Load Specifications
Bullet:.375 | 270gr | Brenneke TOG
Bullet Manufacturer:Brenneke
Bullet Weight:270 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 | 270gr | Brenneke TOG bullet and 103 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.
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% | 55,506 psi | 89% | 2484 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 53,867 psi | 87% | 2503 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 53,664 psi | 86% | 2500 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 55,898 psi | 90% | 2562 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 53,476 psi | 86% | 2490 fps | 96.2% |
| Accurate 4064 | <<locked>> | 92% | 53,737 psi | 87% | 2543 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 53,069 psi | 85% | 2605 fps | 99.3% |
| ADI AR 2206H | <<locked>> | 88% | 54,563 psi | 88% | 2572 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 94% | 55,463 psi | 89% | 2566 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 86% | 53,606 psi | 86% | 2526 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 54,041 psi | 87% | 2507 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 55,405 psi | 89% | 2625 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 54,128 psi | 87% | 2674 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 55,303 psi | 89% | 2589 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 55,201 psi | 89% | 2487 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 55,941 psi | 90% | 2608 fps | 99.8% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 51,242 psi | 83% | 2608 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 98% | 56,086 psi | 90% | 2697 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 36,550 psi | 59% | 2369 fps | 97.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 40,596 psi | 65% | 2500 fps | 96.6% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 54,244 psi | 87% | 2582 fps | 99.5% |
| Bofors RP3 | <<locked>> | 94% | 55,898 psi | 90% | 2602 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 52,895 psi | 85% | 2523 fps | 96.5% |
| Hodgdon Benchmark | <<locked>> | 86% | 55,550 psi | 89% | 2513 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 52,765 psi | 85% | 2552 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 54,650 psi | 88% | 2641 fps | 99.8% |
| Hodgdon H322 | <<locked>> | 82% | 54,172 psi | 87% | 2523 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 55,347 psi | 89% | 2546 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 53,490 psi | 86% | 2566 fps | 99% |
| Hodgdon H414 | <<locked>> | 98% | 52,547 psi | 85% | 2602 fps | 97.2% |
| Hodgdon H4350 | <<locked>> | 96% | 53,766 psi | 87% | 2572 fps | 95.9% |
| Hodgdon H4895 | <<locked>> | 88% | 55,100 psi | 89% | 2582 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 47,471 psi | 76% | 2500 fps | 99.6% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 54,186 psi | 87% | 2608 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 53,766 psi | 87% | 2635 fps | 96.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,114 psi | 57% | 1555 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 53,069 psi | 85% | 2536 fps | 99.9% |
| IMR 3031 | <<locked>> | 88% | 54,839 psi | 88% | 2566 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 55,027 psi | 89% | 2552 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 90% | 55,448 psi | 89% | 2536 fps | 97.5% |
| IMR 4198 | <<locked>> | 82% | 55,230 psi | 89% | 2448 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 52,881 psi | 85% | 2543 fps | 96.5% |
| IMR 4451 Enduron | <<locked>> | 96% | 54,853 psi | 88% | 2556 fps | 97.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 50,299 psi | 81% | 2552 fps | 99.1% |
| IMR 4895 | <<locked>> | 90% | 53,983 psi | 87% | 2592 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 86% | 53,606 psi | 86% | 2526 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 53,809 psi | 87% | 2516 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 54,085 psi | 87% | 2549 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 54,360 psi | 88% | 2507 fps | 99.9% |
| Lovex S062 | <<locked>> | 92% | 54,810 psi | 88% | 2552 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 53,940 psi | 87% | 2546 fps | 98.4% |
| Lovex S070ᴾ | <<locked>> | 100% | 54,534 psi | 88% | 2575 fps | 97.6% |
| Norma 201 | <<locked>> | 88% | 53,359 psi | 86% | 2523 fps | 100% |
| Norma 202 | <<locked>> | 88% | 53,882 psi | 87% | 2526 fps | 100% |
| Norma 203B | <<locked>> | 92% | 55,100 psi | 89% | 2595 fps | 99.9% |
| Norma URPᴾ | <<locked>> | 100% | 52,185 psi | 84% | 2595 fps | 99.2% |
| Ramshot Big Game | <<locked>> | 92% | 55,695 psi | 90% | 2618 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 51,155 psi | 82% | 2589 fps | 97.7% |
| Ramshot TAC | <<locked>> | 86% | 54,070 psi | 87% | 2543 fps | 98.6% |
| Ramshot Wild Boar | <<locked>> | 86% | 53,359 psi | 86% | 2556 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 84% | 54,708 psi | 88% | 2530 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,694 psi | 57% | 1594 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 53,287 psi | 86% | 2513 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 53,882 psi | 87% | 2546 fps | 97.8% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 52,504 psi | 85% | 2618 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 55,782 psi | 90% | 2697 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 52,591 psi | 85% | 2625 fps | 99.1% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 52,939 psi | 85% | 2648 fps | 98.9% |
| Rottweil R 901 | <<locked>> | 86% | 54,447 psi | 88% | 2510 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 53,751 psi | 87% | 2520 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 55,506 psi | 89% | 2592 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 52,895 psi | 85% | 2523 fps | 96.5% |
| Shooters World Long Rifle | <<locked>> | 98% | 53,940 psi | 87% | 2546 fps | 98.4% |
| Shooters World Match Rifle | <<locked>> | 88% | 54,085 psi | 87% | 2549 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 54,810 psi | 88% | 2552 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 54,534 psi | 88% | 2575 fps | 97.6% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 53,911 psi | 87% | 2602 fps | 99.8% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 55,985 psi | 90% | 2503 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 55,941 psi | 90% | 2569 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 52,910 psi | 85% | 2543 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 55,216 psi | 89% | 2470 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 55,071 psi | 89% | 2467 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 54,462 psi | 88% | 2503 fps | 97.3% |
| Somchem S321 | <<locked>> | 84% | 54,955 psi | 89% | 2559 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 54,346 psi | 88% | 2467 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 55,419 psi | 89% | 2562 fps | 99.9% |
| Somchem S355 | <<locked>> | 96% | 55,970 psi | 90% | 2589 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 46,804 psi | 75% | 2552 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 54,868 psi | 88% | 2438 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 55,317 psi | 89% | 2457 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 53,185 psi | 86% | 2490 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 54,331 psi | 88% | 2507 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 53,983 psi | 87% | 2526 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 55,027 psi | 89% | 2595 fps | 99.4% |
| Vihtavuori N530 | <<locked>> | 86% | 54,244 psi | 87% | 2530 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 55,985 psi | 90% | 2546 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 53,998 psi | 87% | 2598 fps | 99.2% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 39,479 psi | 64% | 2438 fps | 97.7% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 55,680 psi | 90% | 2575 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 53,882 psi | 87% | 2572 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 52,837 psi | 85% | 2605 fps | 97.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 32,605 psi | 53% | 2346 fps | 96.8% |
| Winchester StaBALL Match | <<locked>> | 88% | 52,649 psi | 85% | 2549 fps | 99.9% |
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% | 46,079 psi | 74% | 2362 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 50,459 psi | 81% | 2461 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 38,798 psi | 63% | 2290 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 45,643 psi | 74% | 2425 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 50,111 psi | 81% | 2444 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 36,695 psi | 59% | 2283 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 34,940 psi | 56% | 2303 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 42,511 psi | 68% | 2385 fps | 98.6% |
| ADI AR 2208 | <<locked>> | 80% | 36,100 psi | 58% | 2247 fps | 96.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 44,585 psi | 72% | 2395 fps | 99.6% |
| Alliant AR-Comp | <<locked>> | 80% | 44,367 psi | 71% | 2385 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 52,025 psi | 84% | 2575 fps | 99.9% |
| Alliant Power Pro 2000-MR | 66.6 gr | 80% | 38,334 psi | 62% | 2398 fps | 96.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,505 psi | 57% | 2267 fps | 97.9% |
| Alliant Reloder-10x | <<locked>> | 80% | 51,851 psi | 84% | 2444 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,319 psi | 62% | 2323 fps | 97.2% |
| Alliant Reloder-16 | <<locked>> | 88% | 35,505 psi | 57% | 2316 fps | 95.5% |
| Alliant Reloder-17 | 65.6 gr | 80% | 30,661 psi | 49% | 2228 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 94% | 30,443 psi | 49% | 2221 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 98% | 37,811 psi | 61% | 2441 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 41,510 psi | 67% | 2382 fps | 97.5% |
| Bofors RP3 | <<locked>> | 80% | 34,998 psi | 56% | 2267 fps | 97.8% |
| Bofors RP7 | <<locked>> | 92% | 46,673 psi | 75% | 2428 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 46,354 psi | 75% | 2385 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 43,062 psi | 69% | 2411 fps | 99.7% |
| Hodgdon CFE223 | <<locked>> | 80% | 47,413 psi | 76% | 2536 fps | 99.1% |
| Hodgdon H322 | <<locked>> | 80% | 50,879 psi | 82% | 2480 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 51,677 psi | 83% | 2500 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 35,998 psi | 58% | 2270 fps | 95.1% |
| Hodgdon H414 | <<locked>> | 94% | 46,050 psi | 74% | 2500 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 94% | 50,372 psi | 81% | 2523 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 42,902 psi | 69% | 2395 fps | 99.1% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 30,472 psi | 49% | 2175 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,638 psi | 62% | 2362 fps | 98.7% |
| Hodgdon Superformance | <<locked>> | 94% | 46,514 psi | 75% | 2520 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,208 psi | 42% | 1391 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,031 psi | 66% | 2349 fps | 98.7% |
| IMR 3031 | <<locked>> | 80% | 42,163 psi | 68% | 2392 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 37,884 psi | 61% | 2277 fps | 97.1% |
| IMR 4166 Enduron | <<locked>> | 84% | 45,818 psi | 74% | 2388 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 52,083 psi | 84% | 2411 fps | 100% |
| IMR 4350 | <<locked>> | 96% | 46,702 psi | 75% | 2451 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 90% | 45,556 psi | 73% | 2411 fps | 95.2% |
| IMR 4831 | <<locked>> | 88% | 33,953 psi | 55% | 2267 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 39,233 psi | 63% | 2352 fps | 98% |
| IMR 8208 XBR | <<locked>> | 80% | 44,585 psi | 72% | 2395 fps | 99.6% |
| Lovex D073.5 | <<locked>> | 80% | 50,256 psi | 81% | 2467 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 41,394 psi | 67% | 2365 fps | 99.9% |
| Lovex S060 | <<locked>> | 80% | 42,786 psi | 69% | 2329 fps | 98.6% |
| Lovex S062 | <<locked>> | 80% | 37,826 psi | 61% | 2287 fps | 98.7% |
| Lovex S065 | <<locked>> | 88% | 39,668 psi | 64% | 2316 fps | 95.3% |
| Lovex S070 | <<locked>> | 94% | 45,310 psi | 73% | 2434 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 41,626 psi | 67% | 2343 fps | 99.3% |
| Norma 202 | <<locked>> | 80% | 41,742 psi | 67% | 2352 fps | 100% |
| Norma 203B | <<locked>> | 80% | 37,710 psi | 61% | 2313 fps | 97.6% |
| Norma URP | <<locked>> | 88% | 35,505 psi | 57% | 2310 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 36,985 psi | 60% | 2320 fps | 97.2% |
| Ramshot Hunter | <<locked>> | 94% | 42,206 psi | 68% | 2441 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 44,324 psi | 71% | 2392 fps | 96.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 43,714 psi | 70% | 2411 fps | 98.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 48,124 psi | 78% | 2434 fps | 99.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,498 psi | 43% | 1427 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 49,937 psi | 80% | 2467 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 41,568 psi | 67% | 2352 fps | 95% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 39,842 psi | 64% | 2411 fps | 97.6% |
| ReloadSwiss RS 60 | 65.6 gr | 80% | 32,619 psi | 53% | 2290 fps | 98.7% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 37,246 psi | 60% | 2369 fps | 95.8% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 40,335 psi | 65% | 2431 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 45,484 psi | 73% | 2382 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 39,581 psi | 64% | 2300 fps | 99% |
| Rottweil R 903 | <<locked>> | 80% | 33,025 psi | 53% | 2218 fps | 96.9% |
| Rottweil R 907 | <<locked>> | 92% | 46,673 psi | 75% | 2428 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 88% | 39,668 psi | 64% | 2316 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 41,394 psi | 67% | 2365 fps | 99.9% |
| Shooters World Precision | <<locked>> | 80% | 37,826 psi | 61% | 2287 fps | 98.7% |
| Shooters World SW4350 | <<locked>> | 94% | 45,310 psi | 73% | 2434 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,982 psi | 55% | 2260 fps | 96.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 52,808 psi | 85% | 2467 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 42,569 psi | 69% | 2369 fps | 96.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,944 psi | 66% | 2356 fps | 98.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,149 psi | 70% | 2306 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,752 psi | 58% | 2188 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 44,599 psi | 72% | 2362 fps | 95.2% |
| Somchem S321 | <<locked>> | 80% | 47,979 psi | 77% | 2464 fps | 99.9% |
| Somchem S335 | <<locked>> | 80% | 42,685 psi | 69% | 2306 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 42,279 psi | 68% | 2369 fps | 98.5% |
| Somchem S355 | <<locked>> | 80% | 33,939 psi | 55% | 2228 fps | 97% |
| Somchem S365 | <<locked>> | 84% | 27,847 psi | 45% | 2162 fps | 95.8% |
| Vihtavuori N130 | <<locked>> | 80% | 48,747 psi | 79% | 2362 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 43,395 psi | 70% | 2303 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 38,928 psi | 63% | 2290 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,610 psi | 64% | 2293 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,256 psi | 52% | 2172 fps | 97.8% |
| Vihtavuori N160 | <<locked>> | 86% | 34,737 psi | 56% | 2260 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 44,483 psi | 72% | 2388 fps | 99.6% |
| Vihtavuori N540 | <<locked>> | 80% | 38,087 psi | 61% | 2283 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 88% | 36,477 psi | 59% | 2313 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 94% | 32,503 psi | 52% | 2293 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 30,690 psi | 49% | 2146 fps | 95.6% |
| Winchester 748 | <<locked>> | 80% | 44,005 psi | 71% | 2428 fps | 99.9% |
| Winchester 760 | <<locked>> | 94% | 46,238 psi | 74% | 2503 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 98% | 30,603 psi | 49% | 2290 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 40,393 psi | 65% | 2359 fps | 98.7% |
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 .375 | 270gr | Brenneke TOG. Alliant Reloder-17 delivers the highest muzzle velocity at 2,697 fps; across all powders the maximum-charge window runs from 1,555 fps to 2,697 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 270.0 gr projectile in 0.375" 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. Alliant Power Pro 2000-MR, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for .375 Ruger with the .375 | 270gr | Brenneke TOG 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.