Load Specifications
Bullet Manufacturer:Peregrine
Bullet Weight:300 gr
Bullet Diameter:0.376"
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 .376 | 300gr | Peregrine VRG-3 bullet and 103 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-17 and Alliant Power Pro 2000-MR.
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>> | 86% | 55,883 psi | 90% | 2346 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 54,288 psi | 87% | 2372 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 53,795 psi | 87% | 2365 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 52,634 psi | 85% | 2385 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 54,041 psi | 87% | 2372 fps | 97.2% |
| Accurate 4064 | <<locked>> | 92% | 53,693 psi | 86% | 2405 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 53,650 psi | 86% | 2480 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 88% | 55,158 psi | 89% | 2441 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 52,736 psi | 85% | 2395 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 54,288 psi | 87% | 2398 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 54,795 psi | 88% | 2372 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 56,014 psi | 90% | 2487 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 54,694 psi | 88% | 2543 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 55,898 psi | 90% | 2457 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 55,666 psi | 90% | 2349 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 52,982 psi | 85% | 2431 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 51,837 psi | 84% | 2484 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 96% | 53,011 psi | 85% | 2516 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 36,738 psi | 59% | 2260 fps | 98.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 40,640 psi | 65% | 2388 fps | 97.7% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 54,868 psi | 88% | 2454 fps | 99.8% |
| Bofors RP3 | <<locked>> | 92% | 52,765 psi | 85% | 2428 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 53,258 psi | 86% | 2402 fps | 97.4% |
| Hodgdon Benchmark | <<locked>> | 86% | 56,057 psi | 90% | 2382 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 53,185 psi | 86% | 2421 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 55,347 psi | 89% | 2510 fps | 100% |
| Hodgdon H322 | <<locked>> | 82% | 54,795 psi | 88% | 2388 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 55,941 psi | 90% | 2415 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 53,925 psi | 87% | 2438 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 98% | 53,301 psi | 86% | 2480 fps | 98.1% |
| Hodgdon H4350 | <<locked>> | 96% | 54,375 psi | 88% | 2451 fps | 97% |
| Hodgdon H4895 | <<locked>> | 88% | 55,709 psi | 90% | 2451 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 48,138 psi | 78% | 2379 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 54,868 psi | 88% | 2477 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 54,201 psi | 87% | 2513 fps | 97.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,114 psi | 57% | 1460 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 53,693 psi | 86% | 2408 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 55,579 psi | 90% | 2431 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 55,564 psi | 90% | 2425 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 90% | 55,840 psi | 90% | 2408 fps | 98.2% |
| IMR 4198 | <<locked>> | 82% | 55,796 psi | 90% | 2313 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 53,461 psi | 86% | 2421 fps | 97.5% |
| IMR 4451 Enduron | <<locked>> | 96% | 55,448 psi | 89% | 2431 fps | 98.1% |
| IMR 4831ᴾ | <<locked>> | 100% | 50,778 psi | 82% | 2428 fps | 99.5% |
| IMR 4895 | <<locked>> | 90% | 54,331 psi | 88% | 2457 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 54,288 psi | 87% | 2398 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 54,012 psi | 87% | 2382 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 54,636 psi | 88% | 2418 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 54,940 psi | 89% | 2379 fps | 100% |
| Lovex S062 | <<locked>> | 92% | 55,201 psi | 89% | 2418 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 54,259 psi | 87% | 2421 fps | 99% |
| Lovex S070ᴾ | <<locked>> | 100% | 55,158 psi | 89% | 2451 fps | 98.4% |
| Norma 201 | <<locked>> | 88% | 53,548 psi | 86% | 2388 fps | 100% |
| Norma 202 | <<locked>> | 88% | 54,302 psi | 87% | 2392 fps | 100% |
| Norma 203B | <<locked>> | 92% | 55,593 psi | 90% | 2464 fps | 100% |
| Norma 204ᴾ | <<locked>> | 100% | 54,027 psi | 87% | 2464 fps | 96.3% |
| Norma URPᴾ | <<locked>> | 100% | 53,026 psi | 85% | 2470 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 90% | 52,707 psi | 85% | 2444 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 51,822 psi | 83% | 2467 fps | 98.6% |
| Ramshot TAC | <<locked>> | 86% | 54,607 psi | 88% | 2418 fps | 99.2% |
| Ramshot Wild Boar | <<locked>> | 86% | 54,099 psi | 87% | 2431 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 84% | 55,172 psi | 89% | 2402 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,534 psi | 57% | 1493 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 53,693 psi | 86% | 2379 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 54,476 psi | 88% | 2425 fps | 98.6% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 53,359 psi | 86% | 2490 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 52,721 psi | 85% | 2516 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 53,272 psi | 86% | 2500 fps | 99.6% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 53,476 psi | 86% | 2526 fps | 99.5% |
| Rottweil R 901 | <<locked>> | 86% | 54,549 psi | 88% | 2372 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 54,259 psi | 87% | 2388 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 56,028 psi | 90% | 2461 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 53,258 psi | 86% | 2402 fps | 97.4% |
| Shooters World Long Rifle | <<locked>> | 98% | 54,259 psi | 87% | 2421 fps | 99% |
| Shooters World Match Rifle | <<locked>> | 88% | 54,636 psi | 88% | 2418 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 55,201 psi | 89% | 2418 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 55,158 psi | 89% | 2451 fps | 98.4% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 54,549 psi | 88% | 2474 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 52,634 psi | 85% | 2392 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 53,505 psi | 86% | 2415 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 55,521 psi | 89% | 2339 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 55,579 psi | 90% | 2336 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 54,708 psi | 88% | 2382 fps | 98.1% |
| Somchem S321 | <<locked>> | 84% | 55,288 psi | 89% | 2425 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 54,607 psi | 88% | 2336 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 55,999 psi | 90% | 2431 fps | 100% |
| Somchem S355 | <<locked>> | 94% | 53,055 psi | 85% | 2418 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 47,311 psi | 76% | 2428 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 55,303 psi | 89% | 2306 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 55,738 psi | 90% | 2323 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 53,766 psi | 87% | 2356 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 54,781 psi | 88% | 2372 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 54,505 psi | 88% | 2398 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 55,753 psi | 90% | 2467 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 86% | 54,781 psi | 88% | 2398 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 52,953 psi | 85% | 2372 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 54,578 psi | 88% | 2474 fps | 99.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 39,653 psi | 64% | 2320 fps | 98.5% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 52,562 psi | 85% | 2408 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 54,549 psi | 88% | 2438 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 53,519 psi | 86% | 2484 fps | 98.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 32,634 psi | 53% | 2251 fps | 98.2% |
| Winchester StaBALL Match | <<locked>> | 88% | 53,243 psi | 86% | 2421 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% | 46,224 psi | 74% | 2231 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 50,633 psi | 82% | 2329 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 38,421 psi | 62% | 2162 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 45,847 psi | 74% | 2297 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 44,193 psi | 71% | 2231 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 36,376 psi | 59% | 2159 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 32,634 psi | 53% | 2142 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 42,641 psi | 69% | 2260 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 80% | 36,332 psi | 59% | 2136 fps | 97.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 44,759 psi | 72% | 2267 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 44,846 psi | 72% | 2257 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 52,402 psi | 84% | 2441 fps | 100% |
| Alliant Power Pro 2000-MR | 63.3 gr | 80% | 38,682 psi | 62% | 2287 fps | 97.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,737 psi | 58% | 2156 fps | 98.6% |
| Alliant Reloder-10x | <<locked>> | 80% | 52,330 psi | 84% | 2313 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,363 psi | 62% | 2205 fps | 98% |
| Alliant Reloder-16 | <<locked>> | 86% | 33,475 psi | 54% | 2159 fps | 95.9% |
| Alliant Reloder-17 | 62.3 gr | 80% | 30,632 psi | 49% | 2123 fps | 96.6% |
| Alliant Reloder-23 | <<locked>> | 92% | 28,543 psi | 46% | 2070 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 96% | 35,418 psi | 57% | 2280 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 41,785 psi | 67% | 2264 fps | 98.3% |
| Bofors RP3 | <<locked>> | 80% | 35,070 psi | 56% | 2152 fps | 98.6% |
| Bofors RP7 | <<locked>> | 90% | 44,034 psi | 71% | 2264 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 46,615 psi | 75% | 2260 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 43,366 psi | 70% | 2287 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 48,037 psi | 77% | 2411 fps | 99.6% |
| Hodgdon H322 | <<locked>> | 80% | 51,474 psi | 83% | 2349 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 52,243 psi | 84% | 2369 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 36,042 psi | 58% | 2156 fps | 96.1% |
| Hodgdon H414 | <<locked>> | 90% | 40,712 psi | 66% | 2287 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 92% | 47,819 psi | 77% | 2356 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 43,004 psi | 69% | 2270 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 28,689 psi | 46% | 2028 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,044 psi | 63% | 2247 fps | 99.3% |
| Hodgdon Superformance | <<locked>> | 92% | 43,685 psi | 70% | 2352 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,063 psi | 42% | 1302 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,379 psi | 67% | 2231 fps | 99.3% |
| IMR 3031 | <<locked>> | 80% | 42,554 psi | 69% | 2264 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,116 psi | 61% | 2162 fps | 98% |
| IMR 4166 Enduron | <<locked>> | 82% | 43,323 psi | 70% | 2228 fps | 95.7% |
| IMR 4198 | <<locked>> | 80% | 52,692 psi | 85% | 2277 fps | 100% |
| IMR 4350 | <<locked>> | 94% | 44,092 psi | 71% | 2287 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 88% | 43,250 psi | 70% | 2251 fps | 95.6% |
| IMR 4831 | <<locked>> | 86% | 31,894 psi | 51% | 2113 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 39,276 psi | 63% | 2231 fps | 98.7% |
| IMR 8208 XBR | <<locked>> | 80% | 44,759 psi | 72% | 2267 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 80% | 50,343 psi | 81% | 2336 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 41,423 psi | 67% | 2241 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 42,960 psi | 69% | 2208 fps | 99.2% |
| Lovex S062 | <<locked>> | 80% | 37,782 psi | 61% | 2165 fps | 99.3% |
| Lovex S065 | <<locked>> | 86% | 37,405 psi | 60% | 2159 fps | 95.6% |
| Lovex S070 | <<locked>> | 90% | 40,089 psi | 65% | 2224 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 41,611 psi | 67% | 2218 fps | 99.7% |
| Norma 202 | <<locked>> | 80% | 42,090 psi | 68% | 2231 fps | 100% |
| Norma 203B | <<locked>> | 80% | 37,724 psi | 61% | 2195 fps | 98.4% |
| Norma 204 | <<locked>> | 98% | 50,531 psi | 81% | 2418 fps | 95.5% |
| Norma URP | <<locked>> | 86% | 33,359 psi | 54% | 2149 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 37,289 psi | 60% | 2208 fps | 98.1% |
| Ramshot Hunter | <<locked>> | 90% | 37,260 psi | 60% | 2231 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 44,744 psi | 72% | 2277 fps | 97.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,106 psi | 71% | 2290 fps | 99.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 48,341 psi | 78% | 2310 fps | 99.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,353 psi | 42% | 1335 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 50,343 psi | 81% | 2336 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 39,233 psi | 63% | 2192 fps | 95.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,292 psi | 65% | 2293 fps | 98.5% |
| ReloadSwiss RS 60 | 62.3 gr | 80% | 32,677 psi | 53% | 2178 fps | 99.4% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 32,576 psi | 52% | 2159 fps | 95.1% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 35,404 psi | 57% | 2215 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 45,542 psi | 73% | 2254 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 39,624 psi | 64% | 2178 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 80% | 32,967 psi | 53% | 2106 fps | 97.8% |
| Rottweil R 907 | <<locked>> | 90% | 44,034 psi | 71% | 2264 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 86% | 37,405 psi | 60% | 2159 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 41,423 psi | 67% | 2241 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 37,782 psi | 61% | 2165 fps | 99.3% |
| Shooters World SW4350 | <<locked>> | 90% | 40,089 psi | 65% | 2224 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,142 psi | 55% | 2152 fps | 97.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 42,641 psi | 69% | 2247 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,263 psi | 66% | 2238 fps | 99% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,294 psi | 70% | 2182 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,839 psi | 58% | 2070 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 41,959 psi | 68% | 2201 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 48,254 psi | 78% | 2336 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 42,699 psi | 69% | 2182 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 42,511 psi | 68% | 2247 fps | 99.1% |
| Somchem S355 | <<locked>> | 80% | 33,866 psi | 55% | 2113 fps | 97.8% |
| Somchem S365 | <<locked>> | 80% | 24,366 psi | 39% | 1962 fps | 95% |
| Vihtavuori N130 | <<locked>> | 80% | 49,023 psi | 79% | 2231 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 43,627 psi | 70% | 2175 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,059 psi | 63% | 2165 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,798 psi | 64% | 2175 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,256 psi | 52% | 2060 fps | 98.5% |
| Vihtavuori N160 | <<locked>> | 84% | 32,721 psi | 53% | 2106 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 44,889 psi | 72% | 2267 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 38,203 psi | 62% | 2165 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 34,316 psi | 55% | 2156 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 92% | 30,429 psi | 49% | 2136 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 28,631 psi | 46% | 1995 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 44,353 psi | 71% | 2303 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 40,901 psi | 66% | 2290 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 96% | 28,601 psi | 46% | 2136 fps | 95.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 40,654 psi | 65% | 2241 fps | 99.3% |
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 103 powders for .375 Ruger loaded with the .376 | 300gr | Peregrine VRG-3. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,543 fps; across all powders the maximum-charge window runs from 1,460 fps to 2,543 fps. Accurate 4350 gives the best case fill at 100 %, and 103 of the 103 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (428 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. The 300.0 gr projectile in 0.376" 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. ReloadSwiss RS 60, Alliant Reloder-17, Alliant Power Pro 2000-MR rank at the top here: for .375 Ruger with the .376 | 300gr | Peregrine VRG-3 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.