Load Specifications
Load data in caliber 7.5 x 54 mm MAS with .308 | 165gr | Swift Scirocco bullet and 75 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon CFE223, Hodgdon LEVERevolution and Norma 203B.
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>> | 88% | 47,007 psi | 85% | 2497 fps | 100% |
| Accurate 2460 | <<locked>> | 86% | 48,283 psi | 88% | 2549 fps | 99.8% |
| Accurate 2495 | <<locked>> | 96% | 49,400 psi | 90% | 2585 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 49,110 psi | 89% | 2598 fps | 99.7% |
| Accurate 4064 | <<locked>> | 98% | 49,037 psi | 89% | 2615 fps | 100% |
| Accurate LT-30 | <<locked>> | 82% | 48,051 psi | 87% | 2451 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 48,457 psi | 88% | 2467 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 92% | 48,979 psi | 89% | 2598 fps | 97.8% |
| ADI AR 2208 | <<locked>> | 98% | 49,763 psi | 90% | 2589 fps | 97.2% |
| ADI AR 2219 | <<locked>> | 82% | 47,065 psi | 85% | 2546 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 48,704 psi | 88% | 2566 fps | 98.7% |
| Alliant AR-Comp | <<locked>> | 90% | 47,007 psi | 85% | 2562 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 49,313 psi | 89% | 2654 fps | 98.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 48,008 psi | 87% | 2671 fps | 96.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 48,356 psi | 88% | 2608 fps | 98.5% |
| Alliant Reloder-10x | <<locked>> | 84% | 47,137 psi | 86% | 2503 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 49,313 psi | 89% | 2625 fps | 97.4% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 45,716 psi | 83% | 2638 fps | 97.4% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 49,632 psi | 90% | 2487 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 48,225 psi | 88% | 2602 fps | 96.5% |
| Bofors RP3 | <<locked>> | 98% | 48,022 psi | 87% | 2615 fps | 98.5% |
| Hodgdon Benchmark | <<locked>> | 88% | 48,051 psi | 87% | 2513 fps | 99% |
| Hodgdon BL-C2 | <<locked>> | 92% | 49,661 psi | 90% | 2631 fps | 99.3% |
| Hodgdon CFE223 | <<locked>> | 88% | 48,095 psi | 87% | 2657 fps | 97.1% |
| Hodgdon H322 | <<locked>> | 86% | 49,095 psi | 89% | 2579 fps | 100% |
| Hodgdon H335 | <<locked>> | 86% | 49,864 psi | 90% | 2598 fps | 99.9% |
| Hodgdon H4895 | <<locked>> | 92% | 49,371 psi | 90% | 2612 fps | 98.4% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 47,253 psi | 86% | 2625 fps | 98.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,098 psi | 62% | 1575 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 47,572 psi | 86% | 2562 fps | 97.9% |
| IMR 3031 | <<locked>> | 92% | 47,863 psi | 87% | 2612 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 49,255 psi | 89% | 2575 fps | 97.3% |
| IMR 4198 | <<locked>> | 84% | 48,066 psi | 87% | 2477 fps | 100% |
| IMR 4895 | <<locked>> | 94% | 47,471 psi | 86% | 2608 fps | 97.6% |
| IMR 8208 XBR | <<locked>> | 90% | 48,704 psi | 88% | 2566 fps | 98.7% |
| Lovex D073.5 | <<locked>> | 86% | 48,124 psi | 87% | 2552 fps | 99.3% |
| Lovex D073.6 | <<locked>> | 92% | 47,152 psi | 86% | 2582 fps | 99.6% |
| Lovex S060 | <<locked>> | 92% | 49,850 psi | 90% | 2539 fps | 97.9% |
| Lovex S062 | <<locked>> | 96% | 48,399 psi | 88% | 2575 fps | 98.8% |
| Norma 201 | <<locked>> | 92% | 47,906 psi | 87% | 2552 fps | 98.7% |
| Norma 202 | <<locked>> | 92% | 47,906 psi | 87% | 2566 fps | 99.9% |
| Norma 203B | <<locked>> | 96% | 48,457 psi | 88% | 2615 fps | 97.8% |
| Ramshot Big Game | <<locked>> | 96% | 48,718 psi | 88% | 2635 fps | 97.5% |
| Ramshot Wild Boar | <<locked>> | 90% | 47,747 psi | 87% | 2585 fps | 97.5% |
| Ramshot X-Terminator | <<locked>> | 86% | 46,934 psi | 85% | 2516 fps | 97.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,997 psi | 62% | 1608 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 48,457 psi | 88% | 2559 fps | 99.5% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 48,515 psi | 88% | 2677 fps | 97.2% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 48,892 psi | 89% | 2710 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 90% | 49,110 psi | 89% | 2552 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 94% | 48,298 psi | 88% | 2552 fps | 98.7% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 47,964 psi | 87% | 2605 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 92% | 47,152 psi | 86% | 2582 fps | 99.6% |
| Shooters World Precision | <<locked>> | 96% | 48,399 psi | 88% | 2575 fps | 98.8% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 48,327 psi | 88% | 2523 fps | 98.4% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 47,703 psi | 87% | 2556 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 46,920 psi | 85% | 2612 fps | 97.2% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 47,993 psi | 87% | 2520 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 47,471 psi | 86% | 2569 fps | 97.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 47,340 psi | 86% | 2474 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 49,443 psi | 90% | 2513 fps | 100% |
| Somchem S321 | <<locked>> | 88% | 49,298 psi | 89% | 2595 fps | 99% |
| Somchem S335 | <<locked>> | 92% | 49,327 psi | 90% | 2520 fps | 100% |
| Somchem S341 | <<locked>> | 92% | 49,356 psi | 90% | 2589 fps | 97.7% |
| Somchem S355ᴾ | <<locked>> | 100% | 49,052 psi | 89% | 2608 fps | 98.2% |
| Vihtavuori N130 | <<locked>> | 86% | 47,529 psi | 86% | 2464 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 47,123 psi | 86% | 2474 fps | 100% |
| Vihtavuori N135 | <<locked>> | 96% | 49,443 psi | 90% | 2575 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 48,167 psi | 87% | 2546 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 47,326 psi | 86% | 2552 fps | 98.9% |
| Vihtavuori N530 | <<locked>> | 90% | 48,863 psi | 89% | 2562 fps | 98.8% |
| Vihtavuori N540 | <<locked>> | 96% | 49,763 psi | 90% | 2589 fps | 99.9% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 43,178 psi | 78% | 2480 fps | 96.7% |
| Winchester 748 | <<locked>> | 90% | 47,384 psi | 86% | 2602 fps | 99.2% |
| Winchester StaBALL Match | <<locked>> | 94% | 49,617 psi | 90% | 2621 fps | 98.4% |
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% | 36,695 psi | 67% | 2323 fps | 99.9% |
| Accurate 2460 | <<locked>> | 80% | 39,465 psi | 72% | 2402 fps | 98.8% |
| Accurate 2495 | <<locked>> | 80% | 29,138 psi | 53% | 2221 fps | 99% |
| Accurate 2520 | <<locked>> | 80% | 34,940 psi | 63% | 2349 fps | 97.5% |
| Accurate 4064 | <<locked>> | 80% | 27,586 psi | 50% | 2195 fps | 96.1% |
| Accurate LT-30 | <<locked>> | 80% | 45,150 psi | 82% | 2405 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 45,527 psi | 83% | 2418 fps | 99.4% |
| ADI AR 2206H | <<locked>> | 84% | 38,101 psi | 69% | 2398 fps | 95% |
| ADI AR 2208 | <<locked>> | 92% | 41,408 psi | 75% | 2444 fps | 95.1% |
| ADI AR 2219 | <<locked>> | 80% | 44,121 psi | 80% | 2500 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 80% | 35,592 psi | 65% | 2323 fps | 95.7% |
| Alliant AR-Comp | <<locked>> | 80% | 33,852 psi | 61% | 2343 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 40,640 psi | 74% | 2497 fps | 96.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 44,904 psi | 81% | 2612 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 35,244 psi | 64% | 2369 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 41,771 psi | 76% | 2418 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 41,017 psi | 74% | 2480 fps | 95.3% |
| Alliant Reloder-17 | <<locked>> | 96% | 40,190 psi | 73% | 2530 fps | 95.8% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 43,888 psi | 80% | 2402 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 45,165 psi | 82% | 2549 fps | 95.7% |
| Bofors RP3 | <<locked>> | 88% | 34,490 psi | 63% | 2365 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 37,753 psi | 69% | 2326 fps | 97% |
| Hodgdon BL-C2 | <<locked>> | 80% | 33,185 psi | 60% | 2326 fps | 95.6% |
| Hodgdon CFE223 | 42 gr | 84% | 41,974 psi | 76% | 2546 fps | 95.5% |
| Hodgdon H322 | <<locked>> | 80% | 40,205 psi | 73% | 2431 fps | 99.6% |
| Hodgdon H335 | <<locked>> | 80% | 40,857 psi | 74% | 2451 fps | 99.2% |
| Hodgdon H4895 | <<locked>> | 82% | 35,998 psi | 65% | 2362 fps | 95% |
| Hodgdon LEVERevolution | 41.2 gr | 86% | 36,564 psi | 66% | 2421 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,266 psi | 46% | 1407 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 37,159 psi | 67% | 2369 fps | 95.3% |
| IMR 3031 | <<locked>> | 80% | 32,184 psi | 58% | 2323 fps | 98.9% |
| IMR 4064 | <<locked>> | 90% | 41,118 psi | 75% | 2434 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 42,844 psi | 78% | 2395 fps | 100% |
| IMR 4895 | <<locked>> | 88% | 39,378 psi | 71% | 2461 fps | 95.6% |
| IMR 8208 XBR | <<locked>> | 80% | 35,592 psi | 65% | 2323 fps | 95.7% |
| Lovex D073.5 | <<locked>> | 80% | 39,392 psi | 71% | 2402 fps | 97.8% |
| Lovex D073.6 | <<locked>> | 80% | 31,415 psi | 57% | 2280 fps | 96.3% |
| Lovex S060 | <<locked>> | 84% | 39,450 psi | 72% | 2356 fps | 95.5% |
| Lovex S062 | <<locked>> | 84% | 33,576 psi | 61% | 2297 fps | 95.2% |
| Norma 201 | <<locked>> | 82% | 35,143 psi | 64% | 2316 fps | 95.7% |
| Norma 202 | <<locked>> | 80% | 32,837 psi | 60% | 2283 fps | 97.5% |
| Norma 203B | 40.4 gr | 88% | 37,797 psi | 69% | 2421 fps | 95% |
| Ramshot Big Game | <<locked>> | 90% | 40,103 psi | 73% | 2477 fps | 95.3% |
| Ramshot Wild Boar | <<locked>> | 84% | 39,233 psi | 71% | 2431 fps | 95.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 38,754 psi | 70% | 2365 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,266 psi | 46% | 1437 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 39,914 psi | 72% | 2411 fps | 98.3% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 42,438 psi | 77% | 2569 fps | 95.7% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 33,098 psi | 60% | 2375 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 36,419 psi | 66% | 2323 fps | 98.2% |
| Rottweil R 902 | <<locked>> | 82% | 33,504 psi | 61% | 2270 fps | 95% |
| Rottweil R 903 | <<locked>> | 92% | 36,753 psi | 67% | 2405 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 31,415 psi | 57% | 2280 fps | 96.3% |
| Shooters World Precision | <<locked>> | 84% | 33,576 psi | 61% | 2297 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 42,308 psi | 77% | 2421 fps | 97.2% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 44,527 psi | 81% | 2507 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 38,914 psi | 71% | 2461 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 42,467 psi | 77% | 2434 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 39,030 psi | 71% | 2418 fps | 95.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 34,911 psi | 63% | 2251 fps | 98% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,311 psi | 51% | 2123 fps | 97% |
| Somchem S321 | <<locked>> | 80% | 37,811 psi | 69% | 2392 fps | 96.8% |
| Somchem S335 | <<locked>> | 80% | 34,272 psi | 62% | 2257 fps | 98.5% |
| Somchem S341 | <<locked>> | 86% | 40,176 psi | 73% | 2431 fps | 95.5% |
| Somchem S355 | <<locked>> | 92% | 38,261 psi | 69% | 2418 fps | 95.7% |
| Vihtavuori N130 | <<locked>> | 80% | 39,653 psi | 72% | 2339 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 34,809 psi | 63% | 2260 fps | 99.6% |
| Vihtavuori N135 | <<locked>> | 80% | 29,863 psi | 54% | 2228 fps | 99% |
| Vihtavuori N140 | <<locked>> | 80% | 31,009 psi | 56% | 2228 fps | 97.3% |
| Vihtavuori N150 | <<locked>> | 88% | 32,024 psi | 58% | 2264 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 35,331 psi | 64% | 2316 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 29,762 psi | 54% | 2211 fps | 96.2% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 38,116 psi | 69% | 2382 fps | 95% |
| Winchester 748 | <<locked>> | 80% | 33,968 psi | 62% | 2346 fps | 96.2% |
| Winchester StaBALL Match | <<locked>> | 86% | 38,159 psi | 69% | 2421 fps | 95.8% |
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 97 powders for 7.5 x 54 mm MAS loaded with the .308 | 165gr | Swift Scirocco. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,710 fps; across all powders the maximum-charge window runs from 1,575 fps to 2,710 fps. Accurate 4350 gives the best case fill at 100 %, and 97 of the 97 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 62–90 %, leaving at least 10 % headroom. The 165.0 gr projectile in 0.308" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, 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 CFE223, Hodgdon LEVERevolution, Norma 203B rank at the top here: for 7.5 x 54 mm MAS with the .308 | 165gr | Swift Scirocco they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Accurate 4350, Alliant Reloder-16 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.