Load Specifications
Load data in caliber 7.5 x 54 mm MAS with .308 | 150gr | Swift Scirocco bullet and 78 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon LEVERevolution, Winchester 748 and IMR 3031.
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 2015 | <<locked>> | 90% | 47,688 psi | 87% | 2641 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 48,182 psi | 87% | 2697 fps | 95.7% |
| Accurate 2230 | <<locked>> | 82% | 48,269 psi | 88% | 2703 fps | 96.2% |
| Accurate 2460 | <<locked>> | 88% | 48,907 psi | 89% | 2690 fps | 99.5% |
| Accurate 2495 | <<locked>> | 98% | 49,632 psi | 90% | 2726 fps | 100% |
| Accurate 2520 | <<locked>> | 92% | 49,734 psi | 90% | 2743 fps | 99.4% |
| Accurate 4064ᴾ | <<locked>> | 100% | 49,052 psi | 89% | 2753 fps | 99.8% |
| Accurate LT-30 | <<locked>> | 84% | 49,066 psi | 89% | 2595 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 49,501 psi | 90% | 2612 fps | 99.3% |
| ADI AR 2206H | <<locked>> | 94% | 49,632 psi | 90% | 2740 fps | 97.1% |
| ADI AR 2207 | <<locked>> | 82% | 49,850 psi | 90% | 2628 fps | 100% |
| ADI AR 2208 | <<locked>> | 98% | 47,442 psi | 86% | 2674 fps | 95.7% |
| ADI AR 2219 | <<locked>> | 84% | 48,095 psi | 87% | 2697 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 92% | 49,487 psi | 90% | 2707 fps | 98.2% |
| Alliant AR-Comp | <<locked>> | 92% | 47,326 psi | 86% | 2710 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 46,833 psi | 85% | 2746 fps | 97.2% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 48,907 psi | 89% | 2746 fps | 97.9% |
| Alliant Reloder-10x | <<locked>> | 86% | 47,834 psi | 87% | 2654 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 47,094 psi | 85% | 2713 fps | 95.9% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 47,776 psi | 87% | 2592 fps | 100% |
| Bofors RP3ᴾ | <<locked>> | 100% | 48,791 psi | 89% | 2756 fps | 97.9% |
| Hodgdon Benchmark | <<locked>> | 90% | 49,124 psi | 89% | 2657 fps | 98.6% |
| Hodgdon BL-C2 | <<locked>> | 92% | 47,210 psi | 86% | 2723 fps | 98.4% |
| Hodgdon CFE223 | <<locked>> | 90% | 49,008 psi | 89% | 2805 fps | 96.3% |
| Hodgdon H322 | <<locked>> | 88% | 49,792 psi | 90% | 2723 fps | 100% |
| Hodgdon H335 | <<locked>> | 86% | 47,558 psi | 86% | 2697 fps | 99.5% |
| Hodgdon H4895 | <<locked>> | 92% | 47,050 psi | 85% | 2703 fps | 97.1% |
| Hodgdon LEVERevolution | <<locked>> | 96% | 48,109 psi | 87% | 2769 fps | 97.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,562 psi | 61% | 1660 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 48,602 psi | 88% | 2707 fps | 97.3% |
| IMR 3031 | <<locked>> | 94% | 48,109 psi | 87% | 2756 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 46,905 psi | 85% | 2661 fps | 95.9% |
| IMR 4198 | <<locked>> | 86% | 48,863 psi | 89% | 2625 fps | 100% |
| IMR 4895 | <<locked>> | 96% | 48,138 psi | 87% | 2749 fps | 96.9% |
| IMR 8208 XBR | <<locked>> | 92% | 49,487 psi | 90% | 2707 fps | 98.2% |
| Lovex D073.4 | <<locked>> | 82% | 49,066 psi | 89% | 2700 fps | 99.2% |
| Lovex D073.5 | <<locked>> | 88% | 49,008 psi | 89% | 2697 fps | 98.8% |
| Lovex D073.6 | <<locked>> | 94% | 47,732 psi | 87% | 2723 fps | 99.2% |
| Lovex S060 | <<locked>> | 92% | 47,950 psi | 87% | 2635 fps | 96.7% |
| Lovex S062 | <<locked>> | 98% | 48,834 psi | 89% | 2713 fps | 98.2% |
| Norma 200 | <<locked>> | 82% | 47,921 psi | 87% | 2631 fps | 100% |
| Norma 201 | <<locked>> | 94% | 48,341 psi | 88% | 2690 fps | 98.1% |
| Norma 202 | <<locked>> | 94% | 48,588 psi | 88% | 2710 fps | 99.6% |
| Norma 203B | <<locked>> | 98% | 49,023 psi | 89% | 2753 fps | 97% |
| Ramshot Big Game | <<locked>> | 98% | 49,429 psi | 90% | 2772 fps | 96.7% |
| Ramshot Wild Boar | <<locked>> | 92% | 48,370 psi | 88% | 2723 fps | 96.7% |
| Ramshot X-Terminator | <<locked>> | 88% | 47,921 psi | 87% | 2657 fps | 96.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,649 psi | 61% | 1699 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 49,327 psi | 90% | 2703 fps | 99.2% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 48,994 psi | 89% | 2815 fps | 96.3% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 46,659 psi | 85% | 2795 fps | 98.9% |
| Rottweil R 901 | <<locked>> | 92% | 49,748 psi | 90% | 2697 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 96% | 48,631 psi | 88% | 2687 fps | 98.1% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 45,005 psi | 82% | 2684 fps | 96.8% |
| Shooters World AR Plus | <<locked>> | 82% | 49,066 psi | 89% | 2700 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 94% | 47,732 psi | 87% | 2723 fps | 99.2% |
| Shooters World Precision | <<locked>> | 98% | 48,834 psi | 89% | 2713 fps | 98.2% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 49,559 psi | 90% | 2667 fps | 97.8% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 48,501 psi | 88% | 2703 fps | 99.6% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 47,630 psi | 86% | 2746 fps | 96.4% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 48,675 psi | 88% | 2667 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 48,225 psi | 88% | 2710 fps | 96.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 48,211 psi | 87% | 2618 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 47,181 psi | 86% | 2612 fps | 99.8% |
| Somchem S321 | <<locked>> | 88% | 46,862 psi | 85% | 2684 fps | 98% |
| Somchem S335 | <<locked>> | 94% | 49,850 psi | 90% | 2661 fps | 99.9% |
| Somchem S341 | <<locked>> | 92% | 47,021 psi | 85% | 2674 fps | 96.3% |
| Somchem S355ᴾ | <<locked>> | 100% | 46,354 psi | 84% | 2694 fps | 96.9% |
| Vihtavuori N120 | <<locked>> | 82% | 49,792 psi | 90% | 2582 fps | 100% |
| Vihtavuori N130 | <<locked>> | 88% | 48,182 psi | 87% | 2608 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 47,848 psi | 87% | 2615 fps | 100% |
| Vihtavuori N135 | <<locked>> | 96% | 46,963 psi | 85% | 2677 fps | 100% |
| Vihtavuori N140 | <<locked>> | 96% | 49,066 psi | 89% | 2694 fps | 99.8% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 44,643 psi | 81% | 2635 fps | 97.8% |
| Vihtavuori N530 | <<locked>> | 92% | 49,676 psi | 90% | 2703 fps | 98.3% |
| Vihtavuori N540 | <<locked>> | 96% | 47,079 psi | 85% | 2680 fps | 99.4% |
| Winchester 748 | <<locked>> | 92% | 48,080 psi | 87% | 2746 fps | 98.8% |
| Winchester StaBALL Match | <<locked>> | 94% | 47,137 psi | 86% | 2710 fps | 97.2% |
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 2015 | <<locked>> | 80% | 34,751 psi | 63% | 2405 fps | 99.3% |
| Accurate 2200 | <<locked>> | 80% | 45,310 psi | 82% | 2644 fps | 95% |
| Accurate 2230 | <<locked>> | 80% | 45,034 psi | 82% | 2644 fps | 95.4% |
| Accurate 2460 | <<locked>> | 80% | 37,536 psi | 68% | 2487 fps | 97.7% |
| Accurate 2495 | <<locked>> | 80% | 27,340 psi | 50% | 2290 fps | 97.7% |
| Accurate 2520 | <<locked>> | 80% | 32,808 psi | 60% | 2418 fps | 95.8% |
| Accurate 4064 | <<locked>> | 82% | 27,630 psi | 50% | 2306 fps | 95% |
| Accurate LT-30 | <<locked>> | 80% | 43,511 psi | 79% | 2503 fps | 99.6% |
| Accurate LT-32 | <<locked>> | 80% | 43,874 psi | 80% | 2516 fps | 98.6% |
| ADI AR 2206H | <<locked>> | 90% | 43,772 psi | 79% | 2635 fps | 95.7% |
| ADI AR 2207 | <<locked>> | 80% | 46,818 psi | 85% | 2582 fps | 100% |
| ADI AR 2208 | <<locked>> | 96% | 44,715 psi | 81% | 2628 fps | 95% |
| ADI AR 2219 | <<locked>> | 80% | 41,829 psi | 76% | 2592 fps | 99.4% |
| ADI Benchmark 8208 | <<locked>> | 84% | 38,479 psi | 70% | 2503 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 80% | 32,097 psi | 58% | 2428 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 40,973 psi | 74% | 2631 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 37,956 psi | 69% | 2546 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 39,972 psi | 73% | 2520 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 44,048 psi | 80% | 2657 fps | 95.1% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 42,090 psi | 76% | 2497 fps | 99.6% |
| Bofors RP3 | <<locked>> | 94% | 39,740 psi | 72% | 2595 fps | 95.8% |
| Hodgdon Benchmark | <<locked>> | 80% | 36,172 psi | 66% | 2411 fps | 95.5% |
| Hodgdon BL-C2 | <<locked>> | 84% | 36,013 psi | 65% | 2507 fps | 95.6% |
| Hodgdon CFE223 | <<locked>> | 88% | 45,571 psi | 83% | 2740 fps | 95.4% |
| Hodgdon H322 | <<locked>> | 80% | 38,450 psi | 70% | 2526 fps | 98.9% |
| Hodgdon H335 | <<locked>> | 80% | 38,899 psi | 71% | 2536 fps | 98.2% |
| Hodgdon H4895 | <<locked>> | 88% | 41,481 psi | 75% | 2595 fps | 95.7% |
| Hodgdon LEVERevolution | 44.4 gr | 90% | 39,508 psi | 72% | 2602 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,787 psi | 45% | 1480 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 40,016 psi | 73% | 2549 fps | 95.1% |
| IMR 3031 | 36.5 gr | 80% | 30,516 psi | 55% | 2398 fps | 97.7% |
| IMR 4064 | <<locked>> | 94% | 44,208 psi | 80% | 2615 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 41,031 psi | 74% | 2497 fps | 100% |
| IMR 4895 | <<locked>> | 92% | 42,366 psi | 77% | 2641 fps | 95.4% |
| IMR 8208 XBR | <<locked>> | 84% | 38,479 psi | 70% | 2503 fps | 95.6% |
| Lovex D073.4 | <<locked>> | 80% | 45,774 psi | 83% | 2644 fps | 98.8% |
| Lovex D073.5 | <<locked>> | 80% | 37,101 psi | 67% | 2477 fps | 96.3% |
| Lovex D073.6 | <<locked>> | 82% | 31,604 psi | 57% | 2402 fps | 95.3% |
| Lovex S060 | <<locked>> | 88% | 42,395 psi | 77% | 2533 fps | 95.3% |
| Lovex S062 | <<locked>> | 90% | 38,363 psi | 70% | 2520 fps | 95.7% |
| Norma 200 | <<locked>> | 80% | 45,107 psi | 82% | 2589 fps | 100% |
| Norma 201 | <<locked>> | 86% | 37,710 psi | 68% | 2490 fps | 95.5% |
| Norma 202 | <<locked>> | 80% | 31,183 psi | 57% | 2362 fps | 95.9% |
| Norma 203B | <<locked>> | 94% | 43,178 psi | 78% | 2648 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 94% | 43,366 psi | 79% | 2661 fps | 95.1% |
| Ramshot Wild Boar | <<locked>> | 88% | 42,424 psi | 77% | 2615 fps | 95.2% |
| Ramshot X-Terminator | <<locked>> | 86% | 44,991 psi | 82% | 2605 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,990 psi | 45% | 1519 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 38,000 psi | 69% | 2493 fps | 97% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 46,064 psi | 84% | 2762 fps | 95.6% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 35,911 psi | 65% | 2556 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 34,824 psi | 63% | 2408 fps | 96.9% |
| Rottweil R 902 | <<locked>> | 88% | 38,203 psi | 69% | 2490 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 96% | 39,639 psi | 72% | 2585 fps | 95.4% |
| Shooters World AR Plus | <<locked>> | 80% | 45,774 psi | 83% | 2644 fps | 98.8% |
| Shooters World Match Rifle | <<locked>> | 82% | 31,604 psi | 57% | 2402 fps | 95.3% |
| Shooters World Precision | <<locked>> | 90% | 38,363 psi | 70% | 2520 fps | 95.7% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 40,451 psi | 73% | 2507 fps | 95.8% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 42,496 psi | 77% | 2598 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 44,614 psi | 81% | 2694 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 40,277 psi | 73% | 2523 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 42,264 psi | 77% | 2602 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 33,214 psi | 60% | 2329 fps | 96.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 26,890 psi | 49% | 2192 fps | 95.3% |
| Somchem S321 | <<locked>> | 80% | 35,955 psi | 65% | 2470 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 32,721 psi | 59% | 2339 fps | 97.4% |
| Somchem S341 | <<locked>> | 90% | 43,976 psi | 80% | 2621 fps | 95.5% |
| Somchem S355 | <<locked>> | 96% | 41,031 psi | 74% | 2595 fps | 95.5% |
| Vihtavuori N120 | <<locked>> | 80% | 46,862 psi | 85% | 2539 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 37,782 psi | 69% | 2428 fps | 99.9% |
| Vihtavuori N133 | <<locked>> | 80% | 33,069 psi | 60% | 2343 fps | 98.9% |
| Vihtavuori N135 | <<locked>> | 80% | 28,065 psi | 51% | 2297 fps | 97.8% |
| Vihtavuori N140 | <<locked>> | 80% | 29,443 psi | 53% | 2300 fps | 95.6% |
| Vihtavuori N150 | <<locked>> | 92% | 34,548 psi | 63% | 2438 fps | 95% |
| Vihtavuori N530 | <<locked>> | 84% | 38,276 psi | 69% | 2497 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 82% | 30,153 psi | 55% | 2333 fps | 95.3% |
| Winchester 748 | 40.5 gr | 82% | 34,345 psi | 62% | 2470 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 90% | 41,205 psi | 75% | 2602 fps | 95.6% |
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 93 powders for 7.5 x 54 mm MAS loaded with the .308 | 150gr | Swift Scirocco. ReloadSwiss RS 52 delivers the highest muzzle velocity at 2,815 fps; across all powders the maximum-charge window runs from 1,660 fps to 2,815 fps. Accurate 4064 gives the best case fill at 100 %, and 93 of the 93 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.308" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 4064, Alliant Reloder- TS 15.5, Alliant Reloder-17 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 LEVERevolution, Winchester 748, IMR 3031 rank at the top here: for 7.5 x 54 mm MAS with the .308 | 150gr | Swift Scirocco they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Hodgdon H380, Hodgdon Hybrid 100V, IMR 4166 Enduron 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.