Load Specifications
Bullet:.375 | 300gr | Nosler Solid
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 Solid bullet and 103 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 Superformance and Alliant Reloder-17.
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% | 55,999 psi | 88% | 2451 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 54,795 psi | 86% | 2480 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 56,623 psi | 89% | 2543 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 57,348 psi | 90% | 2539 fps | 98.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 41,539 psi | 65% | 2411 fps | 97.5% |
| Accurate 4064 | <<locked>> | 90% | 54,955 psi | 86% | 2530 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 54,534 psi | 85% | 2615 fps | 100% |
| ADI AR 2206H | <<locked>> | 86% | 55,071 psi | 86% | 2556 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 55,999 psi | 88% | 2559 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 49,487 psi | 78% | 2546 fps | 96.4% |
| ADI Benchmark 8208 | <<locked>> | 86% | 57,493 psi | 90% | 2552 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 55,172 psi | 86% | 2480 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 54,708 psi | 86% | 2674 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 56,159 psi | 88% | 2579 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 56,739 psi | 89% | 2598 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 55,637 psi | 87% | 2664 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 96% | 56,942 psi | 89% | 2697 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 48,385 psi | 76% | 2536 fps | 96.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 39,784 psi | 62% | 2438 fps | 99.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 44,382 psi | 70% | 2589 fps | 99.3% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 54,810 psi | 86% | 2575 fps | 100% |
| Bofors RP3 | <<locked>> | 92% | 56,869 psi | 89% | 2592 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 56,855 psi | 89% | 2575 fps | 98.7% |
| Hodgdon Benchmark | <<locked>> | 84% | 55,724 psi | 87% | 2490 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 57,130 psi | 90% | 2585 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 55,332 psi | 87% | 2631 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 54,273 psi | 85% | 2566 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 98% | 57,334 psi | 90% | 2664 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 94% | 54,418 psi | 85% | 2579 fps | 97.8% |
| Hodgdon H4895 | <<locked>> | 86% | 55,637 psi | 87% | 2566 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 51,982 psi | 81% | 2549 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 55,042 psi | 86% | 2598 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 53,969 psi | 85% | 2648 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,592 psi | 56% | 1529 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 56,927 psi | 89% | 2566 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 55,767 psi | 87% | 2543 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 55,622 psi | 87% | 2543 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 55,564 psi | 87% | 2530 fps | 98.9% |
| IMR 4350ᴾ | <<locked>> | 100% | 56,956 psi | 89% | 2598 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 94% | 55,274 psi | 87% | 2556 fps | 98.8% |
| IMR 4831ᴾ | <<locked>> | 100% | 54,853 psi | 86% | 2605 fps | 100% |
| IMR 4895 | <<locked>> | 88% | 54,636 psi | 86% | 2579 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 57,493 psi | 90% | 2552 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 54,926 psi | 86% | 2533 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 54,708 psi | 86% | 2490 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 55,564 psi | 87% | 2539 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 54,607 psi | 86% | 2546 fps | 99.5% |
| Lovex S070 | <<locked>> | 98% | 55,448 psi | 87% | 2582 fps | 99.1% |
| Norma 201 | <<locked>> | 88% | 57,348 psi | 90% | 2549 fps | 100% |
| Norma 202 | <<locked>> | 86% | 54,418 psi | 85% | 2503 fps | 100% |
| Norma 203B | <<locked>> | 90% | 55,898 psi | 88% | 2589 fps | 100% |
| Norma 204ᴾ | <<locked>> | 100% | 57,711 psi | 90% | 2648 fps | 97.9% |
| Norma MRPᴾ | <<locked>> | 100% | 44,411 psi | 70% | 2549 fps | 97.1% |
| Norma URPᴾ | <<locked>> | 100% | 57,043 psi | 89% | 2648 fps | 100% |
| Ramshot Big Game | <<locked>> | 90% | 56,579 psi | 89% | 2615 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 55,608 psi | 87% | 2651 fps | 99.5% |
| Ramshot TAC | <<locked>> | 84% | 54,317 psi | 85% | 2536 fps | 99.6% |
| Ramshot Wild Boar | <<locked>> | 86% | 57,580 psi | 90% | 2595 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 54,781 psi | 86% | 2513 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,260 psi | 57% | 1568 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 56,971 psi | 89% | 2530 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 54,447 psi | 85% | 2549 fps | 99.2% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 57,435 psi | 90% | 2664 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 56,681 psi | 89% | 2690 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 57,725 psi | 90% | 2684 fps | 100% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 57,334 psi | 90% | 2717 fps | 100% |
| Rottweil R 901 | <<locked>> | 84% | 54,969 psi | 86% | 2484 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 57,740 psi | 90% | 2546 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 56,739 psi | 89% | 2585 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 46,949 psi | 74% | 2520 fps | 96.3% |
| Rottweil R 907 | <<locked>> | 96% | 56,855 psi | 89% | 2575 fps | 98.7% |
| Shooters World Long Rifle | <<locked>> | 96% | 54,607 psi | 86% | 2546 fps | 99.5% |
| Shooters World Match Rifle | <<locked>> | 86% | 54,926 psi | 86% | 2533 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 55,564 psi | 87% | 2539 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 55,448 psi | 87% | 2582 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 54,853 psi | 86% | 2598 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 56,420 psi | 88% | 2562 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 57,014 psi | 89% | 2579 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 55,390 psi | 87% | 2444 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 55,506 psi | 87% | 2444 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 54,766 psi | 86% | 2503 fps | 98.8% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 46,528 psi | 73% | 2513 fps | 96.2% |
| Somchem S321 | <<locked>> | 82% | 55,259 psi | 87% | 2539 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 54,679 psi | 86% | 2444 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 55,898 psi | 88% | 2549 fps | 100% |
| Somchem S355 | <<locked>> | 94% | 56,971 psi | 89% | 2582 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 51,300 psi | 80% | 2602 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 47,776 psi | 75% | 2503 fps | 97.3% |
| Vihtavuori N130 | <<locked>> | 82% | 55,158 psi | 86% | 2405 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 55,651 psi | 87% | 2428 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 57,624 psi | 90% | 2507 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 55,056 psi | 86% | 2487 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 54,911 psi | 86% | 2516 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 56,115 psi | 88% | 2598 fps | 100% |
| Vihtavuori N530 | <<locked>> | 84% | 54,636 psi | 86% | 2510 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 56,579 psi | 89% | 2530 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 54,839 psi | 86% | 2602 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 43,729 psi | 69% | 2507 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 56,246 psi | 88% | 2575 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 54,592 psi | 86% | 2556 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 57,551 psi | 90% | 2667 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 35,578 psi | 56% | 2457 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 88% | 56,956 psi | 89% | 2585 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% | 49,661 psi | 78% | 2375 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 42,424 psi | 66% | 2316 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 49,356 psi | 77% | 2454 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 41,481 psi | 65% | 2297 fps | 95.4% |
| Accurate 3100 | <<locked>> | 94% | 33,953 psi | 53% | 2267 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 40,147 psi | 63% | 2320 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 29,428 psi | 46% | 2172 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 45,818 psi | 72% | 2421 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 38,914 psi | 61% | 2290 fps | 98.7% |
| ADI AR 2209 | <<locked>> | 98% | 46,398 psi | 73% | 2493 fps | 95.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 47,848 psi | 75% | 2425 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 48,370 psi | 76% | 2398 fps | 100% |
| Alliant Power Pro 2000-MR | 67.6 gr | 80% | 41,597 psi | 65% | 2461 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,595 psi | 60% | 2313 fps | 99.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 41,466 psi | 65% | 2369 fps | 99.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 30,052 psi | 47% | 2185 fps | 95.6% |
| Alliant Reloder-17 | 66.6 gr | 80% | 33,330 psi | 52% | 2297 fps | 98.6% |
| Alliant Reloder-19 | <<locked>> | 98% | 45,585 psi | 71% | 2490 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 86% | 26,005 psi | 41% | 2110 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 90% | 31,517 psi | 49% | 2310 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 44,904 psi | 70% | 2431 fps | 99.4% |
| Bofors RP3 | <<locked>> | 80% | 38,392 psi | 60% | 2320 fps | 99.7% |
| Bofors RP7 | <<locked>> | 84% | 39,218 psi | 61% | 2293 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 49,487 psi | 78% | 2408 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 46,673 psi | 73% | 2448 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 51,663 psi | 81% | 2582 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 39,160 psi | 61% | 2323 fps | 98% |
| Hodgdon H414 | <<locked>> | 86% | 38,609 psi | 61% | 2365 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 86% | 42,308 psi | 66% | 2385 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 46,224 psi | 72% | 2431 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 27,528 psi | 43% | 2100 fps | 96.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 42,177 psi | 66% | 2411 fps | 99.9% |
| Hodgdon Superformance | 77.4 gr | 88% | 40,799 psi | 64% | 2431 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,600 psi | 42% | 1365 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,353 psi | 70% | 2388 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 45,948 psi | 72% | 2415 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,886 psi | 64% | 2320 fps | 99.2% |
| IMR 4166 Enduron | <<locked>> | 80% | 43,323 psi | 68% | 2339 fps | 96.8% |
| IMR 4350 | <<locked>> | 88% | 39,247 psi | 62% | 2320 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 82% | 38,392 psi | 60% | 2277 fps | 95.3% |
| IMR 4831 | <<locked>> | 80% | 28,761 psi | 45% | 2142 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 42,496 psi | 67% | 2398 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 80% | 47,848 psi | 75% | 2425 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 45,034 psi | 71% | 2398 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 45,556 psi | 71% | 2359 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 40,770 psi | 64% | 2320 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 33,576 psi | 53% | 2185 fps | 95.4% |
| Lovex S070 | <<locked>> | 84% | 35,984 psi | 56% | 2257 fps | 95% |
| Norma 201 | <<locked>> | 80% | 44,846 psi | 70% | 2375 fps | 100% |
| Norma 202 | <<locked>> | 80% | 45,107 psi | 71% | 2379 fps | 100% |
| Norma 203B | <<locked>> | 80% | 40,857 psi | 64% | 2359 fps | 99.5% |
| Norma 204 | <<locked>> | 92% | 44,295 psi | 69% | 2444 fps | 95.1% |
| Norma MRP | <<locked>> | 96% | 38,928 psi | 61% | 2444 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 29,936 psi | 47% | 2178 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 40,335 psi | 63% | 2372 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 86% | 35,505 psi | 56% | 2310 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 47,587 psi | 75% | 2438 fps | 98.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 47,239 psi | 74% | 2454 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 51,372 psi | 81% | 2467 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,963 psi | 42% | 1398 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 53,461 psi | 84% | 2487 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 39,436 psi | 62% | 2306 fps | 96.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 43,656 psi | 68% | 2464 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 35,476 psi | 56% | 2352 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 31,299 psi | 49% | 2238 fps | 95.8% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 33,533 psi | 53% | 2293 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 48,892 psi | 77% | 2402 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 42,728 psi | 67% | 2333 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 36,114 psi | 57% | 2270 fps | 99.2% |
| Rottweil R 905 | <<locked>> | 98% | 44,135 psi | 69% | 2470 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 84% | 39,218 psi | 61% | 2293 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 80% | 33,576 psi | 53% | 2185 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 45,034 psi | 71% | 2398 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 40,770 psi | 64% | 2320 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 84% | 35,984 psi | 56% | 2257 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 36,912 psi | 58% | 2313 fps | 98.8% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 46,064 psi | 72% | 2415 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,106 psi | 69% | 2395 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,108 psi | 72% | 2323 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,450 psi | 60% | 2211 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 37,217 psi | 58% | 2228 fps | 95.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 43,743 psi | 69% | 2467 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 51,692 psi | 81% | 2493 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 45,788 psi | 72% | 2326 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 45,730 psi | 72% | 2411 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 36,898 psi | 58% | 2274 fps | 99.2% |
| Somchem S365 | <<locked>> | 80% | 26,789 psi | 42% | 2136 fps | 97.7% |
| Somchem S385 | <<locked>> | 94% | 39,262 psi | 62% | 2359 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 51,967 psi | 81% | 2365 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 46,485 psi | 73% | 2313 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 42,250 psi | 66% | 2310 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 42,815 psi | 67% | 2323 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,099 psi | 55% | 2215 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 80% | 31,270 psi | 49% | 2178 fps | 95.9% |
| Vihtavuori N530 | <<locked>> | 80% | 48,008 psi | 75% | 2421 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 41,249 psi | 65% | 2320 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 30,748 psi | 48% | 2182 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 86% | 27,789 psi | 44% | 2175 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,995 psi | 49% | 2156 fps | 97.9% |
| Winchester 748 | <<locked>> | 80% | 47,630 psi | 75% | 2461 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 38,783 psi | 61% | 2369 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 90% | 25,947 psi | 41% | 2175 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 43,700 psi | 68% | 2402 fps | 99.9% |
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 103 powders for 9.5 x 66 SE v. Hofe loaded with the .375 | 300gr | Nosler Solid. ReloadSwiss RS 70 delivers the highest muzzle velocity at 2,717 fps; across all powders the maximum-charge window runs from 1,529 fps to 2,717 fps. Accurate 3100 gives the best case fill at 100 %, and 103 of the 103 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 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 Superformance, Alliant Reloder-17 rank at the top here: for 9.5 x 66 SE v. Hofe with the .375 | 300gr | Nosler Solid 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.