Load Specifications
Load data in caliber 7.5 x 54 mm MAS with .308 | 120gr | SAKO Powerhead Blade bullet and 42 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon H322, ADI AR 2219 and Alliant Reloder-10x.
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: 23"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 84% | 47,732 psi | 87% | 2831 fps | 99.8% |
| Accurate 2015 | <<locked>> | 98% | 47,790 psi | 87% | 2913 fps | 99.4% |
| Accurate 2460 | <<locked>> | 96% | 49,516 psi | 90% | 2963 fps | 97.5% |
| Accurate 2495ᴾ | <<locked>> | 100% | 38,783 psi | 70% | 2822 fps | 98.4% |
| Accurate 2520ᴾ | <<locked>> | 100% | 49,705 psi | 90% | 3005 fps | 97.2% |
| Accurate LT-30 | <<locked>> | 90% | 48,617 psi | 88% | 2841 fps | 98.6% |
| Accurate LT-32 | <<locked>> | 90% | 49,124 psi | 89% | 2848 fps | 97% |
| ADI AR 2207 | <<locked>> | 88% | 47,979 psi | 87% | 2897 fps | 100% |
| ADI AR 2219 | <<locked>> | 92% | 49,255 psi | 89% | 2986 fps | 98.6% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 46,876 psi | 85% | 2992 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 94% | 48,428 psi | 88% | 2946 fps | 99.9% |
| Alliant Reloder-7 | <<locked>> | 88% | 49,806 psi | 90% | 2907 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 47,094 psi | 85% | 2831 fps | 98.6% |
| Hodgdon H322 | <<locked>> | 94% | 47,500 psi | 86% | 2956 fps | 98.3% |
| Hodgdon H335 | <<locked>> | 94% | 48,820 psi | 89% | 2979 fps | 97.6% |
| Hodgdon H4198 | <<locked>> | 86% | 47,674 psi | 87% | 2841 fps | 98% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,908 psi | 58% | 1808 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 44,701 psi | 81% | 2969 fps | 98.6% |
| IMR 4198 | <<locked>> | 92% | 47,195 psi | 86% | 2881 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 47,718 psi | 87% | 2818 fps | 100% |
| Lovex D073.4 | <<locked>> | 88% | 47,050 psi | 85% | 2923 fps | 96.3% |
| Lovex D073.5 | <<locked>> | 96% | 49,806 psi | 90% | 2963 fps | 96.2% |
| Lovex S053 | <<locked>> | 84% | 49,313 psi | 89% | 2815 fps | 100% |
| Norma 200 | <<locked>> | 90% | 48,573 psi | 88% | 2930 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 45,310 psi | 82% | 2913 fps | 97% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,778 psi | 58% | 1850 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 47,369 psi | 86% | 2851 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 47,355 psi | 86% | 2923 fps | 96.2% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 49,647 psi | 90% | 2956 fps | 97.6% |
| Shooters World AR Plus | <<locked>> | 88% | 47,050 psi | 85% | 2923 fps | 96.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 47,819 psi | 87% | 2638 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 92% | 49,864 psi | 90% | 2989 fps | 97.7% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 49,458 psi | 90% | 2956 fps | 99.2% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 49,255 psi | 89% | 2881 fps | 97.5% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 39,407 psi | 72% | 2713 fps | 96.4% |
| Somchem S335ᴾ | <<locked>> | 100% | 47,543 psi | 86% | 2881 fps | 98.1% |
| Vihtavuori N120 | <<locked>> | 88% | 48,080 psi | 87% | 2851 fps | 100% |
| Vihtavuori N130 | <<locked>> | 96% | 49,110 psi | 89% | 2894 fps | 99.8% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 48,254 psi | 88% | 2887 fps | 99.4% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 40,176 psi | 73% | 2831 fps | 98.5% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 43,120 psi | 78% | 2844 fps | 96.8% |
| Winchester 748ᴾ | <<locked>> | 100% | 48,820 psi | 89% | 3002 fps | 95.9% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 42,018 psi | 76% | 2726 fps | 99.3% |
| Accurate 2015 | <<locked>> | 84% | 30,545 psi | 55% | 2549 fps | 95.4% |
| Accurate 2460 | <<locked>> | 90% | 40,408 psi | 73% | 2792 fps | 95.3% |
| Accurate 2495 | <<locked>> | 92% | 29,573 psi | 54% | 2598 fps | 95.6% |
| Accurate 2520 | <<locked>> | 96% | 43,076 psi | 78% | 2887 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 80% | 35,882 psi | 65% | 2585 fps | 95.6% |
| Accurate LT-32 | <<locked>> | 86% | 43,613 psi | 79% | 2746 fps | 95.7% |
| ADI AR 2207 | <<locked>> | 80% | 37,594 psi | 68% | 2707 fps | 100% |
| ADI AR 2219 | 38 gr | 82% | 35,288 psi | 64% | 2697 fps | 95% |
| Alliant AR-Comp | <<locked>> | 80% | 24,903 psi | 45% | 2444 fps | 95.2% |
| Alliant Reloder-10x | 33.9 gr | 80% | 31,386 psi | 57% | 2585 fps | 97% |
| Alliant Reloder-7 | <<locked>> | 80% | 38,783 psi | 70% | 2700 fps | 99.2% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 33,939 psi | 62% | 2562 fps | 95.3% |
| Hodgdon H322 | 38.5 gr | 86% | 36,622 psi | 66% | 2730 fps | 95.5% |
| Hodgdon H335 | <<locked>> | 88% | 39,769 psi | 72% | 2802 fps | 95.4% |
| Hodgdon H4198 | <<locked>> | 80% | 39,595 psi | 72% | 2684 fps | 96.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,525 psi | 43% | 1617 fps | 100% |
| IMR 3031 | <<locked>> | 92% | 34,679 psi | 63% | 2743 fps | 95.8% |
| IMR 4198 | <<locked>> | 80% | 33,315 psi | 60% | 2589 fps | 98.4% |
| IMR 4227 | <<locked>> | 80% | 44,962 psi | 82% | 2772 fps | 100% |
| Lovex D073.4 | <<locked>> | 86% | 43,976 psi | 80% | 2867 fps | 95.5% |
| Lovex D073.5 | <<locked>> | 94% | 46,267 psi | 84% | 2900 fps | 95.4% |
| Lovex S053 | <<locked>> | 80% | 43,918 psi | 80% | 2726 fps | 100% |
| Norma 200 | <<locked>> | 80% | 35,404 psi | 64% | 2671 fps | 98.7% |
| Norma 202 | <<locked>> | 96% | 40,074 psi | 73% | 2812 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,308 psi | 42% | 1654 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 44,425 psi | 81% | 2799 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 44,454 psi | 81% | 2867 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 92% | 39,175 psi | 71% | 2753 fps | 95% |
| Shooters World AR Plus | <<locked>> | 86% | 43,976 psi | 80% | 2867 fps | 95.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 40,814 psi | 74% | 2526 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 40,654 psi | 74% | 2812 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 33,997 psi | 62% | 2638 fps | 95.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 41,002 psi | 74% | 2730 fps | 95.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 37,202 psi | 68% | 2664 fps | 95.7% |
| Somchem S335 | <<locked>> | 92% | 37,304 psi | 68% | 2677 fps | 95.7% |
| Vihtavuori N120 | <<locked>> | 80% | 37,695 psi | 68% | 2667 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 30,139 psi | 55% | 2493 fps | 96.2% |
| Vihtavuori N133 | <<locked>> | 86% | 31,575 psi | 57% | 2543 fps | 95.6% |
| Vihtavuori N135 | <<locked>> | 90% | 29,515 psi | 54% | 2572 fps | 95.1% |
| Vihtavuori N140 | <<locked>> | 96% | 37,956 psi | 69% | 2736 fps | 95.3% |
| Winchester 748 | <<locked>> | 98% | 45,440 psi | 82% | 2940 fps | 95% |
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 42 powders for 7.5 x 54 mm MAS loaded with the .308 | 120gr | SAKO Powerhead Blade. Accurate 2520 delivers the highest muzzle velocity at 3,005 fps; across all powders the maximum-charge window runs from 1,808 fps to 3,005 fps. Accurate 2495 gives the best case fill at 100 %, and 42 of the 42 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 120.0 gr projectile in 0.308" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 2520, 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. Hodgdon H322, ADI AR 2219, Alliant Reloder-10x rank at the top here: for 7.5 x 54 mm MAS with the .308 | 120gr | SAKO Powerhead Blade 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.