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 28,079 psi | 44% | 2182 fps | 98.5% |
| Somchem S385 | <<locked>> | 92% | 38,740 psi | 61% | 2365 fps | 95.3% |
| Vihtavuori N130 | <<locked>> | 80% | 53,708 psi | 84% | 2405 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 48,138 psi | 75% | 2349 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,077 psi | 69% | 2349 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,512 psi | 70% | 2362 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,622 psi | 57% | 2257 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 32,634 psi | 51% | 2224 fps | 96.8% |
| Vihtavuori N165 | <<locked>> | 98% | 40,582 psi | 64% | 2385 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 49,719 psi | 78% | 2461 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,772 psi | 67% | 2356 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 32,097 psi | 50% | 2224 fps | 96.4% |
| Vihtavuori N555 | <<locked>> | 84% | 27,543 psi | 43% | 2178 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,242 psi | 51% | 2201 fps | 98.6% |
| Winchester 748 | <<locked>> | 80% | 49,763 psi | 78% | 2507 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 35,578 psi | 56% | 2316 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 88% | 25,556 psi | 40% | 2182 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,542 psi | 71% | 2444 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 43,845 psi | 69% | 2444 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 122 powders for 9.5 x 66 SE v. Hofe loaded with the .375 | 300gr | Norma ORYX. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,723 fps; across all powders the maximum-charge window runs from 1,549 fps to 2,723 fps. Accurate 3100 gives the best case fill at 100 %, and 122 of the 122 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 300.0 gr projectile in 0.375" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2209 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-17, ReloadSwiss RS 60, ReloadSwiss RS 70 rank at the top here: for 9.5 x 66 SE v. Hofe with the .375 | 300gr | Norma ORYX they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, ADI AR 2213, Bofors RP15 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.