Load Specifications
Load data in caliber 7.5 x 54 mm MAS with .308 | 170gr | Swift A-Frame bullet and 79 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 60 and Alliant Reloder-17.
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"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 84% | 47,166 psi | 86% | 2497 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 48,515 psi | 88% | 2556 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 47,587 psi | 86% | 2556 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 49,690 psi | 90% | 2612 fps | 100% |
| Accurate 4064 | <<locked>> | 92% | 47,500 psi | 86% | 2589 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 45,876 psi | 83% | 2628 fps | 97.1% |
| ADI AR 2206H | <<locked>> | 88% | 49,400 psi | 90% | 2615 fps | 98.8% |
| ADI AR 2208 | <<locked>> | 92% | 47,152 psi | 86% | 2559 fps | 97.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 48,544 psi | 88% | 2572 fps | 99.4% |
| Alliant AR-Comp | <<locked>> | 86% | 48,124 psi | 87% | 2569 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 49,864 psi | 90% | 2667 fps | 99.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 48,283 psi | 88% | 2700 fps | 97.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 49,226 psi | 89% | 2628 fps | 99.3% |
| Alliant Reloder-15 | <<locked>> | 90% | 47,166 psi | 86% | 2598 fps | 98% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 45,701 psi | 83% | 2628 fps | 97.1% |
| Alliant Reloder-17 | <<locked>> | 98% | 49,458 psi | 90% | 2726 fps | 99.2% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 48,660 psi | 88% | 2621 fps | 97.8% |
| Bofors RP3 | <<locked>> | 94% | 49,211 psi | 89% | 2638 fps | 99.4% |
| Hodgdon Benchmark | <<locked>> | 84% | 48,022 psi | 87% | 2523 fps | 99.6% |
| Hodgdon BL-C2 | <<locked>> | 86% | 47,079 psi | 85% | 2595 fps | 99.6% |
| Hodgdon CFE223 | <<locked>> | 84% | 48,472 psi | 88% | 2677 fps | 98.3% |
| Hodgdon H322 | <<locked>> | 82% | 48,950 psi | 89% | 2579 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 47,630 psi | 86% | 2595 fps | 96.8% |
| Hodgdon H4895 | <<locked>> | 88% | 49,777 psi | 90% | 2628 fps | 99.2% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 41,901 psi | 76% | 2523 fps | 97.8% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 47,964 psi | 87% | 2648 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,664 psi | 63% | 1604 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 47,863 psi | 87% | 2579 fps | 98.9% |
| IMR 3031 | <<locked>> | 88% | 48,689 psi | 88% | 2618 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 49,647 psi | 90% | 2595 fps | 98.4% |
| IMR 4831ᴾ | <<locked>> | 100% | 43,714 psi | 79% | 2572 fps | 96.6% |
| IMR 4895 | <<locked>> | 90% | 48,298 psi | 88% | 2631 fps | 98.7% |
| IMR 8208 XBR | <<locked>> | 86% | 48,544 psi | 88% | 2572 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 82% | 48,167 psi | 87% | 2559 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 88% | 47,964 psi | 87% | 2595 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 49,647 psi | 90% | 2552 fps | 98.8% |
| Lovex S062 | <<locked>> | 92% | 49,110 psi | 89% | 2595 fps | 99.5% |
| Lovex S065 | <<locked>> | 98% | 48,283 psi | 88% | 2579 fps | 96% |
| Norma 201 | <<locked>> | 88% | 48,254 psi | 88% | 2569 fps | 99.4% |
| Norma 202 | <<locked>> | 88% | 48,385 psi | 88% | 2579 fps | 100% |
| Norma 203B | <<locked>> | 92% | 49,327 psi | 90% | 2638 fps | 98.8% |
| Norma URPᴾ | <<locked>> | 100% | 45,818 psi | 83% | 2621 fps | 96.9% |
| Ramshot Big Game | <<locked>> | 92% | 49,443 psi | 90% | 2657 fps | 98.7% |
| Ramshot TAC | <<locked>> | 86% | 48,979 psi | 89% | 2582 fps | 96.4% |
| Ramshot Wild Boar | <<locked>> | 86% | 47,848 psi | 87% | 2598 fps | 98.5% |
| Ramshot X-Terminator | <<locked>> | 84% | 49,690 psi | 90% | 2575 fps | 98.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,882 psi | 63% | 1640 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 48,225 psi | 88% | 2562 fps | 99.9% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 49,632 psi | 90% | 2703 fps | 98.4% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 49,284 psi | 89% | 2733 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 45,556 psi | 83% | 2641 fps | 96.6% |
| Rottweil R 901 | <<locked>> | 86% | 49,327 psi | 90% | 2559 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 48,530 psi | 88% | 2566 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 96% | 49,095 psi | 89% | 2628 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 98% | 48,283 psi | 88% | 2579 fps | 96% |
| Shooters World Match Rifle | <<locked>> | 88% | 47,964 psi | 87% | 2595 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 49,110 psi | 89% | 2595 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 47,732 psi | 87% | 2638 fps | 98.5% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 46,702 psi | 85% | 2549 fps | 96.5% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 47,601 psi | 86% | 2582 fps | 98.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 47,123 psi | 86% | 2480 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 49,719 psi | 90% | 2523 fps | 100% |
| Somchem S321 | <<locked>> | 84% | 49,472 psi | 90% | 2608 fps | 99.6% |
| Somchem S335 | <<locked>> | 88% | 49,487 psi | 90% | 2526 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 49,705 psi | 90% | 2605 fps | 98.7% |
| Somchem S355 | <<locked>> | 94% | 47,021 psi | 85% | 2585 fps | 98.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 40,843 psi | 74% | 2572 fps | 98.8% |
| Vihtavuori N130 | <<locked>> | 82% | 47,297 psi | 86% | 2461 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 47,181 psi | 86% | 2474 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 47,688 psi | 87% | 2549 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 48,892 psi | 89% | 2562 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 48,124 psi | 87% | 2572 fps | 99.6% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 48,443 psi | 88% | 2625 fps | 97.4% |
| Vihtavuori N530 | <<locked>> | 86% | 48,921 psi | 89% | 2572 fps | 99.5% |
| Vihtavuori N540 | <<locked>> | 90% | 47,181 psi | 86% | 2552 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 47,442 psi | 86% | 2628 fps | 97% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 49,676 psi | 90% | 2615 fps | 99.2% |
| Winchester 748 | <<locked>> | 86% | 48,037 psi | 87% | 2618 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 88% | 47,036 psi | 85% | 2592 fps | 98.9% |
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 2015 | <<locked>> | 80% | 41,785 psi | 76% | 2411 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 45,324 psi | 82% | 2507 fps | 99.9% |
| Accurate 2495 | <<locked>> | 80% | 34,330 psi | 62% | 2326 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 40,553 psi | 74% | 2461 fps | 99.4% |
| Accurate 4064 | <<locked>> | 80% | 32,460 psi | 59% | 2306 fps | 98.7% |
| Accurate 4350 | <<locked>> | 96% | 39,740 psi | 72% | 2516 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 38,392 psi | 70% | 2411 fps | 96.4% |
| ADI AR 2208 | <<locked>> | 84% | 36,883 psi | 67% | 2365 fps | 95.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 40,422 psi | 73% | 2431 fps | 98.2% |
| Alliant AR-Comp | <<locked>> | 80% | 39,262 psi | 71% | 2434 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 46,760 psi | 85% | 2615 fps | 98.9% |
| Alliant Power Pro 2000-MR | 45.7 gr | 84% | 39,392 psi | 71% | 2523 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 31,662 psi | 57% | 2287 fps | 95.2% |
| Alliant Reloder-15 | <<locked>> | 82% | 36,535 psi | 66% | 2395 fps | 95.2% |
| Alliant Reloder-16 | <<locked>> | 96% | 40,727 psi | 74% | 2530 fps | 95.6% |
| Alliant Reloder-17 | 47.1 gr | 88% | 35,491 psi | 64% | 2444 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 39,827 psi | 72% | 2461 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 30,937 psi | 56% | 2280 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 42,293 psi | 77% | 2425 fps | 98.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 38,334 psi | 70% | 2438 fps | 98.3% |
| Hodgdon CFE223 | <<locked>> | 80% | 42,264 psi | 77% | 2562 fps | 96.9% |
| Hodgdon H322 | <<locked>> | 80% | 45,890 psi | 83% | 2530 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 41,713 psi | 76% | 2490 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 38,696 psi | 70% | 2425 fps | 97.1% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 34,737 psi | 63% | 2375 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 34,548 psi | 63% | 2385 fps | 96.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,846 psi | 47% | 1434 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 37,101 psi | 67% | 2379 fps | 96.6% |
| IMR 3031 | <<locked>> | 80% | 37,550 psi | 68% | 2431 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 36,550 psi | 66% | 2352 fps | 95.3% |
| IMR 4831 | <<locked>> | 96% | 38,479 psi | 70% | 2474 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 35,128 psi | 64% | 2375 fps | 95.4% |
| IMR 8208 XBR | <<locked>> | 80% | 40,422 psi | 73% | 2431 fps | 98.2% |
| Lovex D073.5 | <<locked>> | 80% | 44,976 psi | 82% | 2507 fps | 99.5% |
| Lovex D073.6 | <<locked>> | 80% | 36,651 psi | 67% | 2395 fps | 98.8% |
| Lovex S060 | <<locked>> | 80% | 39,175 psi | 71% | 2365 fps | 96.7% |
| Lovex S062 | <<locked>> | 80% | 34,040 psi | 62% | 2310 fps | 96.6% |
| Lovex S065 | <<locked>> | 96% | 45,469 psi | 83% | 2530 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 37,666 psi | 68% | 2375 fps | 97.6% |
| Norma 202 | <<locked>> | 80% | 37,637 psi | 68% | 2388 fps | 99.4% |
| Norma 203B | <<locked>> | 82% | 35,926 psi | 65% | 2385 fps | 95.7% |
| Norma URP | <<locked>> | 96% | 40,422 psi | 73% | 2520 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 82% | 35,288 psi | 64% | 2388 fps | 95% |
| Ramshot TAC | <<locked>> | 84% | 45,919 psi | 83% | 2530 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 39,363 psi | 71% | 2444 fps | 96.6% |
| Ramshot X-Terminator | <<locked>> | 80% | 43,584 psi | 79% | 2470 fps | 97.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,904 psi | 47% | 1467 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 45,353 psi | 82% | 2516 fps | 99.7% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 37,811 psi | 69% | 2484 fps | 95.6% |
| ReloadSwiss RS 60 | 42.9 gr | 80% | 29,370 psi | 53% | 2290 fps | 95.5% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 42,801 psi | 78% | 2592 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 41,307 psi | 75% | 2425 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 80% | 35,795 psi | 65% | 2329 fps | 97% |
| Rottweil R 903 | <<locked>> | 84% | 33,170 psi | 60% | 2329 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 96% | 45,469 psi | 83% | 2530 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 36,651 psi | 67% | 2395 fps | 98.8% |
| Shooters World Precision | <<locked>> | 80% | 34,040 psi | 62% | 2310 fps | 96.6% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 36,956 psi | 67% | 2431 fps | 95.8% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 43,642 psi | 79% | 2497 fps | 95.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 36,883 psi | 67% | 2382 fps | 95.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,175 psi | 71% | 2346 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,140 psi | 58% | 2218 fps | 99% |
| Somchem S321 | <<locked>> | 80% | 43,250 psi | 78% | 2503 fps | 98.9% |
| Somchem S335 | <<locked>> | 80% | 38,798 psi | 70% | 2349 fps | 99.8% |
| Somchem S341 | <<locked>> | 80% | 37,927 psi | 69% | 2395 fps | 96.1% |
| Somchem S355 | <<locked>> | 84% | 34,447 psi | 63% | 2343 fps | 95.7% |
| Somchem S365 | <<locked>> | 92% | 31,676 psi | 57% | 2362 fps | 95.9% |
| Vihtavuori N130 | <<locked>> | 80% | 44,396 psi | 81% | 2418 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 39,276 psi | 71% | 2349 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 34,563 psi | 63% | 2323 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 35,534 psi | 64% | 2329 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 80% | 28,645 psi | 52% | 2185 fps | 95% |
| Vihtavuori N160 | <<locked>> | 94% | 39,900 psi | 72% | 2470 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 40,190 psi | 73% | 2421 fps | 98.2% |
| Vihtavuori N540 | <<locked>> | 80% | 34,272 psi | 62% | 2316 fps | 98.6% |
| Vihtavuori N550 | <<locked>> | 96% | 41,626 psi | 76% | 2526 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 33,562 psi | 61% | 2306 fps | 95% |
| Winchester 748 | <<locked>> | 80% | 39,204 psi | 71% | 2461 fps | 98.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 36,013 psi | 65% | 2382 fps | 96.3% |
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 98 powders for 7.5 x 54 mm MAS loaded with the .308 | 170gr | Swift A-Frame. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,733 fps; across all powders the maximum-charge window runs from 1,604 fps to 2,733 fps. Accurate 4350 gives the best case fill at 100 %, and 98 of the 98 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 170.0 gr projectile in 0.308" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-23 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 60, Alliant Reloder-17 rank at the top here: for 7.5 x 54 mm MAS with the .308 | 170gr | Swift A-Frame they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Alliant Reloder-23, Bofors RP7 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.