Load Specifications
Load data in caliber 9.3 x 66 Sako with .366 | 154gr | Sax KJG-SR bullet and 40 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Shooters World AR Plus, Lovex D073.4 and ADI AR 2219.
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>> | 88% | 52,591 psi | 87% | 3054 fps | 99.9% |
| Accurate 2015ᴾ | <<locked>> | 100% | 48,457 psi | 81% | 3071 fps | 99.1% |
| Accurate 2460ᴾ | <<locked>> | 100% | 54,244 psi | 90% | 3182 fps | 97.7% |
| Accurate 2495ᴾ | <<locked>> | 100% | 36,550 psi | 61% | 2910 fps | 97.3% |
| Accurate LT-30 | <<locked>> | 94% | 52,794 psi | 88% | 3054 fps | 98.7% |
| Accurate LT-32 | <<locked>> | 94% | 53,287 psi | 89% | 3061 fps | 97.1% |
| ADI AR 2205 | <<locked>> | 82% | 54,259 psi | 90% | 2963 fps | 100% |
| ADI AR 2207 | <<locked>> | 92% | 51,938 psi | 86% | 3117 fps | 100% |
| ADI AR 2219 | <<locked>> | 96% | 53,998 psi | 90% | 3215 fps | 98.7% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 44,759 psi | 74% | 3104 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 98% | 52,315 psi | 87% | 3163 fps | 99.9% |
| Alliant Reloder-7 | <<locked>> | 92% | 53,882 psi | 90% | 3123 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 51,198 psi | 85% | 3038 fps | 98.7% |
| Hodgdon H322ᴾ | <<locked>> | 100% | 50,575 psi | 84% | 3156 fps | 98.3% |
| Hodgdon H335 | <<locked>> | 96% | 53,563 psi | 89% | 3202 fps | 97.9% |
| Hodgdon H4198 | <<locked>> | 92% | 51,401 psi | 85% | 3051 fps | 98% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,647 psi | 53% | 1909 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 38,189 psi | 63% | 2966 fps | 96.2% |
| IMR 4198 | <<locked>> | 98% | 53,867 psi | 89% | 3143 fps | 100% |
| IMR 4227 | <<locked>> | 86% | 51,851 psi | 86% | 3038 fps | 100% |
| Lovex D060 | <<locked>> | 82% | 54,418 psi | 90% | 3127 fps | 100% |
| Lovex D073.4 | <<locked>> | 92% | 51,866 psi | 86% | 3153 fps | 96.6% |
| Lovex S053 | <<locked>> | 88% | 53,272 psi | 89% | 3031 fps | 100% |
| Norma 200 | <<locked>> | 94% | 52,692 psi | 88% | 3150 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,386 psi | 52% | 1952 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 86% | 51,547 psi | 86% | 3071 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 98% | 51,576 psi | 86% | 3140 fps | 96.4% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 47,442 psi | 79% | 3061 fps | 96.5% |
| Shooters World AR Plus | <<locked>> | 92% | 51,866 psi | 86% | 3153 fps | 96.6% |
| Shooters World Buffalo Rifle | <<locked>> | 82% | 54,418 psi | 90% | 3127 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 92% | 53,954 psi | 90% | 2871 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 96% | 54,418 psi | 90% | 3212 fps | 97.9% |
| SNPE Vectan SP 3 | <<locked>> | 98% | 53,374 psi | 89% | 3169 fps | 99.2% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 47,369 psi | 79% | 2989 fps | 96.5% |
| Somchem S335ᴾ | <<locked>> | 100% | 45,556 psi | 76% | 2982 fps | 97.1% |
| Vihtavuori N110 | <<locked>> | 82% | 52,402 psi | 87% | 2933 fps | 100% |
| Vihtavuori N120 | <<locked>> | 92% | 52,040 psi | 86% | 3064 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 53,330 psi | 89% | 3107 fps | 99.9% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 46,354 psi | 77% | 2995 fps | 98.7% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 38,319 psi | 64% | 2930 fps | 97.5% |
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% | 40,335 psi | 67% | 2831 fps | 98.6% |
| Accurate 2015 | <<locked>> | 88% | 33,083 psi | 55% | 2746 fps | 95.6% |
| Accurate 2460 | <<locked>> | 94% | 44,005 psi | 73% | 3002 fps | 95.6% |
| Accurate 2495 | <<locked>> | 96% | 31,720 psi | 53% | 2789 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 82% | 36,622 psi | 61% | 2733 fps | 95% |
| Accurate LT-32 | <<locked>> | 88% | 44,570 psi | 74% | 2900 fps | 95.1% |
| ADI AR 2205 | <<locked>> | 80% | 51,155 psi | 85% | 2917 fps | 100% |
| ADI AR 2207 | <<locked>> | 80% | 35,737 psi | 59% | 2808 fps | 99.9% |
| ADI AR 2219 | 57.6 gr | 86% | 38,580 psi | 64% | 2910 fps | 95.3% |
| Alliant AR-Comp | <<locked>> | 84% | 26,934 psi | 45% | 2638 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 29,834 psi | 50% | 2674 fps | 95.6% |
| Alliant Reloder-7 | <<locked>> | 80% | 37,246 psi | 62% | 2805 fps | 98.4% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 37,072 psi | 62% | 2762 fps | 95.6% |
| Hodgdon H322 | <<locked>> | 92% | 39,131 psi | 65% | 2923 fps | 95.5% |
| Hodgdon H335 | <<locked>> | 90% | 43,337 psi | 72% | 3015 fps | 95.6% |
| Hodgdon H4198 | <<locked>> | 84% | 40,422 psi | 67% | 2838 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,206 psi | 39% | 1709 fps | 100% |
| IMR 3031 | <<locked>> | 98% | 35,969 psi | 60% | 2910 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 31,894 psi | 53% | 2684 fps | 97.3% |
| IMR 4227 | <<locked>> | 80% | 43,163 psi | 72% | 2884 fps | 100% |
| Lovex D060 | <<locked>> | 80% | 51,358 psi | 85% | 3074 fps | 100% |
| Lovex D073.4 | 61.2 gr | 88% | 44,860 psi | 75% | 3025 fps | 95% |
| Lovex S053 | <<locked>> | 80% | 42,148 psi | 70% | 2844 fps | 100% |
| Norma 200 | <<locked>> | 80% | 33,794 psi | 56% | 2769 fps | 97.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,974 psi | 38% | 1745 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 42,699 psi | 71% | 2913 fps | 99.9% |
| ReloadSwiss RS 40 | <<locked>> | 96% | 48,327 psi | 80% | 3084 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 96% | 42,235 psi | 70% | 2956 fps | 95.1% |
| Shooters World AR Plus | 61.2 gr | 88% | 44,860 psi | 75% | 3025 fps | 95% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 51,358 psi | 85% | 3074 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 39,262 psi | 65% | 2641 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 41,655 psi | 69% | 2972 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 34,505 psi | 57% | 2785 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 41,785 psi | 69% | 2881 fps | 95% |
| Somchem S335 | <<locked>> | 94% | 37,942 psi | 63% | 2822 fps | 95.1% |
| Vihtavuori N110 | <<locked>> | 80% | 49,458 psi | 82% | 2887 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 35,853 psi | 60% | 2772 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 30,705 psi | 51% | 2641 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 90% | 34,084 psi | 57% | 2736 fps | 95.7% |
| Vihtavuori N135 | <<locked>> | 94% | 31,763 psi | 53% | 2762 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 68 powders for 9.3 x 66 Sako loaded with the .366 | 154gr | Sax KJG-SR. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 3,232 fps; across all powders the maximum-charge window runs from 1,909 fps to 3,232 fps. Accurate 2015 gives the best case fill at 100 %, and 68 of the 68 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 52–90 %, leaving at least 10 % headroom. The 154.0 gr projectile in 0.366" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2460, Accurate 2495 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. Shooters World AR Plus, Lovex D073.4, ADI AR 2219 rank at the top here: for 9.3 x 66 Sako with the .366 | 154gr | Sax KJG-SR they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2200, Accurate 2230, Accurate 4064 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.