Load Specifications
Load data in caliber 8 x 57 IS with .323 | 108gr | Norma FMJ RN bullet and 26 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2219, Alliant Reloder-10x and Norma 200.
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: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 88% | 49,995 psi | 88% | 3166 fps | 99.3% |
| Accurate 2015ᴾ | <<locked>> | 100% | 45,426 psi | 80% | 3169 fps | 97.9% |
| Accurate 2460ᴾ | <<locked>> | 100% | 50,778 psi | 90% | 3274 fps | 96% |
| Accurate LT-30 | <<locked>> | 94% | 50,343 psi | 89% | 3163 fps | 97.5% |
| ADI AR 2207 | <<locked>> | 92% | 49,124 psi | 87% | 3238 fps | 100% |
| ADI AR 2219 | <<locked>> | 96% | 50,981 psi | 90% | 3317 fps | 97.4% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 41,800 psi | 74% | 3189 fps | 99.3% |
| Alliant Reloder-10x | <<locked>> | 98% | 49,110 psi | 87% | 3271 fps | 99.3% |
| Alliant Reloder-7 | <<locked>> | 92% | 51,140 psi | 90% | 3238 fps | 99.7% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 48,544 psi | 86% | 3140 fps | 97.5% |
| Hodgdon H322 | <<locked>> | 98% | 48,776 psi | 86% | 3274 fps | 97% |
| Hodgdon H335 | <<locked>> | 98% | 50,343 psi | 89% | 3294 fps | 96.2% |
| Hodgdon H4198 | <<locked>> | 90% | 49,211 psi | 87% | 3163 fps | 96.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,067 psi | 55% | 2018 fps | 100% |
| IMR 4198 | <<locked>> | 98% | 51,010 psi | 90% | 3258 fps | 99.9% |
| IMR 4227 | <<locked>> | 86% | 49,371 psi | 87% | 3159 fps | 100% |
| Lovex S053 | <<locked>> | 88% | 50,720 psi | 90% | 3159 fps | 100% |
| Norma 200 | <<locked>> | 94% | 49,298 psi | 87% | 3255 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 30,690 psi | 54% | 2060 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 86% | 48,718 psi | 86% | 3189 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 90% | 48,733 psi | 86% | 2963 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 98% | 50,241 psi | 89% | 3274 fps | 98.1% |
| Vihtavuori N110 | <<locked>> | 82% | 49,937 psi | 88% | 3068 fps | 100% |
| Vihtavuori N120 | <<locked>> | 92% | 49,269 psi | 87% | 3189 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 50,299 psi | 89% | 3215 fps | 99.3% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 43,540 psi | 77% | 3087 fps | 97.4% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 38,101 psi | 67% | 2923 fps | 97.2% |
| Accurate 2015 | <<locked>> | 92% | 35,128 psi | 62% | 2940 fps | 95.1% |
| Accurate 2460 | <<locked>> | 98% | 47,311 psi | 84% | 3209 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 88% | 41,916 psi | 74% | 2992 fps | 95.5% |
| ADI AR 2207 | <<locked>> | 80% | 33,504 psi | 59% | 2907 fps | 99.1% |
| ADI AR 2219 | 48.3 gr | 90% | 41,713 psi | 74% | 3123 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 90% | 30,560 psi | 54% | 2887 fps | 95.9% |
| Alliant Reloder-10x | 41.1 gr | 84% | 31,575 psi | 56% | 2867 fps | 95.1% |
| Alliant Reloder-7 | <<locked>> | 80% | 35,244 psi | 62% | 2900 fps | 97% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 40,089 psi | 71% | 2966 fps | 95.4% |
| Hodgdon H322 | <<locked>> | 94% | 43,018 psi | 76% | 3153 fps | 95.5% |
| Hodgdon H335 | <<locked>> | 96% | 47,021 psi | 83% | 3232 fps | 95.4% |
| Hodgdon H4198 | <<locked>> | 86% | 43,526 psi | 77% | 3048 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,785 psi | 40% | 1804 fps | 100% |
| IMR 4198 | <<locked>> | 80% | 30,226 psi | 53% | 2772 fps | 95.4% |
| IMR 4227 | <<locked>> | 80% | 40,988 psi | 72% | 2995 fps | 99.5% |
| Lovex S053 | <<locked>> | 80% | 40,016 psi | 71% | 2959 fps | 100% |
| Norma 200 | 40.6 gr | 80% | 31,531 psi | 56% | 2851 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,597 psi | 40% | 1850 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 40,451 psi | 72% | 3022 fps | 99.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 37,449 psi | 66% | 2766 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 39,233 psi | 69% | 3045 fps | 95.5% |
| Vihtavuori N110 | <<locked>> | 80% | 47,050 psi | 83% | 3018 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 33,721 psi | 60% | 2874 fps | 99.7% |
| Vihtavuori N130 | <<locked>> | 86% | 32,721 psi | 58% | 2831 fps | 95.2% |
| Vihtavuori N133 | <<locked>> | 94% | 36,419 psi | 64% | 2927 fps | 95.3% |
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 26 powders for 8 x 57 IS loaded with the .323 | 108gr | Norma FMJ RN. ADI AR 2219 delivers the highest muzzle velocity at 3,317 fps; across all powders the maximum-charge window runs from 2,018 fps to 3,317 fps. Accurate 2015 gives the best case fill at 100 %, and 26 of the 26 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. Accurate 2015, Accurate 2460, Alliant AR-Comp 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. ADI AR 2219, Alliant Reloder-10x, Norma 200 rank at the top here: for 8 x 57 IS with the .323 | 108gr | Norma FMJ RN 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.