Load Specifications
Load data in caliber 9.3 x 66 Sako with .366 | 225gr | RWS Doppelkern bullet and 88 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, ReloadSwiss RS 52 and Hodgdon CFE223.
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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 92% | 52,011 psi | 86% | 2618 fps | 100% |
| Accurate 2200 | <<locked>> | 84% | 52,823 psi | 88% | 2694 fps | 97.4% |
| Accurate 2230 | <<locked>> | 84% | 53,432 psi | 89% | 2703 fps | 97.9% |
| Accurate 2460 | <<locked>> | 90% | 53,969 psi | 90% | 2680 fps | 100% |
| Accurate 2495 | <<locked>> | 98% | 51,213 psi | 85% | 2664 fps | 100% |
| Accurate 2520 | <<locked>> | 94% | 52,939 psi | 88% | 2717 fps | 99.9% |
| Accurate 2520 | <<locked>> | 94% | 52,939 psi | 88% | 2717 fps | 99.9% |
| Accurate 4064ᴾ | <<locked>> | 100% | 50,546 psi | 84% | 2690 fps | 100% |
| Accurate LT-30 | <<locked>> | 86% | 53,185 psi | 88% | 2572 fps | 100% |
| Accurate LT-32 | <<locked>> | 86% | 53,635 psi | 89% | 2592 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 96% | 54,056 psi | 90% | 2726 fps | 98.4% |
| ADI AR 2207 | <<locked>> | 84% | 54,433 psi | 90% | 2598 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 51,706 psi | 86% | 2667 fps | 97.3% |
| ADI AR 2219 | <<locked>> | 86% | 52,707 psi | 88% | 2680 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 94% | 53,940 psi | 90% | 2694 fps | 99.2% |
| Alliant AR-Comp | <<locked>> | 94% | 52,315 psi | 87% | 2687 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 51,547 psi | 86% | 2740 fps | 98.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 98% | 53,824 psi | 89% | 2818 fps | 97.5% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 50,241 psi | 83% | 2687 fps | 98.6% |
| Alliant Reloder-10x | <<locked>> | 88% | 52,330 psi | 87% | 2631 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 98% | 51,213 psi | 85% | 2703 fps | 97.5% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 44,628 psi | 74% | 2664 fps | 96.9% |
| Alliant Reloder-7 | <<locked>> | 82% | 52,243 psi | 87% | 2572 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 51,982 psi | 86% | 2572 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 53,896 psi | 90% | 2740 fps | 97.4% |
| Bofors RP3ᴾ | <<locked>> | 100% | 50,024 psi | 83% | 2697 fps | 98.7% |
| Hodgdon Benchmark | <<locked>> | 92% | 53,301 psi | 89% | 2641 fps | 99.5% |
| Hodgdon BL-C2 | <<locked>> | 94% | 51,909 psi | 86% | 2717 fps | 99.4% |
| Hodgdon CFE223 | <<locked>> | 92% | 53,722 psi | 89% | 2799 fps | 98% |
| Hodgdon H322 | <<locked>> | 88% | 51,169 psi | 85% | 2661 fps | 100% |
| Hodgdon H335 | <<locked>> | 88% | 52,286 psi | 87% | 2684 fps | 100% |
| Hodgdon H380ᴾ | <<locked>> | 100% | 52,185 psi | 87% | 2703 fps | 96.3% |
| Hodgdon H4198 | <<locked>> | 82% | 51,924 psi | 86% | 2572 fps | 100% |
| Hodgdon H4895 | <<locked>> | 96% | 54,462 psi | 90% | 2740 fps | 98.9% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 52,765 psi | 88% | 2762 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,866 psi | 56% | 1604 fps | 100% |
| Hodgdon VARGET | <<locked>> | 96% | 52,779 psi | 88% | 2694 fps | 98.6% |
| IMR 3031 | <<locked>> | 96% | 53,055 psi | 88% | 2740 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 54,433 psi | 90% | 2700 fps | 98% |
| IMR 4198 | <<locked>> | 88% | 53,069 psi | 88% | 2595 fps | 100% |
| IMR 4895 | <<locked>> | 98% | 52,460 psi | 87% | 2740 fps | 98.3% |
| IMR 8208 XBR | <<locked>> | 94% | 53,940 psi | 90% | 2694 fps | 99.2% |
| Lovex D073.4 | <<locked>> | 84% | 54,143 psi | 90% | 2690 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 90% | 53,896 psi | 90% | 2687 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 96% | 52,388 psi | 87% | 2707 fps | 99.9% |
| Lovex S060 | <<locked>> | 94% | 51,982 psi | 86% | 2618 fps | 98.1% |
| Lovex S062ᴾ | <<locked>> | 100% | 53,548 psi | 89% | 2703 fps | 99.3% |
| Norma 200 | <<locked>> | 84% | 52,214 psi | 87% | 2605 fps | 100% |
| Norma 201 | <<locked>> | 96% | 52,866 psi | 88% | 2680 fps | 99.2% |
| Norma 202 | <<locked>> | 96% | 52,910 psi | 88% | 2690 fps | 100% |
| Norma 203Bᴾ | <<locked>> | 100% | 53,577 psi | 89% | 2743 fps | 98.4% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 54,186 psi | 90% | 2766 fps | 98.2% |
| Ramshot Wild Boar | <<locked>> | 94% | 53,214 psi | 88% | 2720 fps | 98.2% |
| Ramshot X-Terminator | <<locked>> | 90% | 52,272 psi | 87% | 2648 fps | 97.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,968 psi | 56% | 1640 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 53,838 psi | 89% | 2687 fps | 99.8% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 54,099 psi | 90% | 2815 fps | 98% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 47,747 psi | 79% | 2740 fps | 99.5% |
| Rottweil R 901 | <<locked>> | 94% | 53,998 psi | 90% | 2674 fps | 100% |
| Rottweil R 902 | <<locked>> | 98% | 53,185 psi | 88% | 2674 fps | 99.2% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 46,427 psi | 77% | 2631 fps | 97.8% |
| Shooters World AR Plus | <<locked>> | 84% | 54,143 psi | 90% | 2690 fps | 99.9% |
| Shooters World Match Rifle | <<locked>> | 96% | 52,388 psi | 87% | 2707 fps | 99.9% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 53,548 psi | 89% | 2703 fps | 99.3% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 54,273 psi | 90% | 2657 fps | 99% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 51,663 psi | 86% | 2323 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 53,142 psi | 88% | 2690 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 48,747 psi | 81% | 2690 fps | 97.4% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 53,214 psi | 88% | 2644 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 94% | 52,257 psi | 87% | 2671 fps | 96.1% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 52,620 psi | 87% | 2700 fps | 98.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 52,605 psi | 87% | 2598 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 51,300 psi | 85% | 2589 fps | 100% |
| Somchem S321 | <<locked>> | 90% | 51,561 psi | 86% | 2680 fps | 99.2% |
| Somchem S335 | <<locked>> | 96% | 54,331 psi | 90% | 2641 fps | 100% |
| Somchem S341 | <<locked>> | 94% | 51,576 psi | 86% | 2667 fps | 97.9% |
| Somchem S355ᴾ | <<locked>> | 100% | 47,645 psi | 79% | 2638 fps | 97.8% |
| Vihtavuori N120 | <<locked>> | 84% | 54,360 psi | 90% | 2549 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 52,402 psi | 87% | 2579 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 52,199 psi | 87% | 2592 fps | 100% |
| Vihtavuori N135 | <<locked>> | 98% | 51,445 psi | 85% | 2657 fps | 100% |
| Vihtavuori N140 | <<locked>> | 98% | 53,621 psi | 89% | 2674 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 45,919 psi | 76% | 2579 fps | 98.6% |
| Vihtavuori N530 | <<locked>> | 94% | 54,447 psi | 90% | 2694 fps | 99.3% |
| Vihtavuori N540 | <<locked>> | 98% | 51,634 psi | 86% | 2667 fps | 99.9% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 42,453 psi | 71% | 2513 fps | 96.2% |
| Winchester 748 | <<locked>> | 94% | 52,823 psi | 88% | 2736 fps | 99.6% |
| Winchester StaBALL Match | <<locked>> | 96% | 51,822 psi | 86% | 2707 fps | 98.6% |
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 2015 | <<locked>> | 80% | 35,882 psi | 60% | 2352 fps | 99.7% |
| Accurate 2200 | <<locked>> | 80% | 46,340 psi | 77% | 2585 fps | 96.1% |
| Accurate 2230 | <<locked>> | 80% | 46,383 psi | 77% | 2592 fps | 96.5% |
| Accurate 2460 | <<locked>> | 80% | 38,551 psi | 64% | 2431 fps | 98.5% |
| Accurate 2495 | <<locked>> | 80% | 28,282 psi | 47% | 2244 fps | 98.6% |
| Accurate 2520 | <<locked>> | 80% | 32,474 psi | 54% | 2352 fps | 96.5% |
| Accurate 2520 | <<locked>> | 80% | 32,474 psi | 54% | 2352 fps | 96.5% |
| Accurate 4064 | <<locked>> | 80% | 26,789 psi | 45% | 2218 fps | 95.5% |
| Accurate LT-30 | <<locked>> | 80% | 44,440 psi | 74% | 2441 fps | 99.9% |
| Accurate LT-32 | <<locked>> | 80% | 44,802 psi | 74% | 2454 fps | 99.2% |
| ADI AR 2206H | <<locked>> | 86% | 39,697 psi | 66% | 2480 fps | 95.3% |
| ADI AR 2207 | <<locked>> | 80% | 47,979 psi | 80% | 2513 fps | 100% |
| ADI AR 2208 | <<locked>> | 94% | 43,221 psi | 72% | 2526 fps | 95.4% |
| ADI AR 2219 | <<locked>> | 80% | 43,105 psi | 72% | 2533 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 34,766 psi | 58% | 2349 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 80% | 32,938 psi | 55% | 2372 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 39,581 psi | 66% | 2526 fps | 96.1% |
| Alliant Power Pro 2000-MR | 64.7 gr | 94% | 46,934 psi | 78% | 2700 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 36,550 psi | 61% | 2441 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 40,944 psi | 68% | 2454 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 42,569 psi | 71% | 2556 fps | 95.5% |
| Alliant Reloder-17 | <<locked>> | 96% | 39,189 psi | 65% | 2552 fps | 95% |
| Alliant Reloder-7 | <<locked>> | 80% | 49,008 psi | 81% | 2526 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 42,888 psi | 71% | 2434 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 44,179 psi | 73% | 2579 fps | 95.2% |
| Bofors RP3 | <<locked>> | 90% | 35,810 psi | 59% | 2441 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 37,043 psi | 62% | 2359 fps | 96.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 32,314 psi | 54% | 2352 fps | 95.1% |
| Hodgdon CFE223 | 60.6 gr | 86% | 43,845 psi | 73% | 2631 fps | 95.8% |
| Hodgdon H322 | <<locked>> | 80% | 39,494 psi | 66% | 2467 fps | 99.5% |
| Hodgdon H335 | <<locked>> | 80% | 39,769 psi | 66% | 2477 fps | 98.9% |
| Hodgdon H380 | <<locked>> | 98% | 48,936 psi | 81% | 2651 fps | 95.6% |
| Hodgdon H4198 | <<locked>> | 80% | 48,950 psi | 81% | 2526 fps | 100% |
| Hodgdon H4895 | <<locked>> | 84% | 37,492 psi | 62% | 2441 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 35,723 psi | 59% | 2448 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,990 psi | 42% | 1430 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 38,624 psi | 64% | 2448 fps | 95.5% |
| IMR 3031 | <<locked>> | 80% | 31,575 psi | 52% | 2356 fps | 98.6% |
| IMR 4064 | <<locked>> | 92% | 42,612 psi | 71% | 2507 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 42,076 psi | 70% | 2434 fps | 100% |
| IMR 4895 | <<locked>> | 88% | 38,334 psi | 64% | 2487 fps | 95% |
| IMR 8208 XBR | <<locked>> | 80% | 34,766 psi | 58% | 2349 fps | 95.1% |
| Lovex D073.4 | <<locked>> | 80% | 46,978 psi | 78% | 2585 fps | 99.3% |
| Lovex D073.5 | <<locked>> | 80% | 38,348 psi | 64% | 2431 fps | 97.4% |
| Lovex D073.6 | <<locked>> | 80% | 30,545 psi | 51% | 2306 fps | 95.7% |
| Lovex S060 | <<locked>> | 86% | 41,017 psi | 68% | 2434 fps | 95.7% |
| Lovex S062 | <<locked>> | 86% | 34,824 psi | 58% | 2372 fps | 95.4% |
| Norma 200 | <<locked>> | 80% | 46,195 psi | 77% | 2520 fps | 100% |
| Norma 201 | <<locked>> | 82% | 34,272 psi | 57% | 2343 fps | 95.1% |
| Norma 202 | <<locked>> | 80% | 32,082 psi | 53% | 2313 fps | 97.1% |
| Norma 203B | <<locked>> | 90% | 39,175 psi | 65% | 2497 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 92% | 41,597 psi | 69% | 2552 fps | 95.5% |
| Ramshot Wild Boar | <<locked>> | 86% | 40,828 psi | 68% | 2510 fps | 95.6% |
| Ramshot X-Terminator | <<locked>> | 82% | 40,408 psi | 67% | 2444 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,193 psi | 42% | 1467 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 39,059 psi | 65% | 2441 fps | 97.9% |
| ReloadSwiss RS 52 | 60.1 gr | 90% | 41,466 psi | 69% | 2598 fps | 95.1% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 34,519 psi | 57% | 2454 fps | 96% |
| Rottweil R 901 | <<locked>> | 80% | 35,708 psi | 59% | 2356 fps | 97.8% |
| Rottweil R 902 | <<locked>> | 84% | 34,621 psi | 58% | 2343 fps | 95.2% |
| Rottweil R 903 | <<locked>> | 94% | 38,218 psi | 63% | 2484 fps | 95.8% |
| Shooters World AR Plus | <<locked>> | 80% | 46,978 psi | 78% | 2585 fps | 99.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 30,545 psi | 51% | 2306 fps | 95.7% |
| Shooters World Precision | <<locked>> | 86% | 34,824 psi | 58% | 2372 fps | 95.4% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 41,423 psi | 69% | 2451 fps | 96.8% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 48,950 psi | 81% | 2290 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 43,468 psi | 72% | 2536 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 40,306 psi | 67% | 2536 fps | 95.2% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 41,495 psi | 69% | 2464 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 48,791 psi | 81% | 2615 fps | 95.3% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 40,669 psi | 68% | 2497 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 34,142 psi | 57% | 2280 fps | 97.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 27,644 psi | 46% | 2149 fps | 96.5% |
| Somchem S321 | <<locked>> | 80% | 36,782 psi | 61% | 2418 fps | 96.3% |
| Somchem S335 | <<locked>> | 80% | 33,504 psi | 56% | 2287 fps | 98.2% |
| Somchem S341 | <<locked>> | 86% | 39,291 psi | 65% | 2461 fps | 95% |
| Somchem S355 | <<locked>> | 92% | 37,246 psi | 62% | 2444 fps | 95.2% |
| Vihtavuori N120 | <<locked>> | 80% | 47,993 psi | 80% | 2467 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 38,798 psi | 64% | 2369 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 34,011 psi | 57% | 2290 fps | 99.4% |
| Vihtavuori N135 | <<locked>> | 80% | 29,037 psi | 48% | 2254 fps | 98.7% |
| Vihtavuori N140 | <<locked>> | 80% | 30,168 psi | 50% | 2251 fps | 96.8% |
| Vihtavuori N150 | <<locked>> | 90% | 33,243 psi | 55% | 2339 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 34,534 psi | 57% | 2343 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 80% | 28,979 psi | 48% | 2234 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 39,755 psi | 66% | 2461 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 33,112 psi | 55% | 2372 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 86% | 37,202 psi | 62% | 2448 fps | 95.2% |
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 88 powders for 9.3 x 66 Sako loaded with the .366 | 225gr | RWS Doppelkern. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,818 fps; across all powders the maximum-charge window runs from 1,604 fps to 2,818 fps. Accurate 4064 gives the best case fill at 100 %, and 88 of the 88 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 225.0 gr projectile in 0.366" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 4064, ADI AR 2208, Alliant Reloder- TS 15.5 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, ReloadSwiss RS 52, Hodgdon CFE223 rank at the top here: for 9.3 x 66 Sako with the .366 | 225gr | RWS Doppelkern 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.