Load Specifications
Load data in caliber 7.5 x 54 mm MAS with .308 | 167gr | TWENTY-NINE SILENTIO bullet and 76 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, Hodgdon LEVERevolution and ReloadSwiss RS 52.
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% | 47,500 psi | 86% | 2484 fps | 100% |
| Accurate 2460 | <<locked>> | 86% | 48,820 psi | 89% | 2539 fps | 99.9% |
| Accurate 2495 | <<locked>> | 96% | 49,647 psi | 90% | 2572 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 49,284 psi | 89% | 2585 fps | 99.8% |
| Accurate 4064 | <<locked>> | 98% | 49,269 psi | 89% | 2602 fps | 100% |
| Accurate LT-30 | <<locked>> | 82% | 48,385 psi | 88% | 2438 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 48,820 psi | 89% | 2457 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 92% | 49,153 psi | 89% | 2585 fps | 97.9% |
| ADI AR 2208 | <<locked>> | 96% | 47,282 psi | 86% | 2533 fps | 96.8% |
| ADI AR 2219 | <<locked>> | 82% | 47,500 psi | 86% | 2536 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 48,834 psi | 89% | 2552 fps | 98.8% |
| Alliant AR-Comp | <<locked>> | 90% | 47,500 psi | 86% | 2552 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 49,806 psi | 90% | 2644 fps | 98.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 48,240 psi | 88% | 2661 fps | 96.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 48,588 psi | 88% | 2595 fps | 98.6% |
| Alliant Reloder-10x | <<locked>> | 84% | 47,529 psi | 86% | 2493 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 46,601 psi | 85% | 2562 fps | 96.9% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 45,905 psi | 83% | 2628 fps | 97.6% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 46,963 psi | 85% | 2434 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 48,472 psi | 88% | 2589 fps | 96.6% |
| Bofors RP3 | <<locked>> | 98% | 48,631 psi | 88% | 2608 fps | 98.7% |
| Hodgdon Benchmark | <<locked>> | 88% | 48,501 psi | 88% | 2503 fps | 99.1% |
| Hodgdon BL-C2 | <<locked>> | 90% | 46,833 psi | 85% | 2572 fps | 99% |
| Hodgdon CFE223 | <<locked>> | 88% | 48,283 psi | 88% | 2644 fps | 97.3% |
| Hodgdon H322 | <<locked>> | 86% | 49,240 psi | 89% | 2562 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 47,007 psi | 85% | 2536 fps | 99.8% |
| Hodgdon H4895 | <<locked>> | 92% | 49,501 psi | 90% | 2598 fps | 98.5% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 47,776 psi | 87% | 2618 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,011 psi | 62% | 1562 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 48,051 psi | 87% | 2556 fps | 98.1% |
| IMR 3031 | <<locked>> | 92% | 48,066 psi | 87% | 2598 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 49,734 psi | 90% | 2566 fps | 97.5% |
| IMR 4198 | <<locked>> | 84% | 48,428 psi | 88% | 2464 fps | 100% |
| IMR 4895 | <<locked>> | 94% | 47,659 psi | 86% | 2595 fps | 97.8% |
| IMR 8208 XBR | <<locked>> | 90% | 48,834 psi | 89% | 2552 fps | 98.8% |
| Lovex D073.5 | <<locked>> | 86% | 48,341 psi | 88% | 2539 fps | 99.3% |
| Lovex D073.6 | <<locked>> | 92% | 47,413 psi | 86% | 2569 fps | 99.7% |
| Lovex S060 | <<locked>> | 90% | 47,369 psi | 86% | 2484 fps | 97.5% |
| Lovex S062 | <<locked>> | 96% | 48,907 psi | 89% | 2569 fps | 98.9% |
| Norma 201 | <<locked>> | 92% | 48,080 psi | 87% | 2539 fps | 98.8% |
| Norma 202 | <<locked>> | 92% | 48,095 psi | 87% | 2552 fps | 99.9% |
| Norma 203B | <<locked>> | 96% | 48,994 psi | 89% | 2605 fps | 98% |
| Ramshot Big Game | <<locked>> | 96% | 48,950 psi | 89% | 2621 fps | 97.7% |
| Ramshot Wild Boar | <<locked>> | 90% | 47,921 psi | 87% | 2572 fps | 97.6% |
| Ramshot X-Terminator | <<locked>> | 86% | 47,108 psi | 85% | 2503 fps | 97.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,200 psi | 62% | 1601 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 48,878 psi | 89% | 2549 fps | 99.6% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 48,776 psi | 89% | 2664 fps | 97.4% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 49,139 psi | 89% | 2697 fps | 99.8% |
| Rottweil R 901 | <<locked>> | 90% | 49,545 psi | 90% | 2543 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 94% | 48,399 psi | 88% | 2536 fps | 98.8% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 48,182 psi | 87% | 2592 fps | 98.4% |
| Shooters World Match Rifle | <<locked>> | 92% | 47,413 psi | 86% | 2569 fps | 99.7% |
| Shooters World Precision | <<locked>> | 96% | 48,907 psi | 89% | 2569 fps | 98.9% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 48,762 psi | 88% | 2513 fps | 98.5% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 47,790 psi | 87% | 2543 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 47,137 psi | 86% | 2598 fps | 97.4% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 48,385 psi | 88% | 2510 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 47,659 psi | 86% | 2556 fps | 97.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 47,776 psi | 87% | 2464 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 49,559 psi | 90% | 2500 fps | 100% |
| Somchem S321 | <<locked>> | 88% | 49,806 psi | 90% | 2585 fps | 99.2% |
| Somchem S335 | <<locked>> | 92% | 49,501 psi | 90% | 2507 fps | 100% |
| Somchem S341 | <<locked>> | 92% | 49,559 psi | 90% | 2575 fps | 97.8% |
| Somchem S355ᴾ | <<locked>> | 100% | 49,298 psi | 89% | 2595 fps | 98.4% |
| Somchem S365ᴾ | <<locked>> | 100% | 35,215 psi | 64% | 2418 fps | 95.9% |
| Vihtavuori N130 | <<locked>> | 86% | 47,950 psi | 87% | 2451 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 47,543 psi | 86% | 2461 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 46,891 psi | 85% | 2523 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 48,660 psi | 88% | 2539 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 47,529 psi | 86% | 2539 fps | 99% |
| Vihtavuori N530 | <<locked>> | 90% | 49,371 psi | 90% | 2552 fps | 98.9% |
| Vihtavuori N540 | <<locked>> | 94% | 46,963 psi | 85% | 2530 fps | 99.8% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 43,700 psi | 79% | 2477 fps | 96.9% |
| Winchester 748 | <<locked>> | 90% | 47,558 psi | 86% | 2589 fps | 99.3% |
| Winchester StaBALL Match | <<locked>> | 92% | 46,775 psi | 85% | 2562 fps | 98% |
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% | 37,043 psi | 67% | 2313 fps | 99.9% |
| Accurate 2460 | <<locked>> | 80% | 39,871 psi | 72% | 2392 fps | 99% |
| Accurate 2495 | <<locked>> | 80% | 29,457 psi | 53% | 2211 fps | 99.1% |
| Accurate 2520 | <<locked>> | 80% | 35,041 psi | 64% | 2336 fps | 97.6% |
| Accurate 4064 | <<locked>> | 80% | 27,876 psi | 51% | 2185 fps | 96.4% |
| Accurate LT-30 | <<locked>> | 80% | 45,498 psi | 83% | 2395 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 45,876 psi | 83% | 2408 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 84% | 38,493 psi | 70% | 2392 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 92% | 41,829 psi | 76% | 2438 fps | 95.4% |
| ADI AR 2219 | <<locked>> | 80% | 44,237 psi | 80% | 2484 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 80% | 35,636 psi | 65% | 2310 fps | 95.9% |
| Alliant AR-Comp | <<locked>> | 80% | 34,200 psi | 62% | 2333 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 40,727 psi | 74% | 2484 fps | 96.8% |
| Alliant Power Pro 2000-MR | 44.8 gr | 92% | 45,368 psi | 82% | 2608 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 35,375 psi | 64% | 2356 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 42,105 psi | 76% | 2408 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 41,118 psi | 75% | 2464 fps | 95.5% |
| Alliant Reloder-17 | <<locked>> | 94% | 37,753 psi | 69% | 2461 fps | 95% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 44,005 psi | 80% | 2388 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 42,699 psi | 77% | 2487 fps | 95.1% |
| Bofors RP3 | <<locked>> | 88% | 34,635 psi | 63% | 2352 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 38,072 psi | 69% | 2320 fps | 97.2% |
| Hodgdon BL-C2 | <<locked>> | 80% | 33,286 psi | 60% | 2313 fps | 95.8% |
| Hodgdon CFE223 | <<locked>> | 84% | 42,090 psi | 76% | 2533 fps | 95.7% |
| Hodgdon H322 | <<locked>> | 80% | 40,567 psi | 74% | 2421 fps | 99.7% |
| Hodgdon H335 | <<locked>> | 80% | 40,973 psi | 74% | 2438 fps | 99.3% |
| Hodgdon H4895 | <<locked>> | 82% | 36,361 psi | 66% | 2356 fps | 95.3% |
| Hodgdon LEVERevolution | 40.1 gr | 84% | 34,505 psi | 63% | 2359 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,150 psi | 46% | 1394 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 37,202 psi | 68% | 2356 fps | 95.5% |
| IMR 3031 | <<locked>> | 80% | 32,489 psi | 59% | 2313 fps | 99.1% |
| IMR 4064 | <<locked>> | 90% | 41,249 psi | 75% | 2421 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 43,192 psi | 78% | 2385 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 37,086 psi | 67% | 2398 fps | 95% |
| IMR 8208 XBR | <<locked>> | 80% | 35,636 psi | 65% | 2310 fps | 95.9% |
| Lovex D073.5 | <<locked>> | 80% | 39,508 psi | 72% | 2388 fps | 98% |
| Lovex D073.6 | <<locked>> | 80% | 31,734 psi | 58% | 2274 fps | 96.6% |
| Lovex S060 | <<locked>> | 84% | 39,508 psi | 72% | 2343 fps | 95.6% |
| Lovex S062 | <<locked>> | 84% | 33,663 psi | 61% | 2283 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 33,330 psi | 60% | 2260 fps | 95.2% |
| Norma 202 | <<locked>> | 80% | 33,170 psi | 60% | 2277 fps | 97.7% |
| Norma 203B | <<locked>> | 88% | 37,942 psi | 69% | 2405 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 90% | 40,277 psi | 73% | 2467 fps | 95.5% |
| Ramshot Wild Boar | <<locked>> | 84% | 39,334 psi | 71% | 2418 fps | 95.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 38,856 psi | 71% | 2352 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,440 psi | 46% | 1430 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 40,306 psi | 73% | 2402 fps | 98.5% |
| ReloadSwiss RS 52 | 41.5 gr | 88% | 39,958 psi | 73% | 2503 fps | 95% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 33,431 psi | 61% | 2369 fps | 96% |
| Rottweil R 901 | <<locked>> | 80% | 36,724 psi | 67% | 2316 fps | 98.3% |
| Rottweil R 902 | <<locked>> | 82% | 33,562 psi | 61% | 2257 fps | 95.2% |
| Rottweil R 903 | <<locked>> | 90% | 34,824 psi | 63% | 2349 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 31,734 psi | 58% | 2274 fps | 96.6% |
| Shooters World Precision | <<locked>> | 84% | 33,663 psi | 61% | 2283 fps | 95.3% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 42,424 psi | 77% | 2408 fps | 97.3% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 44,657 psi | 81% | 2490 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 39,044 psi | 71% | 2448 fps | 95.2% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 42,801 psi | 78% | 2421 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 39,450 psi | 72% | 2411 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 35,172 psi | 64% | 2244 fps | 98.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,572 psi | 52% | 2116 fps | 97.2% |
| Somchem S321 | <<locked>> | 80% | 37,927 psi | 69% | 2379 fps | 96.9% |
| Somchem S335 | <<locked>> | 80% | 34,577 psi | 63% | 2247 fps | 98.7% |
| Somchem S341 | <<locked>> | 86% | 40,582 psi | 74% | 2425 fps | 95.8% |
| Somchem S355 | <<locked>> | 90% | 36,056 psi | 65% | 2359 fps | 95.1% |
| Somchem S365 | <<locked>> | 98% | 33,127 psi | 60% | 2365 fps | 95% |
| Vihtavuori N130 | <<locked>> | 80% | 39,987 psi | 73% | 2326 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 35,114 psi | 64% | 2254 fps | 99.7% |
| Vihtavuori N135 | <<locked>> | 80% | 30,153 psi | 55% | 2218 fps | 99.2% |
| Vihtavuori N140 | <<locked>> | 80% | 31,067 psi | 56% | 2215 fps | 97.4% |
| Vihtavuori N150 | <<locked>> | 88% | 32,358 psi | 59% | 2260 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 35,389 psi | 64% | 2303 fps | 95.9% |
| Vihtavuori N540 | <<locked>> | 80% | 29,878 psi | 54% | 2198 fps | 96.4% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 38,247 psi | 69% | 2372 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 34,301 psi | 62% | 2339 fps | 96.5% |
| Winchester StaBALL Match | <<locked>> | 84% | 36,013 psi | 65% | 2362 fps | 95.2% |
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 76 powders for 7.5 x 54 mm MAS loaded with the .308 | 167gr | TWENTY-NINE SILENTIO. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,697 fps; across all powders the maximum-charge window runs from 1,562 fps to 2,697 fps. Alliant Reloder-17 gives the best case fill at 100 %, and 76 of the 76 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 167.0 gr projectile in 0.308" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-17, Hodgdon TrailBoss, ReloadSwiss RS 14 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, Hodgdon LEVERevolution, ReloadSwiss RS 52 rank at the top here: for 7.5 x 54 mm MAS with the .308 | 167gr | TWENTY-NINE SILENTIO 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.