Load Specifications
Load data in caliber 9.3 x 66 Sako with .366 | 220gr | Fox Classic Hunter bullet and 80 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 1200-R, Winchester 748 and Winchester StaBALL Match.
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.
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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 84% | 52,765 psi | 88% | 2543 fps | 100% |
| Accurate 2015 | <<locked>> | 98% | 53,954 psi | 90% | 2638 fps | 100% |
| Accurate 2200 | <<locked>> | 88% | 52,837 psi | 88% | 2671 fps | 96.3% |
| Accurate 2230 | <<locked>> | 88% | 52,982 psi | 88% | 2677 fps | 96.8% |
| Accurate 2460 | <<locked>> | 94% | 52,736 psi | 88% | 2654 fps | 99.7% |
| Accurate 2495ᴾ | <<locked>> | 100% | 45,063 psi | 75% | 2582 fps | 100% |
| Accurate 2520 | <<locked>> | 98% | 51,068 psi | 85% | 2684 fps | 99.4% |
| Accurate 2520 | <<locked>> | 98% | 51,068 psi | 85% | 2684 fps | 99.4% |
| Accurate 4064ᴾ | <<locked>> | 100% | 41,872 psi | 70% | 2556 fps | 99% |
| Accurate LT-30 | <<locked>> | 90% | 53,838 psi | 89% | 2566 fps | 100% |
| Accurate LT-32 | <<locked>> | 90% | 54,331 psi | 90% | 2582 fps | 99.6% |
| ADI AR 2206Hᴾ | <<locked>> | 100% | 53,258 psi | 88% | 2697 fps | 97.4% |
| ADI AR 2207 | <<locked>> | 88% | 53,925 psi | 90% | 2592 fps | 100% |
| ADI AR 2219 | <<locked>> | 90% | 52,214 psi | 87% | 2667 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 98% | 53,127 psi | 88% | 2664 fps | 98.4% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 54,099 psi | 90% | 2713 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 94% | 53,635 psi | 89% | 2759 fps | 98.1% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 42,525 psi | 71% | 2552 fps | 96.2% |
| Alliant Reloder-10x | <<locked>> | 94% | 54,418 psi | 90% | 2657 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 86% | 51,982 psi | 86% | 2562 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 52,185 psi | 87% | 2559 fps | 100% |
| Baschieri & Pellagri 107ᴾ | <<locked>> | 100% | 53,098 psi | 88% | 2703 fps | 96% |
| Bofors RP3ᴾ | <<locked>> | 100% | 41,800 psi | 69% | 2552 fps | 96.1% |
| Hodgdon Benchmark | <<locked>> | 96% | 53,040 psi | 88% | 2618 fps | 98.8% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 54,360 psi | 90% | 2740 fps | 99.1% |
| Hodgdon CFE223 | <<locked>> | 96% | 53,069 psi | 88% | 2766 fps | 96.7% |
| Hodgdon H322 | <<locked>> | 96% | 52,866 psi | 88% | 2674 fps | 100% |
| Hodgdon H335 | <<locked>> | 90% | 51,474 psi | 86% | 2664 fps | 99.7% |
| Hodgdon H4198 | <<locked>> | 88% | 52,257 psi | 87% | 2562 fps | 99.9% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 53,548 psi | 89% | 2710 fps | 98% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 44,802 psi | 74% | 2615 fps | 96.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,663 psi | 54% | 1565 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 47,659 psi | 79% | 2595 fps | 96.7% |
| IMR 3031ᴾ | <<locked>> | 100% | 45,803 psi | 76% | 2631 fps | 100% |
| IMR 4198 | <<locked>> | 92% | 52,794 psi | 88% | 2585 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 52,678 psi | 88% | 2513 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 47,979 psi | 80% | 2654 fps | 96.5% |
| IMR 8208 XBR | <<locked>> | 98% | 53,127 psi | 88% | 2664 fps | 98.4% |
| Lovex D073.4 | <<locked>> | 88% | 53,476 psi | 89% | 2671 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 94% | 52,982 psi | 88% | 2661 fps | 99.1% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 50,473 psi | 84% | 2674 fps | 99.3% |
| Lovex S053 | <<locked>> | 84% | 54,215 psi | 90% | 2500 fps | 100% |
| Lovex S060 | <<locked>> | 98% | 51,561 psi | 86% | 2592 fps | 97% |
| Lovex S062ᴾ | <<locked>> | 100% | 45,890 psi | 76% | 2572 fps | 97.3% |
| Norma 200 | <<locked>> | 88% | 51,184 psi | 85% | 2592 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 51,634 psi | 86% | 2648 fps | 98.3% |
| Norma 202ᴾ | <<locked>> | 100% | 51,706 psi | 86% | 2664 fps | 99.7% |
| Norma 203Bᴾ | <<locked>> | 100% | 45,905 psi | 76% | 2608 fps | 95.9% |
| Ramshot Wild Boar | <<locked>> | 98% | 52,330 psi | 87% | 2687 fps | 97.1% |
| Ramshot X-Terminator | <<locked>> | 94% | 52,112 psi | 87% | 2625 fps | 96.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,648 psi | 54% | 1604 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 52,518 psi | 87% | 2549 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 53,345 psi | 89% | 2667 fps | 99.4% |
| ReloadSwiss RS 52ᴾ | <<locked>> | 100% | 49,313 psi | 82% | 2720 fps | 95.9% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 40,988 psi | 68% | 2575 fps | 96.9% |
| Rottweil R 901 | <<locked>> | 98% | 52,388 psi | 87% | 2644 fps | 99.7% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 48,689 psi | 81% | 2592 fps | 97.8% |
| Shooters World AR Plus | <<locked>> | 88% | 53,476 psi | 89% | 2671 fps | 99.4% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 50,473 psi | 84% | 2674 fps | 99.3% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 45,890 psi | 76% | 2572 fps | 97.3% |
| Shooters World Tactical Rifle | <<locked>> | 92% | 54,346 psi | 90% | 2638 fps | 98.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 51,996 psi | 86% | 2323 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 52,663 psi | 87% | 2674 fps | 99.7% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 52,402 psi | 87% | 2628 fps | 100% |
| SNPE Vectan SP 9ᴾ | <<locked>> | 100% | 51,692 psi | 86% | 2667 fps | 97% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 52,069 psi | 87% | 2575 fps | 99.6% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 44,527 psi | 74% | 2480 fps | 99.5% |
| Somchem S321 | <<locked>> | 96% | 54,433 psi | 90% | 2707 fps | 98.8% |
| Somchem S335ᴾ | <<locked>> | 100% | 53,403 psi | 89% | 2618 fps | 100% |
| Somchem S341ᴾ | <<locked>> | 100% | 54,302 psi | 90% | 2687 fps | 97.3% |
| Vihtavuori N120 | <<locked>> | 88% | 53,998 psi | 90% | 2546 fps | 100% |
| Vihtavuori N130 | <<locked>> | 94% | 51,996 psi | 86% | 2569 fps | 100% |
| Vihtavuori N133 | <<locked>> | 98% | 51,372 psi | 85% | 2572 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 46,514 psi | 77% | 2585 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 48,936 psi | 81% | 2598 fps | 99.7% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 38,899 psi | 65% | 2444 fps | 96.1% |
| Vihtavuori N530 | <<locked>> | 98% | 53,882 psi | 90% | 2667 fps | 98.6% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 47,181 psi | 78% | 2592 fps | 99.2% |
| Winchester 748 | <<locked>> | 96% | 52,982 psi | 88% | 2723 fps | 99.1% |
| Winchester StaBALL Match | <<locked>> | 94% | 53,867 psi | 89% | 2717 fps | 98% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 46,325 psi | 77% | 2454 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 30,400 psi | 51% | 2234 fps | 98.2% |
| Accurate 2200 | <<locked>> | 86% | 49,385 psi | 82% | 2618 fps | 95.6% |
| Accurate 2230 | <<locked>> | 84% | 45,963 psi | 76% | 2569 fps | 95.2% |
| Accurate 2460 | <<locked>> | 80% | 32,518 psi | 54% | 2303 fps | 95.9% |
| Accurate 2495 | <<locked>> | 80% | 22,524 psi | 37% | 2100 fps | 95.4% |
| Accurate 2520 | <<locked>> | 86% | 33,286 psi | 55% | 2372 fps | 95.7% |
| Accurate 2520 | <<locked>> | 86% | 33,286 psi | 55% | 2372 fps | 95.7% |
| Accurate 4064 | <<locked>> | 88% | 28,108 psi | 47% | 2264 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 80% | 39,494 psi | 66% | 2343 fps | 99% |
| Accurate LT-32 | <<locked>> | 80% | 39,871 psi | 66% | 2349 fps | 97.5% |
| ADI AR 2206H | <<locked>> | 94% | 43,830 psi | 73% | 2546 fps | 95.3% |
| ADI AR 2207 | <<locked>> | 80% | 42,032 psi | 70% | 2428 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 37,130 psi | 62% | 2415 fps | 98.5% |
| ADI Benchmark 8208 | <<locked>> | 88% | 38,624 psi | 64% | 2421 fps | 95.3% |
| Alliant AR-Comp | <<locked>> | 80% | 27,891 psi | 46% | 2251 fps | 99.4% |
| Alliant Power Pro 1200-R | 50.4 gr | 86% | 41,307 psi | 69% | 2552 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 40,001 psi | 66% | 2503 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 35,215 psi | 59% | 2349 fps | 99.7% |
| Alliant Reloder-7 | <<locked>> | 80% | 43,120 psi | 72% | 2434 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 37,782 psi | 63% | 2333 fps | 98.9% |
| Baschieri & Pellagri 107 | <<locked>> | 98% | 49,792 psi | 83% | 2654 fps | 95.3% |
| Bofors RP3 | <<locked>> | 98% | 38,957 psi | 65% | 2500 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 84% | 36,593 psi | 61% | 2336 fps | 95.3% |
| Hodgdon BL-C2 | <<locked>> | 88% | 35,766 psi | 59% | 2425 fps | 95.2% |
| Hodgdon CFE223 | <<locked>> | 92% | 46,122 psi | 77% | 2651 fps | 95.1% |
| Hodgdon H322 | <<locked>> | 80% | 31,488 psi | 52% | 2293 fps | 96.9% |
| Hodgdon H335 | <<locked>> | 80% | 36,187 psi | 60% | 2402 fps | 97.3% |
| Hodgdon H4198 | <<locked>> | 80% | 41,017 psi | 68% | 2382 fps | 98.8% |
| Hodgdon H4895 | <<locked>> | 92% | 41,452 psi | 69% | 2510 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 96% | 39,436 psi | 66% | 2510 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,105 psi | 40% | 1398 fps | 100% |
| Hodgdon VARGET | <<locked>> | 96% | 42,076 psi | 70% | 2500 fps | 95.3% |
| IMR 3031 | <<locked>> | 82% | 26,121 psi | 43% | 2205 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 36,956 psi | 61% | 2339 fps | 100% |
| IMR 4227 | <<locked>> | 80% | 49,516 psi | 82% | 2474 fps | 100% |
| IMR 4895 | <<locked>> | 98% | 44,904 psi | 75% | 2602 fps | 95.8% |
| IMR 8208 XBR | <<locked>> | 88% | 38,624 psi | 64% | 2421 fps | 95.3% |
| Lovex D073.4 | <<locked>> | 80% | 40,147 psi | 67% | 2457 fps | 97.5% |
| Lovex D073.5 | <<locked>> | 82% | 34,592 psi | 57% | 2349 fps | 95.2% |
| Lovex D073.6 | <<locked>> | 88% | 33,286 psi | 55% | 2372 fps | 95.7% |
| Lovex S053 | <<locked>> | 80% | 48,327 psi | 80% | 2425 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 43,076 psi | 72% | 2454 fps | 95% |
| Lovex S062 | <<locked>> | 94% | 37,985 psi | 63% | 2431 fps | 95.3% |
| Norma 200 | <<locked>> | 80% | 39,610 psi | 66% | 2415 fps | 100% |
| Norma 201 | <<locked>> | 90% | 37,681 psi | 63% | 2408 fps | 95.2% |
| Norma 202 | <<locked>> | 84% | 30,893 psi | 51% | 2283 fps | 95.6% |
| Norma 203B | <<locked>> | 98% | 42,931 psi | 71% | 2556 fps | 95.1% |
| Ramshot Wild Boar | <<locked>> | 94% | 45,745 psi | 76% | 2585 fps | 95.7% |
| Ramshot X-Terminator | <<locked>> | 90% | 45,716 psi | 76% | 2523 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,018 psi | 40% | 1430 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 49,443 psi | 82% | 2507 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 33,779 psi | 56% | 2323 fps | 95.4% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 46,079 psi | 77% | 2664 fps | 95.1% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 38,435 psi | 64% | 2523 fps | 96% |
| Rottweil R 901 | <<locked>> | 80% | 30,400 psi | 51% | 2234 fps | 95.1% |
| Rottweil R 902 | <<locked>> | 92% | 37,739 psi | 63% | 2402 fps | 95.1% |
| Shooters World AR Plus | <<locked>> | 80% | 40,147 psi | 67% | 2457 fps | 97.5% |
| Shooters World Match Rifle | <<locked>> | 88% | 33,286 psi | 55% | 2372 fps | 95.7% |
| Shooters World Precision | <<locked>> | 94% | 37,985 psi | 63% | 2431 fps | 95.3% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 41,147 psi | 68% | 2431 fps | 95.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 44,280 psi | 74% | 2224 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 37,666 psi | 63% | 2421 fps | 97.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 35,897 psi | 60% | 2356 fps | 98.8% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 45,397 psi | 75% | 2569 fps | 95.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 31,401 psi | 52% | 2211 fps | 95.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 26,919 psi | 45% | 2123 fps | 95% |
| Somchem S321 | <<locked>> | 86% | 38,609 psi | 64% | 2448 fps | 95.7% |
| Somchem S335 | <<locked>> | 80% | 28,660 psi | 48% | 2169 fps | 95.6% |
| Somchem S341 | <<locked>> | 94% | 44,092 psi | 73% | 2530 fps | 95.1% |
| Vihtavuori N120 | <<locked>> | 80% | 42,177 psi | 70% | 2385 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 33,736 psi | 56% | 2267 fps | 99.4% |
| Vihtavuori N133 | <<locked>> | 80% | 29,298 psi | 49% | 2182 fps | 97.7% |
| Vihtavuori N135 | <<locked>> | 80% | 24,294 psi | 40% | 2126 fps | 96% |
| Vihtavuori N140 | <<locked>> | 84% | 29,341 psi | 49% | 2228 fps | 95.3% |
| Vihtavuori N150 | <<locked>> | 98% | 36,550 psi | 61% | 2398 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 88% | 38,638 psi | 64% | 2418 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 88% | 31,995 psi | 53% | 2306 fps | 95.8% |
| Winchester 748 | 52.9 gr | 84% | 34,925 psi | 58% | 2402 fps | 95.1% |
| Winchester StaBALL Match | 58.8 gr | 88% | 43,236 psi | 72% | 2549 fps | 95.8% |
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 80 powders for 9.3 x 66 Sako loaded with the .366 | 220gr | Fox Classic Hunter. Hodgdon CFE223 delivers the highest muzzle velocity at 2,766 fps; across all powders the maximum-charge window runs from 1,565 fps to 2,766 fps. Accurate 2495 gives the best case fill at 100 %, and 80 of the 80 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 220.0 gr projectile in 0.366" calls for a 1:15.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, ADI AR 2206H 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 1200-R, Winchester 748, Winchester StaBALL Match rank at the top here: for 9.3 x 66 Sako with the .366 | 220gr | Fox Classic Hunter 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.