Load Specifications
Bullet Manufacturer:Woodleigh
Bullet Weight:300 gr
Bullet Diameter:0.375"
Bullet Length:<<locked>>
Caliber:.375 Ruger load data
Case Length (l3):2.572"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:99 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:23"
Max. allowed Pressure:62,076 psi
Recommended Twist Rate:1:6.0
Load data in caliber .375 Ruger with .375 | 300gr | Woodleigh PP SN bullet and 102 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-17, ReloadSwiss RS 60 and Winchester 760.
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>> | 82% | 52,881 psi | 85% | 2320 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 55,071 psi | 89% | 2385 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 53,113 psi | 86% | 2398 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 54,099 psi | 87% | 2388 fps | 97.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 42,090 psi | 68% | 2306 fps | 97% |
| Accurate 4064 | <<locked>> | 90% | 55,071 psi | 89% | 2428 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 54,897 psi | 88% | 2507 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 86% | 55,274 psi | 89% | 2454 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 53,026 psi | 85% | 2415 fps | 99.9% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 49,763 psi | 80% | 2434 fps | 95.8% |
| ADI Benchmark 8208 | <<locked>> | 84% | 54,375 psi | 88% | 2411 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 55,259 psi | 89% | 2385 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 55,042 psi | 89% | 2562 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 49,603 psi | 80% | 2438 fps | 96% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 49,603 psi | 80% | 2438 fps | 96% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 53,026 psi | 85% | 2431 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 53,592 psi | 86% | 2451 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 55,898 psi | 90% | 2552 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 53,722 psi | 87% | 2539 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 48,863 psi | 79% | 2428 fps | 95.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 40,190 psi | 65% | 2336 fps | 99.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 44,860 psi | 72% | 2474 fps | 99% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 55,056 psi | 89% | 2467 fps | 99.9% |
| Bofors RP3 | <<locked>> | 90% | 53,548 psi | 86% | 2444 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 53,606 psi | 86% | 2421 fps | 97.8% |
| Hodgdon Benchmark | <<locked>> | 84% | 56,043 psi | 90% | 2395 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 53,592 psi | 86% | 2438 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 55,753 psi | 90% | 2526 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 54,491 psi | 88% | 2457 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 96% | 54,041 psi | 87% | 2503 fps | 98.5% |
| Hodgdon H4350 | <<locked>> | 94% | 54,781 psi | 88% | 2470 fps | 97.4% |
| Hodgdon H4895 | <<locked>> | 86% | 55,854 psi | 90% | 2461 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 52,199 psi | 84% | 2441 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 55,274 psi | 89% | 2490 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 54,636 psi | 88% | 2536 fps | 98.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,621 psi | 57% | 1483 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 53,606 psi | 86% | 2421 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 56,086 psi | 90% | 2444 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 55,869 psi | 90% | 2441 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 55,840 psi | 90% | 2425 fps | 98.5% |
| IMR 4350 | <<locked>> | 98% | 53,911 psi | 87% | 2444 fps | 97.9% |
| IMR 4451 Enduron | <<locked>> | 94% | 55,521 psi | 89% | 2448 fps | 98.4% |
| IMR 4831ᴾ | <<locked>> | 100% | 55,187 psi | 89% | 2493 fps | 99.9% |
| IMR 4895 | <<locked>> | 88% | 54,926 psi | 88% | 2477 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 54,375 psi | 88% | 2411 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 55,245 psi | 89% | 2434 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 54,781 psi | 88% | 2392 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 55,622 psi | 90% | 2434 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 54,926 psi | 88% | 2441 fps | 99.3% |
| Lovex S070 | <<locked>> | 98% | 55,956 psi | 90% | 2474 fps | 98.8% |
| Norma 201 | <<locked>> | 86% | 54,186 psi | 87% | 2408 fps | 100% |
| Norma 202 | <<locked>> | 86% | 54,578 psi | 88% | 2405 fps | 100% |
| Norma 203B | <<locked>> | 90% | 56,086 psi | 90% | 2480 fps | 100% |
| Norma 204 | <<locked>> | 98% | 54,433 psi | 88% | 2487 fps | 96.8% |
| Norma MRPᴾ | <<locked>> | 100% | 44,701 psi | 72% | 2434 fps | 96.5% |
| Norma URP | <<locked>> | 98% | 53,896 psi | 87% | 2493 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 88% | 53,229 psi | 86% | 2461 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 56,173 psi | 90% | 2539 fps | 99.3% |
| Ramshot TAC | <<locked>> | 84% | 54,491 psi | 88% | 2431 fps | 99.4% |
| Ramshot Wild Boar | <<locked>> | 84% | 54,273 psi | 87% | 2444 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 55,027 psi | 89% | 2411 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,114 psi | 58% | 1519 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 54,752 psi | 88% | 2441 fps | 98.9% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 53,911 psi | 87% | 2507 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 53,287 psi | 86% | 2536 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 54,563 psi | 88% | 2526 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 54,041 psi | 87% | 2549 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 84% | 55,187 psi | 89% | 2388 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 54,563 psi | 88% | 2405 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 53,359 psi | 86% | 2438 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 53,606 psi | 86% | 2421 fps | 97.8% |
| Shooters World Long Rifle | <<locked>> | 96% | 54,926 psi | 88% | 2441 fps | 99.3% |
| Shooters World Match Rifle | <<locked>> | 86% | 55,245 psi | 89% | 2434 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 55,622 psi | 90% | 2434 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 55,956 psi | 90% | 2474 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 55,216 psi | 89% | 2490 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 52,852 psi | 85% | 2408 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 53,693 psi | 86% | 2431 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 55,608 psi | 90% | 2352 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 55,782 psi | 90% | 2349 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 55,158 psi | 89% | 2402 fps | 98.4% |
| Somchem S321 | <<locked>> | 82% | 55,535 psi | 89% | 2438 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 55,013 psi | 89% | 2349 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 56,144 psi | 90% | 2448 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 53,679 psi | 86% | 2434 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 51,735 psi | 83% | 2493 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 48,153 psi | 78% | 2395 fps | 96.8% |
| Vihtavuori N130 | <<locked>> | 82% | 55,245 psi | 89% | 2313 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 55,883 psi | 90% | 2336 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 54,520 psi | 88% | 2372 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 55,056 psi | 89% | 2385 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 55,230 psi | 89% | 2418 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 52,765 psi | 85% | 2444 fps | 99.7% |
| Vihtavuori N530 | <<locked>> | 84% | 54,795 psi | 88% | 2411 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 53,330 psi | 86% | 2388 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 55,463 psi | 89% | 2497 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 44,005 psi | 71% | 2398 fps | 99.4% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 52,852 psi | 85% | 2425 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 54,708 psi | 88% | 2451 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 54,244 psi | 87% | 2507 fps | 98.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 35,882 psi | 58% | 2346 fps | 99.6% |
| Winchester StaBALL Match | <<locked>> | 86% | 53,635 psi | 86% | 2438 fps | 100% |
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% | 49,705 psi | 80% | 2283 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 42,525 psi | 69% | 2228 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 49,545 psi | 80% | 2356 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 44,469 psi | 72% | 2247 fps | 95.5% |
| Accurate 3100 | <<locked>> | 96% | 36,564 psi | 59% | 2211 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 40,205 psi | 65% | 2224 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 31,604 psi | 51% | 2126 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 45,759 psi | 74% | 2320 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 80% | 39,001 psi | 63% | 2195 fps | 98.3% |
| ADI AR 2209 | <<locked>> | 98% | 46,775 psi | 75% | 2388 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 47,863 psi | 77% | 2323 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 48,472 psi | 78% | 2306 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 41,742 psi | 67% | 2356 fps | 98.9% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 46,485 psi | 75% | 2388 fps | 95.2% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 46,485 psi | 75% | 2388 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,711 psi | 62% | 2215 fps | 99.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 41,481 psi | 67% | 2267 fps | 98.9% |
| Alliant Reloder-16 | <<locked>> | 82% | 32,010 psi | 52% | 2136 fps | 95.6% |
| Alliant Reloder-17 | 65.5 gr | 80% | 33,460 psi | 54% | 2195 fps | 98% |
| Alliant Reloder-19 | <<locked>> | 98% | 45,832 psi | 74% | 2382 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 88% | 27,775 psi | 45% | 2057 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 92% | 33,939 psi | 55% | 2257 fps | 95.7% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 45,092 psi | 73% | 2329 fps | 99.1% |
| Bofors RP3 | <<locked>> | 80% | 38,435 psi | 62% | 2221 fps | 99.4% |
| Bofors RP7 | <<locked>> | 86% | 41,901 psi | 68% | 2241 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 49,617 psi | 80% | 2313 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 46,847 psi | 75% | 2346 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 51,938 psi | 84% | 2477 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 80% | 39,247 psi | 63% | 2224 fps | 97.4% |
| Hodgdon H414 | <<locked>> | 86% | 38,856 psi | 63% | 2264 fps | 95% |
| Hodgdon H4350 | <<locked>> | 88% | 45,179 psi | 73% | 2326 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 46,238 psi | 74% | 2329 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 27,615 psi | 44% | 2005 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 42,322 psi | 68% | 2310 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 88% | 41,147 psi | 66% | 2323 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,484 psi | 43% | 1322 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,324 psi | 71% | 2290 fps | 99.7% |
| IMR 3031 | <<locked>> | 80% | 46,093 psi | 74% | 2320 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,959 psi | 66% | 2224 fps | 98.8% |
| IMR 4166 Enduron | <<locked>> | 80% | 43,468 psi | 70% | 2244 fps | 96.2% |
| IMR 4350 | <<locked>> | 90% | 42,076 psi | 68% | 2264 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 84% | 40,959 psi | 66% | 2224 fps | 95.4% |
| IMR 4831 | <<locked>> | 82% | 30,763 psi | 50% | 2090 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 42,511 psi | 68% | 2293 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 80% | 47,863 psi | 77% | 2323 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 45,092 psi | 73% | 2303 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 45,643 psi | 74% | 2264 fps | 99.7% |
| Lovex S062 | <<locked>> | 80% | 40,872 psi | 66% | 2224 fps | 99.7% |
| Lovex S065 | <<locked>> | 82% | 35,795 psi | 58% | 2136 fps | 95.4% |
| Lovex S070 | <<locked>> | 86% | 38,479 psi | 62% | 2205 fps | 95% |
| Norma 201 | <<locked>> | 80% | 44,976 psi | 72% | 2280 fps | 100% |
| Norma 202 | <<locked>> | 80% | 45,223 psi | 73% | 2283 fps | 100% |
| Norma 203B | <<locked>> | 80% | 40,857 psi | 66% | 2257 fps | 99.1% |
| Norma 204 | <<locked>> | 94% | 47,688 psi | 77% | 2388 fps | 95.3% |
| Norma MRP | <<locked>> | 98% | 41,887 psi | 67% | 2385 fps | 95.6% |
| Norma URP | <<locked>> | 82% | 32,039 psi | 52% | 2126 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 40,480 psi | 65% | 2274 fps | 99% |
| Ramshot Hunter | <<locked>> | 88% | 37,956 psi | 61% | 2254 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 47,776 psi | 77% | 2336 fps | 98.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 47,413 psi | 76% | 2352 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 51,735 psi | 83% | 2369 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,847 psi | 43% | 1355 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 39,653 psi | 64% | 2211 fps | 95.8% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 43,947 psi | 71% | 2362 fps | 99.3% |
| ReloadSwiss RS 60 | 65.5 gr | 80% | 35,592 psi | 57% | 2251 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 31,444 psi | 51% | 2139 fps | 95% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 35,998 psi | 58% | 2241 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 48,936 psi | 79% | 2306 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 42,786 psi | 69% | 2238 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 36,260 psi | 58% | 2175 fps | 98.8% |
| Rottweil R 907 | <<locked>> | 86% | 41,901 psi | 68% | 2241 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 82% | 35,795 psi | 58% | 2136 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 45,092 psi | 73% | 2303 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 40,872 psi | 66% | 2224 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 86% | 38,479 psi | 62% | 2205 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,115 psi | 60% | 2218 fps | 98.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 46,238 psi | 74% | 2316 fps | 98.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,353 psi | 71% | 2297 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,311 psi | 75% | 2234 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,638 psi | 62% | 2123 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 39,914 psi | 64% | 2178 fps | 95.2% |
| Somchem S321 | <<locked>> | 80% | 51,909 psi | 84% | 2395 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 45,876 psi | 74% | 2234 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 45,919 psi | 74% | 2310 fps | 99.7% |
| Somchem S355 | <<locked>> | 80% | 37,014 psi | 60% | 2178 fps | 98.8% |
| Somchem S365 | <<locked>> | 80% | 26,890 psi | 43% | 2037 fps | 96.9% |
| Somchem S385 | <<locked>> | 96% | 42,148 psi | 68% | 2300 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 52,185 psi | 84% | 2280 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 46,688 psi | 75% | 2224 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 42,453 psi | 68% | 2221 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 42,946 psi | 69% | 2228 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,215 psi | 57% | 2123 fps | 99.3% |
| Vihtavuori N160 | <<locked>> | 80% | 31,270 psi | 50% | 2080 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 48,022 psi | 77% | 2323 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 41,321 psi | 67% | 2221 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 32,909 psi | 53% | 2129 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 88% | 29,718 psi | 48% | 2119 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,125 psi | 50% | 2064 fps | 97.3% |
| Winchester 748 | <<locked>> | 80% | 47,993 psi | 77% | 2365 fps | 100% |
| Winchester 760 | 69 gr | 86% | 39,030 psi | 63% | 2267 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 92% | 27,862 psi | 45% | 2126 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 80% | 43,816 psi | 71% | 2300 fps | 99.8% |
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 102 powders for .375 Ruger loaded with the .375 | 300gr | Woodleigh PP SN. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,562 fps; across all powders the maximum-charge window runs from 1,483 fps to 2,562 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 (428 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 300.0 gr projectile in 0.375" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Power Pro Varmint 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 Reloder-17, ReloadSwiss RS 60, Winchester 760 rank at the top here: for .375 Ruger with the .375 | 300gr | Woodleigh PP SN 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.