Load Specifications
Bullet Manufacturer:Nosler
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 | Nosler Partition bullet and 107 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>> | 84% | 57,305 psi | 90% | 2477 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 56,333 psi | 88% | 2507 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 54,215 psi | 85% | 2523 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 55,100 psi | 86% | 2523 fps | 98.4% |
| Accurate 3100ᴾ | <<locked>> | 100% | 43,018 psi | 67% | 2444 fps | 98% |
| Accurate 4064 | <<locked>> | 90% | 56,304 psi | 88% | 2552 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 56,159 psi | 88% | 2648 fps | 100% |
| ADI AR 2206H | <<locked>> | 86% | 56,362 psi | 88% | 2585 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 57,305 psi | 90% | 2585 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 50,850 psi | 80% | 2582 fps | 97% |
| ADI Benchmark 8208 | <<locked>> | 84% | 55,332 psi | 87% | 2536 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 56,666 psi | 89% | 2503 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 56,115 psi | 88% | 2703 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 50,473 psi | 79% | 2579 fps | 97% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 57,595 psi | 90% | 2605 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 54,723 psi | 86% | 2585 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 57,101 psi | 89% | 2694 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 54,839 psi | 86% | 2680 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 49,734 psi | 78% | 2569 fps | 96.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,075 psi | 64% | 2474 fps | 99.9% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 36,216 psi | 57% | 2385 fps | 96.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 45,992 psi | 72% | 2631 fps | 99.6% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 56,304 psi | 88% | 2605 fps | 100% |
| Bofors RP3 | <<locked>> | 90% | 54,723 psi | 86% | 2579 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 54,636 psi | 86% | 2556 fps | 98.5% |
| Hodgdon Benchmark | <<locked>> | 84% | 57,029 psi | 89% | 2516 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 54,839 psi | 86% | 2569 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 56,927 psi | 89% | 2661 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 55,608 psi | 87% | 2592 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 96% | 55,201 psi | 87% | 2648 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 94% | 55,840 psi | 88% | 2612 fps | 98.2% |
| Hodgdon H4895 | <<locked>> | 86% | 56,927 psi | 89% | 2592 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 53,519 psi | 84% | 2579 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 56,652 psi | 89% | 2628 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 55,738 psi | 87% | 2687 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,708 psi | 56% | 1539 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 54,708 psi | 86% | 2549 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 57,348 psi | 90% | 2569 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 56,811 psi | 89% | 2569 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 56,811 psi | 89% | 2559 fps | 99.1% |
| IMR 4350 | <<locked>> | 98% | 54,969 psi | 86% | 2582 fps | 98.6% |
| IMR 4451 Enduron | <<locked>> | 94% | 56,434 psi | 88% | 2582 fps | 99.1% |
| IMR 4831ᴾ | <<locked>> | 100% | 56,565 psi | 89% | 2638 fps | 100% |
| IMR 4895 | <<locked>> | 88% | 56,144 psi | 88% | 2608 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 55,332 psi | 87% | 2536 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 56,449 psi | 88% | 2559 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 55,724 psi | 87% | 2513 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 56,826 psi | 89% | 2562 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 55,985 psi | 88% | 2579 fps | 99.7% |
| Lovex S070 | <<locked>> | 98% | 56,840 psi | 89% | 2612 fps | 99.3% |
| Lovex S071ᴾ | <<locked>> | 100% | 35,839 psi | 56% | 2313 fps | 96.2% |
| Norma 201 | <<locked>> | 86% | 55,158 psi | 86% | 2533 fps | 100% |
| Norma 202 | <<locked>> | 86% | 55,767 psi | 87% | 2530 fps | 100% |
| Norma 203B | <<locked>> | 90% | 57,348 psi | 90% | 2615 fps | 100% |
| Norma 204 | <<locked>> | 98% | 55,535 psi | 87% | 2631 fps | 97.7% |
| Norma MRPᴾ | <<locked>> | 100% | 45,832 psi | 72% | 2589 fps | 97.7% |
| Norma URP | <<locked>> | 98% | 54,955 psi | 86% | 2631 fps | 100% |
| Ramshot Big Game | <<locked>> | 88% | 54,244 psi | 85% | 2595 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 57,392 psi | 90% | 2684 fps | 99.7% |
| Ramshot TAC | <<locked>> | 84% | 55,593 psi | 87% | 2566 fps | 99.8% |
| Ramshot Wild Boar | <<locked>> | 84% | 55,230 psi | 87% | 2575 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,130 psi | 88% | 2543 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,361 psi | 57% | 1578 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 55,709 psi | 87% | 2575 fps | 99.4% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 55,201 psi | 87% | 2644 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 54,592 psi | 86% | 2674 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 55,724 psi | 87% | 2667 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 55,085 psi | 86% | 2697 fps | 100% |
| Rottweil R 901 | <<locked>> | 84% | 56,246 psi | 88% | 2510 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 55,738 psi | 87% | 2533 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 54,607 psi | 86% | 2569 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 52,620 psi | 82% | 2556 fps | 96.2% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 48,443 psi | 76% | 2552 fps | 96.9% |
| Rottweil R 907 | <<locked>> | 94% | 54,636 psi | 86% | 2556 fps | 98.5% |
| Shooters World Long Rifle | <<locked>> | 96% | 55,985 psi | 88% | 2579 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 86% | 56,449 psi | 88% | 2559 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 56,826 psi | 89% | 2562 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 56,840 psi | 89% | 2612 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 56,376 psi | 88% | 2628 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 57,711 psi | 90% | 2592 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 54,737 psi | 86% | 2562 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 56,536 psi | 89% | 2467 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 56,971 psi | 89% | 2470 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 56,362 psi | 88% | 2536 fps | 99.1% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 47,993 psi | 75% | 2549 fps | 96.8% |
| Somchem S321 | <<locked>> | 82% | 56,652 psi | 89% | 2569 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 55,912 psi | 88% | 2467 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 57,450 psi | 90% | 2579 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 54,897 psi | 86% | 2566 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 53,069 psi | 83% | 2635 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 49,197 psi | 77% | 2536 fps | 97.8% |
| Vihtavuori N130 | <<locked>> | 82% | 56,391 psi | 88% | 2428 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 56,826 psi | 89% | 2451 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 55,709 psi | 87% | 2493 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 56,289 psi | 88% | 2510 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 56,275 psi | 88% | 2543 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 57,609 psi | 90% | 2628 fps | 100% |
| Vihtavuori N530 | <<locked>> | 84% | 55,956 psi | 88% | 2536 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 54,288 psi | 85% | 2510 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 56,652 psi | 89% | 2638 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 45,411 psi | 71% | 2543 fps | 99.8% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 53,896 psi | 84% | 2559 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 55,927 psi | 88% | 2582 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 55,390 psi | 87% | 2651 fps | 99.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,709 psi | 58% | 2500 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 86% | 54,592 psi | 86% | 2569 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 46,195 psi | 72% | 2477 fps | 95.9% |
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% | 50,749 psi | 80% | 2398 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,511 psi | 68% | 2343 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 50,734 psi | 80% | 2480 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 42,511 psi | 67% | 2329 fps | 95.9% |
| Accurate 3100 | <<locked>> | 92% | 32,866 psi | 52% | 2251 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 41,147 psi | 64% | 2343 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 30,443 psi | 48% | 2205 fps | 96.1% |
| ADI AR 2206H | <<locked>> | 80% | 46,949 psi | 74% | 2451 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 39,769 psi | 62% | 2316 fps | 99% |
| ADI AR 2209 | <<locked>> | 96% | 44,846 psi | 70% | 2480 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 48,979 psi | 77% | 2451 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 49,647 psi | 78% | 2421 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 42,728 psi | 67% | 2493 fps | 99.5% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 44,570 psi | 70% | 2480 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,653 psi | 62% | 2339 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,569 psi | 67% | 2398 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 30,864 psi | 48% | 2218 fps | 96.3% |
| Alliant Reloder-17 | 68.3 gr | 80% | 34,185 psi | 54% | 2326 fps | 99% |
| Alliant Reloder-19 | <<locked>> | 96% | 43,976 psi | 69% | 2474 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 84% | 25,208 psi | 40% | 2093 fps | 95% |
| Alliant Reloder-25 | <<locked>> | 98% | 34,098 psi | 53% | 2336 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 88% | 30,298 psi | 47% | 2290 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,093 psi | 72% | 2457 fps | 99.6% |
| Bofors RP3 | <<locked>> | 80% | 39,465 psi | 62% | 2346 fps | 99.8% |
| Bofors RP7 | <<locked>> | 84% | 40,118 psi | 63% | 2323 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,589 psi | 79% | 2431 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 47,935 psi | 75% | 2474 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 53,055 psi | 83% | 2608 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,176 psi | 63% | 2352 fps | 98.3% |
| Hodgdon H414 | <<locked>> | 84% | 37,260 psi | 58% | 2346 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 86% | 43,366 psi | 68% | 2415 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 47,384 psi | 74% | 2461 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,253 psi | 44% | 2126 fps | 97% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,439 psi | 68% | 2441 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 39,233 psi | 61% | 2411 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,745 psi | 42% | 1378 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,237 psi | 71% | 2415 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 47,369 psi | 74% | 2441 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,800 psi | 66% | 2346 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,266 psi | 69% | 2369 fps | 97.2% |
| IMR 4350 | <<locked>> | 88% | 40,364 psi | 63% | 2349 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 36,927 psi | 58% | 2257 fps | 95% |
| IMR 4831 | <<locked>> | 80% | 29,559 psi | 46% | 2169 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 43,642 psi | 68% | 2425 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 80% | 48,979 psi | 77% | 2451 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 46,195 psi | 72% | 2428 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,644 psi | 73% | 2385 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 41,872 psi | 66% | 2349 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 34,374 psi | 54% | 2215 fps | 95.9% |
| Lovex S070 | <<locked>> | 84% | 37,014 psi | 58% | 2287 fps | 95.5% |
| Lovex S071 | <<locked>> | 98% | 33,663 psi | 53% | 2267 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 45,832 psi | 72% | 2402 fps | 100% |
| Norma 202 | <<locked>> | 80% | 46,296 psi | 73% | 2405 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,945 psi | 66% | 2388 fps | 99.7% |
| Norma 204 | <<locked>> | 92% | 45,527 psi | 71% | 2477 fps | 95.7% |
| Norma MRP | <<locked>> | 94% | 37,550 psi | 59% | 2428 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 30,719 psi | 48% | 2205 fps | 96% |
| Ramshot Big Game | <<locked>> | 80% | 41,495 psi | 65% | 2402 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 84% | 34,113 psi | 53% | 2287 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 48,820 psi | 77% | 2467 fps | 99.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,428 psi | 76% | 2480 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 80% | 52,533 psi | 82% | 2493 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,108 psi | 42% | 1411 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,509 psi | 63% | 2336 fps | 96.9% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,078 psi | 71% | 2497 fps | 99.7% |
| ReloadSwiss RS 60 | 68.3 gr | 80% | 36,376 psi | 57% | 2382 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 30,153 psi | 47% | 2218 fps | 95.5% |
| ReloadSwiss RS 70 | 71.1 gr | 82% | 32,184 psi | 50% | 2270 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 49,980 psi | 78% | 2428 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,685 psi | 68% | 2359 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 37,043 psi | 58% | 2297 fps | 99.4% |
| Rottweil R 904 | <<locked>> | 98% | 49,414 psi | 77% | 2507 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 96% | 42,598 psi | 67% | 2454 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 84% | 40,118 psi | 63% | 2323 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 34,374 psi | 54% | 2215 fps | 95.9% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,195 psi | 72% | 2428 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,872 psi | 66% | 2349 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 37,014 psi | 58% | 2287 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,029 psi | 60% | 2346 fps | 99.1% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,210 psi | 74% | 2444 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,295 psi | 71% | 2425 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,108 psi | 74% | 2346 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,378 psi | 62% | 2234 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 38,290 psi | 60% | 2257 fps | 95.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 42,206 psi | 66% | 2451 fps | 95.2% |
| Somchem S321 | <<locked>> | 80% | 52,910 psi | 83% | 2520 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 46,688 psi | 73% | 2349 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 46,905 psi | 74% | 2438 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 37,797 psi | 59% | 2300 fps | 99.4% |
| Somchem S365 | <<locked>> | 80% | 27,601 psi | 43% | 2165 fps | 98.2% |
| Somchem S385 | <<locked>> | 94% | 40,509 psi | 63% | 2392 fps | 95.7% |
| Vihtavuori N130 | <<locked>> | 80% | 53,055 psi | 83% | 2388 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 47,500 psi | 74% | 2336 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,366 psi | 68% | 2333 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,758 psi | 69% | 2346 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,955 psi | 56% | 2241 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 32,155 psi | 50% | 2208 fps | 96.5% |
| Vihtavuori N530 | <<locked>> | 80% | 49,124 psi | 77% | 2448 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,235 psi | 66% | 2343 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 31,618 psi | 50% | 2208 fps | 96.1% |
| Vihtavuori N555 | <<locked>> | 84% | 26,948 psi | 42% | 2159 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,763 psi | 50% | 2185 fps | 98.4% |
| Winchester 748 | <<locked>> | 80% | 48,965 psi | 77% | 2490 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 37,362 psi | 59% | 2349 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 88% | 25,135 psi | 39% | 2159 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 44,846 psi | 70% | 2428 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 43,105 psi | 68% | 2425 fps | 95.1% |
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 9.5 x 66 SE v. Hofe loaded with the .375 | 300gr | Nosler Partition. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,703 fps; across all powders the maximum-charge window runs from 1,539 fps to 2,703 fps. Accurate 3100 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 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, ADI AR 2209, Alliant Power Pro Varmint 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 | Nosler Partition 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.