Load Specifications
Load data in caliber 9.3 x 66 Sako with .366 | 220gr | Atomic 29 HP bullet and 85 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, Ramshot Wild Boar and Hodgdon BL-C2.
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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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 82% | 51,909 psi | 86% | 2559 fps | 100% |
| Accurate 2015 | <<locked>> | 96% | 53,853 psi | 89% | 2661 fps | 100% |
| Accurate 2200 | <<locked>> | 86% | 52,243 psi | 87% | 2694 fps | 96.7% |
| Accurate 2230 | <<locked>> | 86% | 52,489 psi | 87% | 2703 fps | 97.2% |
| Accurate 2460 | <<locked>> | 92% | 52,344 psi | 87% | 2677 fps | 99.8% |
| Accurate 2495ᴾ | <<locked>> | 100% | 48,631 psi | 81% | 2654 fps | 100% |
| Accurate 2520 | <<locked>> | 96% | 51,111 psi | 85% | 2710 fps | 99.6% |
| Accurate 2520 | <<locked>> | 96% | 51,111 psi | 85% | 2710 fps | 99.6% |
| Accurate 4064ᴾ | <<locked>> | 100% | 45,150 psi | 75% | 2631 fps | 99.6% |
| Accurate LT-30 | <<locked>> | 88% | 52,953 psi | 88% | 2582 fps | 100% |
| Accurate LT-32 | <<locked>> | 88% | 53,447 psi | 89% | 2598 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 98% | 52,953 psi | 88% | 2723 fps | 97.7% |
| ADI AR 2207 | <<locked>> | 86% | 53,403 psi | 89% | 2608 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 47,616 psi | 79% | 2612 fps | 95.8% |
| ADI AR 2219 | <<locked>> | 88% | 51,880 psi | 86% | 2687 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 96% | 52,895 psi | 88% | 2690 fps | 98.7% |
| Alliant AR-Comp | <<locked>> | 98% | 54,041 psi | 90% | 2733 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 92% | 53,664 psi | 89% | 2789 fps | 98.5% |
| Alliant Power Pro 2000-MRᴾ | <<locked>> | 100% | 52,939 psi | 88% | 2805 fps | 96.5% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 45,411 psi | 75% | 2625 fps | 97.3% |
| Alliant Reloder-10x | <<locked>> | 92% | 54,375 psi | 90% | 2680 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 49,792 psi | 83% | 2694 fps | 96.6% |
| Alliant Reloder-7 | <<locked>> | 84% | 51,358 psi | 85% | 2579 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 51,677 psi | 86% | 2579 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 98% | 52,750 psi | 88% | 2730 fps | 96.5% |
| Bofors RP3ᴾ | <<locked>> | 100% | 44,947 psi | 75% | 2631 fps | 97.3% |
| Hodgdon Benchmark | <<locked>> | 94% | 52,330 psi | 87% | 2638 fps | 99% |
| Hodgdon BL-C2 | <<locked>> | 98% | 54,302 psi | 90% | 2766 fps | 99.3% |
| Hodgdon CFE223 | <<locked>> | 94% | 52,779 psi | 88% | 2795 fps | 97.2% |
| Hodgdon H322 | <<locked>> | 94% | 52,417 psi | 87% | 2697 fps | 100% |
| Hodgdon H335 | <<locked>> | 88% | 51,126 psi | 85% | 2684 fps | 99.8% |
| Hodgdon H4198 | <<locked>> | 86% | 51,445 psi | 85% | 2579 fps | 99.9% |
| Hodgdon H4895 | <<locked>> | 98% | 53,301 psi | 89% | 2736 fps | 98.3% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 47,805 psi | 79% | 2697 fps | 97.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,170 psi | 55% | 1598 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 50,343 psi | 84% | 2667 fps | 97.7% |
| IMR 3031ᴾ | <<locked>> | 100% | 49,110 psi | 82% | 2703 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 46,064 psi | 77% | 2582 fps | 95.8% |
| IMR 4198 | <<locked>> | 90% | 52,431 psi | 87% | 2605 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 50,937 psi | 85% | 2730 fps | 97.6% |
| IMR 8208 XBR | <<locked>> | 96% | 52,895 psi | 88% | 2690 fps | 98.7% |
| Lovex D073.4 | <<locked>> | 86% | 53,040 psi | 88% | 2694 fps | 99.6% |
| Lovex D073.5 | <<locked>> | 92% | 52,417 psi | 87% | 2680 fps | 99.3% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 54,288 psi | 90% | 2753 fps | 99.8% |
| Lovex S053 | <<locked>> | 82% | 53,359 psi | 89% | 2513 fps | 100% |
| Lovex S060 | <<locked>> | 96% | 51,097 psi | 85% | 2618 fps | 97.4% |
| Lovex S062ᴾ | <<locked>> | 100% | 48,849 psi | 81% | 2648 fps | 98.3% |
| Norma 200 | <<locked>> | 88% | 54,114 psi | 90% | 2654 fps | 100% |
| Norma 201 | <<locked>> | 98% | 51,503 psi | 86% | 2674 fps | 98.6% |
| Norma 202 | <<locked>> | 98% | 51,619 psi | 86% | 2690 fps | 99.9% |
| Norma 203Bᴾ | <<locked>> | 100% | 48,791 psi | 81% | 2684 fps | 97.1% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 49,705 psi | 83% | 2707 fps | 96.8% |
| Ramshot Wild Boar | <<locked>> | 96% | 52,011 psi | 86% | 2713 fps | 97.5% |
| Ramshot X-Terminator | <<locked>> | 92% | 51,372 psi | 85% | 2644 fps | 97.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,156 psi | 55% | 1634 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 52,924 psi | 88% | 2690 fps | 99.5% |
| ReloadSwiss RS 52ᴾ | <<locked>> | 100% | 52,750 psi | 88% | 2805 fps | 97.2% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 43,656 psi | 73% | 2667 fps | 98.3% |
| Rottweil R 901 | <<locked>> | 96% | 52,373 psi | 87% | 2671 fps | 99.8% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 51,517 psi | 86% | 2664 fps | 98.6% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 41,742 psi | 69% | 2566 fps | 96.2% |
| Shooters World AR Plus | <<locked>> | 86% | 53,040 psi | 88% | 2694 fps | 99.6% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 54,288 psi | 90% | 2753 fps | 99.8% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 48,849 psi | 81% | 2648 fps | 98.3% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 53,650 psi | 89% | 2661 fps | 98.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 54,027 psi | 90% | 2369 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 52,156 psi | 87% | 2690 fps | 99.8% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 52,170 psi | 87% | 2648 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 98% | 51,474 psi | 86% | 2694 fps | 97.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 51,459 psi | 85% | 2598 fps | 99.8% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 47,239 psi | 78% | 2546 fps | 99.9% |
| Somchem S321 | <<locked>> | 94% | 54,128 psi | 90% | 2733 fps | 99.1% |
| Somchem S335 | <<locked>> | 98% | 53,171 psi | 88% | 2641 fps | 100% |
| Somchem S341 | <<locked>> | 98% | 53,998 psi | 90% | 2713 fps | 97.7% |
| Somchem S355ᴾ | <<locked>> | 100% | 43,221 psi | 72% | 2575 fps | 96.3% |
| Vihtavuori N120 | <<locked>> | 86% | 53,432 psi | 89% | 2559 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 51,517 psi | 86% | 2589 fps | 100% |
| Vihtavuori N133 | <<locked>> | 98% | 54,244 psi | 90% | 2635 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 49,734 psi | 83% | 2654 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 52,257 psi | 87% | 2671 fps | 99.9% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 41,698 psi | 69% | 2520 fps | 97.3% |
| Vihtavuori N530 | <<locked>> | 96% | 53,505 psi | 89% | 2694 fps | 98.8% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 50,430 psi | 84% | 2664 fps | 99.7% |
| Winchester 748 | <<locked>> | 94% | 52,808 psi | 88% | 2749 fps | 99.4% |
| Winchester StaBALL Match | <<locked>> | 92% | 53,330 psi | 89% | 2740 fps | 98.3% |
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% | 48,530 psi | 81% | 2513 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 32,329 psi | 54% | 2300 fps | 98.9% |
| Accurate 2200 | <<locked>> | 82% | 45,759 psi | 76% | 2585 fps | 95.2% |
| Accurate 2230 | <<locked>> | 82% | 45,339 psi | 75% | 2589 fps | 95.6% |
| Accurate 2460 | <<locked>> | 80% | 34,592 psi | 57% | 2372 fps | 97.1% |
| Accurate 2495 | <<locked>> | 80% | 24,468 psi | 41% | 2172 fps | 96.8% |
| Accurate 2520 | <<locked>> | 82% | 31,125 psi | 52% | 2339 fps | 95.4% |
| Accurate 2520 | <<locked>> | 82% | 31,125 psi | 52% | 2339 fps | 95.4% |
| Accurate 4064 | <<locked>> | 86% | 28,384 psi | 47% | 2287 fps | 95.7% |
| Accurate LT-30 | <<locked>> | 80% | 41,350 psi | 69% | 2402 fps | 99.5% |
| Accurate LT-32 | <<locked>> | 80% | 41,727 psi | 69% | 2411 fps | 98.3% |
| ADI AR 2206H | <<locked>> | 90% | 40,959 psi | 68% | 2516 fps | 95% |
| ADI AR 2207 | <<locked>> | 80% | 44,251 psi | 74% | 2480 fps | 100% |
| ADI AR 2208 | <<locked>> | 98% | 44,802 psi | 74% | 2566 fps | 95.1% |
| ADI AR 2219 | <<locked>> | 80% | 39,407 psi | 65% | 2484 fps | 99.2% |
| ADI Benchmark 8208 | <<locked>> | 86% | 38,537 psi | 64% | 2444 fps | 95.8% |
| Alliant AR-Comp | <<locked>> | 80% | 29,631 psi | 49% | 2316 fps | 99.9% |
| Alliant Power Pro 1200-R | 50.8 gr | 82% | 38,406 psi | 64% | 2520 fps | 95.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 98% | 49,429 psi | 82% | 2746 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 37,536 psi | 62% | 2480 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 37,391 psi | 62% | 2411 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 43,961 psi | 73% | 2595 fps | 95.2% |
| Alliant Reloder-7 | <<locked>> | 80% | 45,295 psi | 75% | 2490 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 39,740 psi | 66% | 2392 fps | 99.4% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 46,267 psi | 77% | 2625 fps | 95% |
| Bofors RP3 | <<locked>> | 94% | 36,622 psi | 61% | 2477 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 34,127 psi | 57% | 2310 fps | 95% |
| Hodgdon BL-C2 | 56.7 gr | 86% | 35,578 psi | 59% | 2444 fps | 95.6% |
| Hodgdon CFE223 | <<locked>> | 90% | 45,905 psi | 76% | 2680 fps | 95.6% |
| Hodgdon H322 | <<locked>> | 80% | 33,286 psi | 55% | 2356 fps | 97.9% |
| Hodgdon H335 | <<locked>> | 80% | 38,551 psi | 64% | 2470 fps | 98.3% |
| Hodgdon H4198 | <<locked>> | 80% | 42,859 psi | 71% | 2441 fps | 99.3% |
| Hodgdon H4895 | <<locked>> | 88% | 38,711 psi | 64% | 2484 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 39,407 psi | 65% | 2539 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,381 psi | 41% | 1424 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 39,262 psi | 65% | 2474 fps | 95% |
| IMR 3031 | <<locked>> | 80% | 26,005 psi | 43% | 2224 fps | 95.9% |
| IMR 4064 | <<locked>> | 98% | 43,279 psi | 72% | 2533 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 38,798 psi | 64% | 2395 fps | 100% |
| IMR 4895 | <<locked>> | 94% | 42,018 psi | 70% | 2575 fps | 95.5% |
| IMR 8208 XBR | <<locked>> | 86% | 38,537 psi | 64% | 2444 fps | 95.8% |
| Lovex D073.4 | <<locked>> | 80% | 42,714 psi | 71% | 2530 fps | 98.4% |
| Lovex D073.5 | <<locked>> | 80% | 34,505 psi | 57% | 2369 fps | 95.6% |
| Lovex D073.6 | <<locked>> | 84% | 31,125 psi | 52% | 2339 fps | 95.4% |
| Lovex S053 | <<locked>> | 80% | 50,386 psi | 84% | 2474 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 42,627 psi | 71% | 2474 fps | 95.4% |
| Lovex S062 | <<locked>> | 90% | 35,549 psi | 59% | 2405 fps | 95% |
| Norma 200 | <<locked>> | 80% | 42,061 psi | 70% | 2477 fps | 100% |
| Norma 201 | <<locked>> | 88% | 37,463 psi | 62% | 2428 fps | 95.6% |
| Norma 202 | <<locked>> | 80% | 28,776 psi | 48% | 2251 fps | 95.2% |
| Norma 203B | <<locked>> | 96% | 43,018 psi | 71% | 2585 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 96% | 43,294 psi | 72% | 2595 fps | 95.2% |
| Ramshot Wild Boar | 59.6 gr | 90% | 42,583 psi | 71% | 2556 fps | 95.4% |
| Ramshot X-Terminator | <<locked>> | 86% | 42,351 psi | 70% | 2493 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,308 psi | 40% | 1457 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 35,636 psi | 59% | 2385 fps | 96.5% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 45,919 psi | 76% | 2694 fps | 95.7% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 35,839 psi | 60% | 2493 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 32,227 psi | 54% | 2297 fps | 96.2% |
| Rottweil R 902 | <<locked>> | 90% | 37,695 psi | 63% | 2425 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 98% | 38,856 psi | 65% | 2513 fps | 95.3% |
| Shooters World AR Plus | <<locked>> | 80% | 42,714 psi | 71% | 2530 fps | 98.4% |
| Shooters World Match Rifle | <<locked>> | 84% | 31,125 psi | 52% | 2339 fps | 95.4% |
| Shooters World Precision | <<locked>> | 90% | 35,549 psi | 59% | 2405 fps | 95% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 37,898 psi | 63% | 2398 fps | 95.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 46,253 psi | 77% | 2274 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 39,755 psi | 66% | 2487 fps | 98.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 38,101 psi | 63% | 2421 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 42,192 psi | 70% | 2539 fps | 95.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 31,227 psi | 52% | 2231 fps | 96.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 26,687 psi | 44% | 2139 fps | 95.4% |
| Somchem S321 | <<locked>> | 82% | 35,868 psi | 60% | 2415 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 30,414 psi | 51% | 2234 fps | 96.8% |
| Somchem S341 | <<locked>> | 92% | 43,903 psi | 73% | 2556 fps | 95.6% |
| Somchem S355 | <<locked>> | 98% | 40,567 psi | 67% | 2526 fps | 95.5% |
| Vihtavuori N120 | <<locked>> | 80% | 44,338 psi | 74% | 2438 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 35,665 psi | 59% | 2329 fps | 99.8% |
| Vihtavuori N133 | <<locked>> | 80% | 31,082 psi | 52% | 2244 fps | 98.5% |
| Vihtavuori N135 | <<locked>> | 80% | 25,962 psi | 43% | 2195 fps | 97.2% |
| Vihtavuori N140 | <<locked>> | 82% | 29,080 psi | 48% | 2244 fps | 95.7% |
| Vihtavuori N150 | <<locked>> | 94% | 34,171 psi | 57% | 2372 fps | 95% |
| Vihtavuori N530 | <<locked>> | 84% | 35,853 psi | 60% | 2388 fps | 95% |
| Vihtavuori N540 | <<locked>> | 84% | 29,849 psi | 50% | 2274 fps | 95.4% |
| Winchester 748 | <<locked>> | 82% | 34,795 psi | 58% | 2425 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 84% | 39,856 psi | 66% | 2516 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 85 powders for 9.3 x 66 Sako loaded with the .366 | 220gr | Atomic 29 HP. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,805 fps; across all powders the maximum-charge window runs from 1,598 fps to 2,805 fps. Accurate 2495 gives the best case fill at 100 %, and 85 of the 85 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 220.0 gr projectile in 0.366" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, ADI AR 2208 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, Ramshot Wild Boar, Hodgdon BL-C2 rank at the top here: for 9.3 x 66 Sako with the .366 | 220gr | Atomic 29 HP 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.