Load Specifications
Bullet Manufacturer:Hammer
Bullet Weight:305 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:1:17.0
Load data in caliber 9.5 x 66 SE v. Hofe with .375 | 305gr | Hammer Stone Hammer bullet and 111 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% | 57,725 psi | 90% | 2457 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 56,652 psi | 89% | 2487 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 54,592 psi | 86% | 2507 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 55,463 psi | 87% | 2507 fps | 98.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 43,497 psi | 68% | 2431 fps | 98.3% |
| Accurate 4064 | <<locked>> | 90% | 56,666 psi | 89% | 2536 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 56,695 psi | 89% | 2631 fps | 100% |
| ADI AR 2206H | <<locked>> | 86% | 56,855 psi | 89% | 2569 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 57,624 psi | 90% | 2566 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 51,314 psi | 80% | 2569 fps | 97.2% |
| ADI Benchmark 8208 | <<locked>> | 84% | 55,622 psi | 87% | 2516 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 56,927 psi | 89% | 2484 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 56,536 psi | 89% | 2684 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 50,923 psi | 80% | 2566 fps | 97.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 54,520 psi | 85% | 2546 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 55,056 psi | 86% | 2566 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 57,551 psi | 90% | 2677 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 55,361 psi | 87% | 2664 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 50,169 psi | 79% | 2556 fps | 97.2% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 43,918 psi | 69% | 2500 fps | 95.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,278 psi | 65% | 2457 fps | 99.9% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 36,521 psi | 57% | 2375 fps | 97% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 46,369 psi | 73% | 2615 fps | 99.7% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 56,710 psi | 89% | 2589 fps | 100% |
| Bofors RP3 | <<locked>> | 90% | 55,129 psi | 86% | 2559 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 43,918 psi | 69% | 2500 fps | 95.9% |
| Bofors RP7 | <<locked>> | 94% | 54,955 psi | 86% | 2539 fps | 98.7% |
| Hodgdon Benchmark | <<locked>> | 84% | 57,246 psi | 90% | 2497 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,201 psi | 87% | 2549 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 57,319 psi | 90% | 2644 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 56,014 psi | 88% | 2575 fps | 100% |
| Hodgdon H414 | <<locked>> | 96% | 55,680 psi | 87% | 2631 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 94% | 56,289 psi | 88% | 2595 fps | 98.4% |
| Hodgdon H4895 | <<locked>> | 86% | 57,493 psi | 90% | 2575 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 54,027 psi | 85% | 2562 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 57,087 psi | 89% | 2612 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 56,115 psi | 88% | 2671 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,882 psi | 56% | 1529 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 54,969 psi | 86% | 2530 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 57,609 psi | 90% | 2549 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 57,392 psi | 90% | 2552 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 57,101 psi | 89% | 2543 fps | 99.3% |
| IMR 4350 | <<locked>> | 98% | 55,230 psi | 87% | 2566 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 94% | 56,826 psi | 89% | 2566 fps | 99.2% |
| IMR 4831ᴾ | <<locked>> | 100% | 57,087 psi | 89% | 2621 fps | 100% |
| IMR 4895 | <<locked>> | 88% | 56,478 psi | 89% | 2592 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 55,622 psi | 87% | 2516 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 56,811 psi | 89% | 2543 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 56,159 psi | 88% | 2500 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 57,130 psi | 90% | 2546 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 56,405 psi | 88% | 2562 fps | 99.8% |
| Lovex S070 | <<locked>> | 98% | 57,305 psi | 90% | 2595 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 36,172 psi | 57% | 2303 fps | 96.5% |
| Norma 201 | <<locked>> | 86% | 55,651 psi | 87% | 2516 fps | 100% |
| Norma 202 | <<locked>> | 86% | 56,043 psi | 88% | 2510 fps | 100% |
| Norma 203B | <<locked>> | 90% | 57,711 psi | 90% | 2598 fps | 100% |
| Norma 204 | <<locked>> | 98% | 56,057 psi | 88% | 2618 fps | 98% |
| Norma MRPᴾ | <<locked>> | 100% | 46,166 psi | 72% | 2572 fps | 97.9% |
| Norma URP | <<locked>> | 98% | 55,419 psi | 87% | 2615 fps | 100% |
| Ramshot Big Game | <<locked>> | 88% | 54,679 psi | 86% | 2579 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 57,725 psi | 90% | 2667 fps | 99.8% |
| Ramshot TAC | <<locked>> | 84% | 55,898 psi | 88% | 2549 fps | 99.8% |
| Ramshot Wild Boar | <<locked>> | 84% | 55,579 psi | 87% | 2559 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,420 psi | 88% | 2523 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,376 psi | 57% | 1565 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 56,086 psi | 88% | 2559 fps | 99.5% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 55,579 psi | 87% | 2628 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 55,071 psi | 86% | 2657 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 56,304 psi | 88% | 2654 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 55,419 psi | 87% | 2680 fps | 100% |
| Rottweil R 901 | <<locked>> | 84% | 56,666 psi | 89% | 2493 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 56,014 psi | 88% | 2513 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 55,013 psi | 86% | 2552 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 52,866 psi | 83% | 2539 fps | 96.4% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 48,936 psi | 77% | 2543 fps | 97.2% |
| Rottweil R 907 | <<locked>> | 94% | 54,955 psi | 86% | 2539 fps | 98.7% |
| Shooters World Long Rifle | <<locked>> | 96% | 56,405 psi | 88% | 2562 fps | 99.8% |
| Shooters World Match Rifle | <<locked>> | 86% | 56,811 psi | 89% | 2543 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 57,130 psi | 90% | 2546 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 57,305 psi | 90% | 2595 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 56,623 psi | 89% | 2608 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 54,418 psi | 85% | 2526 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,056 psi | 86% | 2543 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 56,942 psi | 89% | 2451 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 57,261 psi | 90% | 2451 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 56,536 psi | 89% | 2520 fps | 99.2% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 48,472 psi | 76% | 2536 fps | 97% |
| Somchem S321 | <<locked>> | 82% | 56,971 psi | 89% | 2549 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 56,391 psi | 88% | 2451 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 53,954 psi | 85% | 2516 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 55,259 psi | 87% | 2549 fps | 100% |
| Somchem S361ᴾ | <<locked>> | 100% | 54,824 psi | 86% | 2536 fps | 95.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 53,664 psi | 84% | 2618 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 49,676 psi | 78% | 2523 fps | 98% |
| Vihtavuori N130 | <<locked>> | 82% | 56,579 psi | 89% | 2408 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 57,246 psi | 90% | 2431 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 55,956 psi | 88% | 2474 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 56,594 psi | 89% | 2490 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 56,637 psi | 89% | 2526 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 54,476 psi | 85% | 2566 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 42,844 psi | 67% | 2402 fps | 96% |
| Vihtavuori N530 | <<locked>> | 84% | 56,202 psi | 88% | 2520 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 54,636 psi | 86% | 2493 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 56,913 psi | 89% | 2618 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 45,687 psi | 72% | 2523 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 54,404 psi | 85% | 2546 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 56,304 psi | 88% | 2562 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 55,883 psi | 88% | 2635 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,985 psi | 58% | 2487 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 86% | 54,969 psi | 86% | 2549 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 46,499 psi | 73% | 2461 fps | 96.2% |
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% | 51,140 psi | 80% | 2379 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,888 psi | 69% | 2326 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 50,995 psi | 80% | 2461 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 42,743 psi | 67% | 2313 fps | 96.2% |
| Accurate 3100 | <<locked>> | 92% | 33,127 psi | 52% | 2241 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 41,539 psi | 65% | 2329 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 30,603 psi | 48% | 2192 fps | 96.4% |
| ADI AR 2206H | <<locked>> | 80% | 47,108 psi | 74% | 2431 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 40,074 psi | 63% | 2303 fps | 99.1% |
| ADI AR 2209 | <<locked>> | 96% | 45,020 psi | 71% | 2467 fps | 95.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,182 psi | 77% | 2431 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 50,038 psi | 78% | 2405 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 42,960 psi | 67% | 2477 fps | 99.6% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 42,047 psi | 66% | 2415 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,001 psi | 63% | 2326 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,772 psi | 67% | 2382 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,009 psi | 49% | 2205 fps | 96.5% |
| Alliant Reloder-17 | 67.9 gr | 80% | 34,505 psi | 54% | 2316 fps | 99.2% |
| Alliant Reloder-19 | <<locked>> | 94% | 41,553 psi | 65% | 2411 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 98% | 41,089 psi | 64% | 2448 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 84% | 25,440 psi | 40% | 2083 fps | 95.5% |
| Alliant Reloder-25 | <<locked>> | 96% | 32,256 psi | 51% | 2274 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 88% | 30,589 psi | 48% | 2280 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,340 psi | 73% | 2441 fps | 99.7% |
| Bofors RP3 | <<locked>> | 80% | 39,711 psi | 62% | 2333 fps | 99.9% |
| Bofors RP5 | <<locked>> | 98% | 41,089 psi | 64% | 2448 fps | 95% |
| Bofors RP7 | <<locked>> | 82% | 38,014 psi | 60% | 2260 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,734 psi | 80% | 2411 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,240 psi | 76% | 2457 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 53,592 psi | 84% | 2595 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,393 psi | 63% | 2336 fps | 98.5% |
| Hodgdon H414 | <<locked>> | 84% | 37,492 psi | 59% | 2333 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 84% | 40,988 psi | 64% | 2352 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 47,558 psi | 75% | 2441 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,529 psi | 45% | 2116 fps | 97.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,700 psi | 68% | 2425 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 39,378 psi | 62% | 2395 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,701 psi | 42% | 1362 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,585 psi | 71% | 2398 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 47,529 psi | 74% | 2425 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,119 psi | 66% | 2333 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,411 psi | 70% | 2352 fps | 97.4% |
| IMR 4350 | <<locked>> | 86% | 38,189 psi | 60% | 2290 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 37,086 psi | 58% | 2244 fps | 95.3% |
| IMR 4831 | <<locked>> | 80% | 29,849 psi | 47% | 2156 fps | 96.1% |
| IMR 4895 | <<locked>> | 80% | 43,816 psi | 69% | 2408 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 80% | 49,182 psi | 77% | 2431 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 46,601 psi | 73% | 2411 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,992 psi | 74% | 2372 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 42,206 psi | 66% | 2333 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 34,664 psi | 54% | 2201 fps | 96.2% |
| Lovex S070 | <<locked>> | 82% | 34,969 psi | 55% | 2228 fps | 95% |
| Lovex S071 | <<locked>> | 98% | 34,011 psi | 53% | 2257 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 46,151 psi | 72% | 2385 fps | 100% |
| Norma 202 | <<locked>> | 80% | 46,644 psi | 73% | 2388 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,119 psi | 66% | 2372 fps | 99.7% |
| Norma 204 | <<locked>> | 90% | 42,931 psi | 67% | 2415 fps | 95.2% |
| Norma MRP | <<locked>> | 94% | 37,753 psi | 59% | 2411 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 31,024 psi | 49% | 2195 fps | 96.3% |
| Ramshot Big Game | <<locked>> | 80% | 41,727 psi | 65% | 2385 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 84% | 34,461 psi | 54% | 2277 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 49,052 psi | 77% | 2451 fps | 99.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,675 psi | 76% | 2464 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 80% | 52,953 psi | 83% | 2477 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,064 psi | 42% | 1394 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,683 psi | 64% | 2320 fps | 97.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,339 psi | 71% | 2477 fps | 99.8% |
| ReloadSwiss RS 60 | 67.9 gr | 80% | 36,753 psi | 58% | 2369 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 30,356 psi | 48% | 2205 fps | 95.8% |
| ReloadSwiss RS 70 | 70.7 gr | 82% | 32,518 psi | 51% | 2260 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 50,285 psi | 79% | 2408 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,019 psi | 69% | 2343 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 37,376 psi | 59% | 2283 fps | 99.6% |
| Rottweil R 904 | <<locked>> | 96% | 46,760 psi | 73% | 2448 fps | 95% |
| Rottweil R 905 | <<locked>> | 96% | 42,975 psi | 67% | 2444 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 82% | 38,014 psi | 60% | 2260 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 34,664 psi | 54% | 2201 fps | 96.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,601 psi | 73% | 2411 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,206 psi | 66% | 2333 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 34,969 psi | 55% | 2228 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,232 psi | 60% | 2329 fps | 99.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,456 psi | 74% | 2428 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,542 psi | 71% | 2408 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,427 psi | 74% | 2329 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,624 psi | 62% | 2218 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 36,085 psi | 57% | 2198 fps | 95.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 42,583 psi | 67% | 2438 fps | 95.6% |
| Somchem S321 | <<locked>> | 80% | 53,229 psi | 83% | 2503 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 47,036 psi | 74% | 2333 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,152 psi | 74% | 2421 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 38,101 psi | 60% | 2287 fps | 99.5% |
| Somchem S361 | <<locked>> | 98% | 51,169 psi | 80% | 2487 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 27,862 psi | 44% | 2156 fps | 98.5% |
| Somchem S385 | <<locked>> | 92% | 38,232 psi | 60% | 2329 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 53,345 psi | 84% | 2372 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 47,805 psi | 75% | 2316 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,700 psi | 68% | 2316 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,092 psi | 69% | 2329 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,274 psi | 57% | 2228 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 32,343 psi | 51% | 2195 fps | 96.7% |
| Vihtavuori N165 | <<locked>> | 98% | 40,190 psi | 63% | 2352 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 49,342 psi | 77% | 2428 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,438 psi | 67% | 2326 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 31,821 psi | 50% | 2195 fps | 96.3% |
| Vihtavuori N555 | <<locked>> | 84% | 27,166 psi | 43% | 2149 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,966 psi | 50% | 2172 fps | 98.6% |
| Winchester 748 | <<locked>> | 80% | 49,240 psi | 77% | 2470 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 37,652 psi | 59% | 2336 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 88% | 25,324 psi | 40% | 2152 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,121 psi | 71% | 2411 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 43,540 psi | 68% | 2411 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 111 powders for 9.5 x 66 SE v. Hofe loaded with the .375 | 305gr | Hammer Stone Hammer. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,684 fps; across all powders the maximum-charge window runs from 1,529 fps to 2,684 fps. Accurate 3100 gives the best case fill at 100 %, and 111 of the 111 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 305.0 gr projectile in 0.375" calls for a 1:17.0 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 | 305gr | Hammer Stone Hammer 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.