Load Specifications
Load data in caliber 7.5 x 54 mm MAS with .31 | 200gr | Lapua D166 bullet and 85 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.
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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>> | 82% | 47,224 psi | 86% | 2270 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 47,688 psi | 87% | 2323 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 49,690 psi | 90% | 2379 fps | 100% |
| Accurate 4064 | <<locked>> | 90% | 47,616 psi | 86% | 2362 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 49,472 psi | 90% | 2461 fps | 98.9% |
| ADI AR 2206H | <<locked>> | 86% | 49,153 psi | 89% | 2388 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 90% | 46,978 psi | 85% | 2339 fps | 98.9% |
| ADI Benchmark 8208 | <<locked>> | 84% | 48,312 psi | 88% | 2346 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 84% | 48,182 psi | 87% | 2329 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 47,805 psi | 87% | 2470 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 49,371 psi | 90% | 2405 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 88% | 46,978 psi | 85% | 2375 fps | 99% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 48,776 psi | 89% | 2467 fps | 99% |
| Alliant Reloder-17 | <<locked>> | 96% | 49,211 psi | 89% | 2500 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 34,519 psi | 63% | 2234 fps | 97% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 48,414 psi | 88% | 2395 fps | 98.8% |
| Bofors RP3 | <<locked>> | 92% | 49,516 psi | 90% | 2415 fps | 99.9% |
| Hodgdon Benchmark | <<locked>> | 82% | 47,529 psi | 86% | 2297 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 46,833 psi | 85% | 2369 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 48,327 psi | 88% | 2448 fps | 99.2% |
| Hodgdon H380 | <<locked>> | 90% | 47,572 psi | 86% | 2375 fps | 98.1% |
| Hodgdon H414 | <<locked>> | 98% | 49,661 psi | 90% | 2461 fps | 96.6% |
| Hodgdon H4895 | <<locked>> | 86% | 49,588 psi | 90% | 2395 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 44,628 psi | 81% | 2359 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 48,080 psi | 87% | 2421 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,157 psi | 64% | 1453 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 47,529 psi | 86% | 2352 fps | 99.6% |
| IMR 3031 | <<locked>> | 86% | 48,965 psi | 89% | 2385 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 49,472 psi | 90% | 2369 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 88% | 49,821 psi | 90% | 2349 fps | 96.4% |
| IMR 4451 Enduron | <<locked>> | 94% | 49,153 psi | 89% | 2369 fps | 96.2% |
| IMR 4831ᴾ | <<locked>> | 100% | 47,152 psi | 86% | 2411 fps | 98.6% |
| IMR 4895 | <<locked>> | 88% | 48,138 psi | 87% | 2402 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 84% | 48,312 psi | 88% | 2346 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 86% | 48,008 psi | 87% | 2369 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 49,443 psi | 90% | 2329 fps | 99.5% |
| Lovex S062 | <<locked>> | 90% | 49,124 psi | 89% | 2369 fps | 99.9% |
| Lovex S065 | <<locked>> | 96% | 48,153 psi | 87% | 2362 fps | 97.5% |
| Lovex S070 | <<locked>> | 98% | 48,486 psi | 88% | 2388 fps | 96.4% |
| Norma 201 | <<locked>> | 86% | 48,095 psi | 87% | 2343 fps | 99.9% |
| Norma 202 | <<locked>> | 86% | 48,312 psi | 88% | 2346 fps | 100% |
| Norma 203B | <<locked>> | 90% | 49,400 psi | 90% | 2411 fps | 99.6% |
| Norma URPᴾ | <<locked>> | 100% | 49,197 psi | 89% | 2454 fps | 98.8% |
| Ramshot Big Game | <<locked>> | 90% | 49,052 psi | 89% | 2428 fps | 99.5% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 48,124 psi | 87% | 2444 fps | 97.1% |
| Ramshot TAC | <<locked>> | 84% | 48,327 psi | 88% | 2356 fps | 97.7% |
| Ramshot Wild Boar | <<locked>> | 84% | 47,543 psi | 86% | 2372 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 82% | 49,226 psi | 89% | 2349 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,534 psi | 64% | 1490 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 48,182 psi | 87% | 2362 fps | 96.7% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 49,850 psi | 90% | 2477 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 49,124 psi | 89% | 2503 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 49,124 psi | 89% | 2484 fps | 98.7% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 49,821 psi | 90% | 2500 fps | 98.3% |
| Rottweil R 901 | <<locked>> | 84% | 49,211 psi | 89% | 2329 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 48,399 psi | 88% | 2339 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 94% | 49,400 psi | 90% | 2408 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 96% | 48,153 psi | 87% | 2362 fps | 97.5% |
| Shooters World Match Rifle | <<locked>> | 86% | 48,008 psi | 87% | 2369 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 49,124 psi | 89% | 2369 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 98% | 48,486 psi | 88% | 2388 fps | 96.4% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 47,616 psi | 86% | 2411 fps | 99.4% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 49,617 psi | 90% | 2379 fps | 98.4% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 47,442 psi | 86% | 2362 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 49,705 psi | 90% | 2293 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 49,429 psi | 90% | 2293 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 48,167 psi | 87% | 2320 fps | 96% |
| Somchem S321 | <<locked>> | 82% | 48,921 psi | 89% | 2372 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 49,182 psi | 89% | 2297 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 49,400 psi | 90% | 2379 fps | 99.5% |
| Somchem S355 | <<locked>> | 92% | 47,108 psi | 85% | 2365 fps | 99.6% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,685 psi | 79% | 2408 fps | 99.9% |
| Vihtavuori N133 | <<locked>> | 86% | 49,821 psi | 90% | 2283 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 47,616 psi | 86% | 2316 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 48,820 psi | 89% | 2333 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 48,182 psi | 87% | 2349 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 48,312 psi | 88% | 2405 fps | 98.6% |
| Vihtavuori N530 | <<locked>> | 84% | 48,414 psi | 88% | 2343 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 88% | 46,847 psi | 85% | 2326 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 47,659 psi | 86% | 2415 fps | 98.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 36,840 psi | 67% | 2300 fps | 97% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 49,226 psi | 89% | 2395 fps | 99.8% |
| Winchester 748 | <<locked>> | 84% | 47,906 psi | 87% | 2385 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 49,661 psi | 90% | 2461 fps | 96.6% |
| Winchester StaBALL Match | <<locked>> | 86% | 46,934 psi | 85% | 2369 fps | 99.6% |
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% | 44,411 psi | 81% | 2231 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 36,854 psi | 67% | 2162 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 43,381 psi | 79% | 2290 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 34,838 psi | 63% | 2152 fps | 99.8% |
| Accurate 4350 | <<locked>> | 90% | 35,201 psi | 64% | 2221 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 40,625 psi | 74% | 2247 fps | 98.3% |
| ADI AR 2208 | <<locked>> | 80% | 34,664 psi | 63% | 2119 fps | 96% |
| ADI Benchmark 8208 | <<locked>> | 80% | 42,656 psi | 77% | 2257 fps | 99.4% |
| Alliant AR-Comp | <<locked>> | 80% | 42,337 psi | 77% | 2254 fps | 100% |
| Alliant Power Pro 2000-MR | 40.4 gr | 80% | 36,666 psi | 67% | 2264 fps | 96.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,910 psi | 62% | 2139 fps | 97.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,492 psi | 66% | 2192 fps | 96.8% |
| Alliant Reloder-16 | <<locked>> | 90% | 35,911 psi | 65% | 2228 fps | 95.8% |
| Alliant Reloder-17 | 40.8 gr | 82% | 31,270 psi | 57% | 2152 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 96% | 30,589 psi | 56% | 2139 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,523 psi | 72% | 2251 fps | 97.1% |
| Bofors RP3 | <<locked>> | 80% | 33,185 psi | 60% | 2136 fps | 97.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 44,556 psi | 81% | 2251 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 41,017 psi | 74% | 2277 fps | 99.6% |
| Hodgdon CFE223 | <<locked>> | 80% | 44,860 psi | 81% | 2392 fps | 98.8% |
| Hodgdon H380 | <<locked>> | 82% | 36,622 psi | 66% | 2188 fps | 95.4% |
| Hodgdon H414 | <<locked>> | 94% | 43,439 psi | 79% | 2359 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 40,973 psi | 74% | 2260 fps | 98.8% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 30,806 psi | 56% | 2093 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,782 psi | 67% | 2231 fps | 98.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,150 psi | 47% | 1296 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,436 psi | 72% | 2218 fps | 98.5% |
| IMR 3031 | <<locked>> | 80% | 40,147 psi | 73% | 2257 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,361 psi | 66% | 2149 fps | 96.8% |
| IMR 4166 Enduron | <<locked>> | 84% | 44,048 psi | 80% | 2257 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 92% | 46,383 psi | 84% | 2326 fps | 95.5% |
| IMR 4831 | <<locked>> | 90% | 34,214 psi | 62% | 2185 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 37,347 psi | 68% | 2218 fps | 97.7% |
| IMR 8208 XBR | <<locked>> | 80% | 42,656 psi | 77% | 2257 fps | 99.4% |
| Lovex D073.6 | <<locked>> | 80% | 39,349 psi | 71% | 2234 fps | 99.8% |
| Lovex S060 | <<locked>> | 80% | 41,220 psi | 75% | 2198 fps | 98.4% |
| Lovex S062 | <<locked>> | 80% | 36,158 psi | 66% | 2156 fps | 98.5% |
| Lovex S065 | <<locked>> | 90% | 40,132 psi | 73% | 2228 fps | 95.5% |
| Lovex S070 | <<locked>> | 94% | 43,062 psi | 78% | 2300 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 39,929 psi | 72% | 2211 fps | 99.1% |
| Norma 202 | <<locked>> | 80% | 40,045 psi | 73% | 2221 fps | 100% |
| Norma 203B | <<locked>> | 80% | 35,882 psi | 65% | 2182 fps | 97.3% |
| Norma URP | <<locked>> | 90% | 35,824 psi | 65% | 2221 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 35,273 psi | 64% | 2192 fps | 96.8% |
| Ramshot Hunter | <<locked>> | 96% | 42,540 psi | 77% | 2352 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 42,540 psi | 77% | 2260 fps | 96.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,727 psi | 76% | 2277 fps | 98.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,180 psi | 84% | 2300 fps | 99.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,310 psi | 48% | 1325 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 42,308 psi | 77% | 2267 fps | 95.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 37,898 psi | 69% | 2277 fps | 97.3% |
| ReloadSwiss RS 60 | 39.8 gr | 80% | 31,198 psi | 57% | 2159 fps | 98.3% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 35,099 psi | 64% | 2234 fps | 95.1% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 38,058 psi | 69% | 2287 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 43,729 psi | 79% | 2247 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 38,101 psi | 69% | 2172 fps | 98.8% |
| Rottweil R 903 | <<locked>> | 80% | 31,314 psi | 57% | 2090 fps | 96.5% |
| Shooters World Long Rifle | <<locked>> | 90% | 40,132 psi | 73% | 2228 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,349 psi | 71% | 2234 fps | 99.8% |
| Shooters World Precision | <<locked>> | 80% | 36,158 psi | 66% | 2156 fps | 98.5% |
| Shooters World SW4350 | <<locked>> | 94% | 43,062 psi | 78% | 2300 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 32,460 psi | 59% | 2136 fps | 95.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 40,669 psi | 74% | 2234 fps | 96.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,291 psi | 71% | 2224 fps | 98% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,597 psi | 75% | 2175 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,360 psi | 62% | 2064 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 44,947 psi | 82% | 2270 fps | 95.3% |
| Somchem S321 | <<locked>> | 80% | 45,818 psi | 83% | 2326 fps | 99.8% |
| Somchem S335 | <<locked>> | 80% | 40,973 psi | 74% | 2178 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 40,277 psi | 73% | 2234 fps | 98.2% |
| Somchem S355 | <<locked>> | 80% | 32,401 psi | 59% | 2100 fps | 96.6% |
| Somchem S365 | <<locked>> | 84% | 26,484 psi | 48% | 2037 fps | 95.3% |
| Vihtavuori N133 | <<locked>> | 80% | 41,829 psi | 76% | 2175 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 37,246 psi | 68% | 2162 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,826 psi | 69% | 2165 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 30,705 psi | 56% | 2047 fps | 97.5% |
| Vihtavuori N160 | <<locked>> | 88% | 35,186 psi | 64% | 2178 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 42,569 psi | 77% | 2254 fps | 99.5% |
| Vihtavuori N540 | <<locked>> | 80% | 36,245 psi | 66% | 2156 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 90% | 36,782 psi | 67% | 2228 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 96% | 32,387 psi | 59% | 2205 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 29,225 psi | 53% | 2021 fps | 95% |
| Winchester 748 | <<locked>> | 80% | 41,872 psi | 76% | 2293 fps | 99.8% |
| Winchester 760 | <<locked>> | 94% | 43,743 psi | 79% | 2365 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,435 psi | 70% | 2224 fps | 98.4% |
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 102 powders for 7.5 x 54 mm MAS loaded with the .31 | 200gr | Lapua D166. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,503 fps; across all powders the maximum-charge window runs from 1,453 fps to 2,503 fps. Accurate 3100 gives the best case fill at 100 %, and 102 of the 102 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 200.0 gr projectile in 0.308" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 4350, ADI AR 2209 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 .31 | 200gr | Lapua D166 they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Accurate 3100, ADI AR 2209 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.