Load Specifications
Bullet:.375 | 300gr | Barnes TSX FB
Bullet Manufacturer:Barnes
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:1:16.0
Load data in caliber .375 Ruger with .375 | 300gr | Barnes TSX FB bullet and 105 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 Power Pro 2000-MR 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>> | 86% | 54,056 psi | 87% | 2313 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 56,043 psi | 90% | 2379 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 54,969 psi | 89% | 2369 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 54,070 psi | 87% | 2388 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 55,564 psi | 90% | 2375 fps | 97.2% |
| Accurate 4064 | <<locked>> | 94% | 54,882 psi | 88% | 2408 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 51,039 psi | 82% | 2434 fps | 99.4% |
| ADI AR 2206H | <<locked>> | 88% | 53,142 psi | 86% | 2402 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 94% | 54,186 psi | 87% | 2398 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 88% | 55,825 psi | 90% | 2402 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 52,750 psi | 85% | 2339 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 54,012 psi | 87% | 2448 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 52,736 psi | 85% | 2500 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 53,722 psi | 87% | 2415 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 53,809 psi | 87% | 2316 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 54,549 psi | 88% | 2438 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 49,850 psi | 80% | 2441 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 98% | 54,404 psi | 88% | 2520 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,230 psi | 57% | 2215 fps | 97.9% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 38,885 psi | 63% | 2336 fps | 96.8% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 56,014 psi | 90% | 2303 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 52,924 psi | 85% | 2415 fps | 99.6% |
| Bofors RP3 | <<locked>> | 94% | 53,940 psi | 87% | 2428 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 54,752 psi | 88% | 2402 fps | 97.3% |
| Hodgdon Benchmark | <<locked>> | 86% | 54,288 psi | 87% | 2346 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 54,810 psi | 88% | 2428 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 53,287 psi | 86% | 2470 fps | 99.8% |
| Hodgdon H322 | <<locked>> | 82% | 53,142 psi | 86% | 2356 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 53,896 psi | 87% | 2379 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 55,564 psi | 90% | 2444 fps | 99.5% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 54,650 psi | 88% | 2484 fps | 98.1% |
| Hodgdon H4350 | <<locked>> | 98% | 55,680 psi | 90% | 2451 fps | 96.9% |
| Hodgdon H4895 | <<locked>> | 88% | 53,679 psi | 86% | 2408 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 46,050 psi | 74% | 2336 fps | 99.7% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 52,707 psi | 85% | 2438 fps | 100% |
| Hodgdon Superformanceᴾ | <<locked>> | 100% | 55,927 psi | 90% | 2516 fps | 97.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,925 psi | 56% | 1444 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 55,056 psi | 89% | 2411 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 53,417 psi | 86% | 2395 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 53,621 psi | 86% | 2385 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 90% | 54,157 psi | 87% | 2369 fps | 97.7% |
| IMR 4198 | <<locked>> | 82% | 54,404 psi | 88% | 2283 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 51,329 psi | 83% | 2379 fps | 96.8% |
| IMR 4451 Enduron | <<locked>> | 96% | 53,403 psi | 86% | 2388 fps | 97.5% |
| IMR 4831ᴾ | <<locked>> | 100% | 48,443 psi | 78% | 2382 fps | 99.2% |
| IMR 4895 | <<locked>> | 92% | 55,927 psi | 90% | 2464 fps | 100% |
| IMR 8208 XBR | <<locked>> | 88% | 55,825 psi | 90% | 2402 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 55,782 psi | 90% | 2388 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 56,072 psi | 90% | 2421 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 53,243 psi | 86% | 2343 fps | 99.9% |
| Lovex S062 | <<locked>> | 92% | 53,214 psi | 86% | 2382 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 55,782 psi | 90% | 2425 fps | 99% |
| Lovex S070ᴾ | <<locked>> | 100% | 52,910 psi | 85% | 2405 fps | 97.8% |
| Norma 201 | <<locked>> | 90% | 55,042 psi | 89% | 2395 fps | 100% |
| Norma 202 | <<locked>> | 90% | 55,825 psi | 90% | 2398 fps | 100% |
| Norma 203B | <<locked>> | 92% | 53,679 psi | 86% | 2428 fps | 100% |
| Norma URPᴾ | <<locked>> | 100% | 50,589 psi | 81% | 2428 fps | 99.3% |
| Ramshot Big Game | <<locked>> | 92% | 54,244 psi | 87% | 2451 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 49,603 psi | 80% | 2421 fps | 97.9% |
| Ramshot TAC | <<locked>> | 86% | 52,721 psi | 85% | 2375 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 88% | 55,622 psi | 90% | 2434 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 84% | 53,417 psi | 86% | 2362 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,360 psi | 57% | 1476 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 55,347 psi | 89% | 2385 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 55,999 psi | 90% | 2428 fps | 98.6% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 54,694 psi | 88% | 2493 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 54,244 psi | 87% | 2523 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 50,705 psi | 82% | 2454 fps | 99.2% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 51,372 psi | 83% | 2480 fps | 99% |
| Rottweil R 901 | <<locked>> | 88% | 56,086 psi | 90% | 2379 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 55,564 psi | 90% | 2392 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 53,838 psi | 87% | 2421 fps | 100% |
| Rottweil R 907 | <<locked>> | 98% | 54,752 psi | 88% | 2402 fps | 97.3% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 55,782 psi | 90% | 2425 fps | 99% |
| Shooters World Match Rifle | <<locked>> | 90% | 56,072 psi | 90% | 2421 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 53,214 psi | 86% | 2382 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 52,910 psi | 85% | 2405 fps | 97.8% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 54,969 psi | 89% | 2362 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 55,985 psi | 90% | 2477 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 54,868 psi | 88% | 2336 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 54,389 psi | 88% | 2402 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 54,984 psi | 89% | 2421 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 53,882 psi | 87% | 2306 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 53,882 psi | 87% | 2303 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 52,736 psi | 85% | 2339 fps | 97.5% |
| Somchem S321 | <<locked>> | 84% | 53,388 psi | 86% | 2388 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 56,173 psi | 90% | 2339 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 54,027 psi | 87% | 2395 fps | 99.9% |
| Somchem S355 | <<locked>> | 96% | 54,302 psi | 87% | 2418 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 45,034 psi | 73% | 2382 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 53,722 psi | 87% | 2274 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 54,041 psi | 87% | 2293 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 55,172 psi | 89% | 2359 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 52,823 psi | 85% | 2336 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 56,043 psi | 90% | 2402 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 53,316 psi | 86% | 2425 fps | 99.5% |
| Vihtavuori N530 | <<locked>> | 86% | 52,953 psi | 85% | 2362 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 54,418 psi | 88% | 2375 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 52,315 psi | 84% | 2431 fps | 99.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 37,695 psi | 61% | 2274 fps | 97.8% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 54,273 psi | 87% | 2411 fps | 100% |
| Winchester 748 | <<locked>> | 88% | 56,159 psi | 90% | 2444 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 54,897 psi | 88% | 2487 fps | 98.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 31,154 psi | 50% | 2188 fps | 97% |
| Winchester StaBALL Match | <<locked>> | 90% | 54,752 psi | 88% | 2428 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% | 44,744 psi | 72% | 2201 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 48,907 psi | 79% | 2297 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 36,782 psi | 59% | 2129 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 43,961 psi | 71% | 2260 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 45,730 psi | 74% | 2238 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 34,838 psi | 56% | 2123 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 33,330 psi | 54% | 2146 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 41,234 psi | 66% | 2224 fps | 98.8% |
| ADI AR 2208 | <<locked>> | 80% | 35,041 psi | 56% | 2100 fps | 96.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 43,323 psi | 70% | 2234 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 80% | 43,018 psi | 69% | 2221 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 50,575 psi | 81% | 2405 fps | 100% |
| Alliant Power Pro 2000-MR | 61 gr | 80% | 37,202 psi | 60% | 2241 fps | 97.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,389 psi | 55% | 2116 fps | 98.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 50,502 psi | 81% | 2277 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,985 psi | 60% | 2169 fps | 97.5% |
| Alliant Reloder-16 | <<locked>> | 86% | 32,343 psi | 52% | 2119 fps | 95% |
| Alliant Reloder-17 | 60.1 gr | 80% | 29,515 psi | 48% | 2080 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 94% | 29,138 psi | 47% | 2073 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 98% | 36,143 psi | 58% | 2280 fps | 95.7% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 52,388 psi | 84% | 2264 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 40,219 psi | 65% | 2224 fps | 97.7% |
| Bofors RP3 | <<locked>> | 80% | 33,562 psi | 54% | 2113 fps | 98% |
| Bofors RP7 | <<locked>> | 92% | 45,353 psi | 73% | 2270 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 45,223 psi | 73% | 2224 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 41,626 psi | 67% | 2247 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 80% | 46,166 psi | 74% | 2369 fps | 99.3% |
| Hodgdon H322 | <<locked>> | 80% | 49,617 psi | 80% | 2313 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 50,430 psi | 81% | 2336 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 34,606 psi | 56% | 2116 fps | 95.3% |
| Hodgdon H414 | <<locked>> | 92% | 41,771 psi | 67% | 2290 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 94% | 48,950 psi | 79% | 2356 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 41,568 psi | 67% | 2234 fps | 99.2% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 29,370 psi | 47% | 2031 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,391 psi | 60% | 2205 fps | 98.9% |
| Hodgdon Superformance | <<locked>> | 94% | 44,889 psi | 72% | 2356 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,947 psi | 42% | 1289 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,001 psi | 64% | 2195 fps | 98.9% |
| IMR 3031 | <<locked>> | 80% | 41,017 psi | 66% | 2231 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,753 psi | 59% | 2126 fps | 97.4% |
| IMR 4166 Enduron | <<locked>> | 82% | 41,989 psi | 68% | 2188 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 51,198 psi | 82% | 2247 fps | 100% |
| IMR 4350 | <<locked>> | 96% | 45,353 psi | 73% | 2290 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 90% | 44,469 psi | 72% | 2257 fps | 95.6% |
| IMR 4831 | <<locked>> | 88% | 32,532 psi | 52% | 2113 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 37,869 psi | 61% | 2195 fps | 98.2% |
| IMR 8208 XBR | <<locked>> | 80% | 43,323 psi | 70% | 2234 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 80% | 48,733 psi | 79% | 2303 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 39,755 psi | 64% | 2205 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 41,597 psi | 67% | 2172 fps | 98.8% |
| Lovex S062 | <<locked>> | 80% | 36,405 psi | 59% | 2129 fps | 98.9% |
| Lovex S065 | <<locked>> | 88% | 38,261 psi | 62% | 2162 fps | 95.5% |
| Lovex S070 | <<locked>> | 92% | 41,191 psi | 66% | 2231 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 40,147 psi | 65% | 2182 fps | 99.4% |
| Norma 202 | <<locked>> | 80% | 40,611 psi | 65% | 2195 fps | 100% |
| Norma 203B | <<locked>> | 80% | 36,376 psi | 59% | 2159 fps | 97.8% |
| Norma URP | <<locked>> | 88% | 34,098 psi | 55% | 2152 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 35,781 psi | 58% | 2165 fps | 97.5% |
| Ramshot Hunter | <<locked>> | 94% | 40,785 psi | 66% | 2280 fps | 95.8% |
| Ramshot TAC | <<locked>> | 80% | 43,265 psi | 70% | 2238 fps | 97.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 42,467 psi | 68% | 2254 fps | 99% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,717 psi | 75% | 2274 fps | 99.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,237 psi | 42% | 1319 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 48,631 psi | 78% | 2300 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 40,379 psi | 65% | 2198 fps | 95.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 38,595 psi | 62% | 2254 fps | 97.9% |
| ReloadSwiss RS 60 | 60.1 gr | 80% | 31,502 psi | 51% | 2139 fps | 98.9% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 33,388 psi | 54% | 2162 fps | 95.1% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 36,535 psi | 59% | 2221 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 43,918 psi | 71% | 2218 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 38,189 psi | 62% | 2142 fps | 99.1% |
| Rottweil R 903 | <<locked>> | 80% | 31,589 psi | 51% | 2067 fps | 97.1% |
| Rottweil R 907 | <<locked>> | 92% | 45,353 psi | 73% | 2270 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 88% | 38,261 psi | 62% | 2162 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,755 psi | 64% | 2205 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 36,405 psi | 59% | 2129 fps | 98.9% |
| Shooters World SW4350 | <<locked>> | 92% | 41,191 psi | 66% | 2231 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 51,416 psi | 83% | 2316 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 32,837 psi | 53% | 2113 fps | 96.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 51,648 psi | 83% | 2300 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 41,249 psi | 66% | 2211 fps | 97.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,827 psi | 64% | 2198 fps | 98.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,974 psi | 68% | 2149 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,621 psi | 56% | 2037 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 43,062 psi | 69% | 2205 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 46,543 psi | 75% | 2297 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 41,292 psi | 67% | 2149 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 40,930 psi | 66% | 2211 fps | 98.7% |
| Somchem S355 | <<locked>> | 80% | 32,576 psi | 52% | 2073 fps | 97.2% |
| Somchem S365 | <<locked>> | 82% | 24,976 psi | 40% | 1969 fps | 95% |
| Vihtavuori N130 | <<locked>> | 80% | 47,558 psi | 77% | 2201 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 42,264 psi | 68% | 2146 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 37,594 psi | 61% | 2133 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,406 psi | 62% | 2139 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 31,024 psi | 50% | 2024 fps | 98% |
| Vihtavuori N160 | <<locked>> | 86% | 33,576 psi | 54% | 2113 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 43,279 psi | 70% | 2228 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 80% | 36,796 psi | 59% | 2129 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 88% | 35,099 psi | 57% | 2159 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 94% | 30,966 psi | 50% | 2136 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 29,559 psi | 48% | 2001 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 42,699 psi | 69% | 2267 fps | 99.9% |
| Winchester 760 | <<locked>> | 92% | 41,959 psi | 68% | 2293 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 98% | 29,298 psi | 47% | 2139 fps | 95.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,015 psi | 63% | 2201 fps | 98.9% |
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 105 powders for .375 Ruger loaded with the .375 | 300gr | Barnes TSX FB. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,523 fps; across all powders the maximum-charge window runs from 1,444 fps to 2,523 fps. Accurate 4350 gives the best case fill at 100 %, and 105 of the 105 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (428 MPa), the top charges use 50–90 %, leaving at least 10 % headroom. The 300.0 gr projectile in 0.375" calls for a 1:16.0 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 Power Pro 2000-MR, Alliant Reloder-17 rank at the top here: for .375 Ruger with the .375 | 300gr | Barnes TSX FB 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.