Load Specifications
Bullet:.375 | 250gr | Hornady CX
Bullet Manufacturer:Hornady
Bullet Weight:250 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 | 250gr | Hornady CX bullet and 92 powders. The key underlying parameters are shown in the table above.
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>> | 92% | 55,216 psi | 89% | 2543 fps | 100% |
| Accurate 2200 | <<locked>> | 84% | 56,057 psi | 90% | 2631 fps | 98.7% |
| Accurate 2230 | <<locked>> | 82% | 52,939 psi | 85% | 2585 fps | 98.6% |
| Accurate 2460 | <<locked>> | 88% | 53,853 psi | 87% | 2566 fps | 100% |
| Accurate 2495 | <<locked>> | 98% | 55,071 psi | 89% | 2589 fps | 100% |
| Accurate 2520 | <<locked>> | 92% | 55,274 psi | 89% | 2615 fps | 100% |
| Accurate 4064ᴾ | <<locked>> | 100% | 54,476 psi | 88% | 2621 fps | 100% |
| Accurate LT-30 | <<locked>> | 86% | 56,086 psi | 90% | 2503 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 53,040 psi | 85% | 2477 fps | 100% |
| ADI AR 2206H | <<locked>> | 94% | 54,375 psi | 88% | 2618 fps | 99.1% |
| ADI AR 2207 | <<locked>> | 82% | 53,867 psi | 87% | 2480 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 55,332 psi | 89% | 2608 fps | 98.7% |
| ADI AR 2219 | <<locked>> | 86% | 56,144 psi | 90% | 2608 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 92% | 53,882 psi | 87% | 2582 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 92% | 52,895 psi | 85% | 2569 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 55,158 psi | 89% | 2677 fps | 99.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 53,867 psi | 87% | 2707 fps | 98.5% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 54,027 psi | 87% | 2625 fps | 99.6% |
| Alliant Reloder-10x | <<locked>> | 88% | 55,245 psi | 89% | 2552 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 98% | 55,245 psi | 89% | 2648 fps | 98.9% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 48,066 psi | 77% | 2621 fps | 98.8% |
| Alliant Reloder-7 | <<locked>> | 82% | 54,650 psi | 88% | 2493 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 55,201 psi | 89% | 2500 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 54,302 psi | 87% | 2628 fps | 98.3% |
| Bofors RP3ᴾ | <<locked>> | 100% | 54,244 psi | 87% | 2638 fps | 99.7% |
| Hodgdon Benchmark | <<locked>> | 90% | 52,910 psi | 85% | 2526 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 94% | 55,854 psi | 90% | 2651 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 90% | 54,027 psi | 87% | 2687 fps | 98.8% |
| Hodgdon H322 | <<locked>> | 88% | 54,563 psi | 88% | 2589 fps | 100% |
| Hodgdon H335 | <<locked>> | 88% | 55,898 psi | 90% | 2612 fps | 100% |
| Hodgdon H380 | <<locked>> | 98% | 52,576 psi | 85% | 2598 fps | 97.4% |
| Hodgdon H4198 | <<locked>> | 82% | 54,636 psi | 88% | 2503 fps | 100% |
| Hodgdon H4895 | <<locked>> | 94% | 54,868 psi | 88% | 2628 fps | 99.5% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 37,840 psi | 61% | 2375 fps | 96.1% |
| Hodgdon LEVERevolution | <<locked>> | 96% | 53,055 psi | 85% | 2648 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,939 psi | 55% | 1558 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 53,171 psi | 86% | 2589 fps | 99.3% |
| IMR 3031 | <<locked>> | 94% | 53,621 psi | 86% | 2621 fps | 100% |
| IMR 4064 | <<locked>> | 98% | 54,911 psi | 88% | 2595 fps | 98.9% |
| IMR 4198 | <<locked>> | 88% | 55,912 psi | 90% | 2520 fps | 100% |
| IMR 4895 | <<locked>> | 96% | 53,040 psi | 85% | 2631 fps | 99.1% |
| IMR 8208 XBR | <<locked>> | 92% | 53,882 psi | 87% | 2582 fps | 99.7% |
| Lovex D073.4 | <<locked>> | 82% | 53,664 psi | 86% | 2572 fps | 100% |
| Lovex D073.5 | <<locked>> | 88% | 53,853 psi | 87% | 2572 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 94% | 52,953 psi | 85% | 2598 fps | 100% |
| Lovex S060 | <<locked>> | 94% | 55,042 psi | 89% | 2556 fps | 99.2% |
| Lovex S062 | <<locked>> | 98% | 53,766 psi | 87% | 2592 fps | 99.7% |
| Norma 200 | <<locked>> | 84% | 54,940 psi | 89% | 2526 fps | 100% |
| Norma 201 | <<locked>> | 94% | 52,721 psi | 85% | 2566 fps | 99.6% |
| Norma 202 | <<locked>> | 94% | 53,243 psi | 86% | 2579 fps | 100% |
| Norma 203B | <<locked>> | 98% | 54,288 psi | 87% | 2638 fps | 99.2% |
| Ramshot Big Game | <<locked>> | 98% | 54,824 psi | 88% | 2657 fps | 99.1% |
| Ramshot TAC | <<locked>> | 92% | 54,694 psi | 88% | 2589 fps | 97.1% |
| Ramshot Wild Boar | <<locked>> | 92% | 53,534 psi | 86% | 2608 fps | 99% |
| Ramshot X-Terminator | <<locked>> | 90% | 55,506 psi | 89% | 2585 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,185 psi | 55% | 1594 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 53,751 psi | 87% | 2572 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 98% | 53,650 psi | 86% | 2579 fps | 95.9% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 54,752 psi | 88% | 2703 fps | 98.9% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 51,459 psi | 83% | 2687 fps | 100% |
| Rottweil R 901 | <<locked>> | 92% | 53,766 psi | 87% | 2559 fps | 100% |
| Rottweil R 902 | <<locked>> | 96% | 53,185 psi | 86% | 2562 fps | 99.6% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 50,270 psi | 81% | 2575 fps | 99.1% |
| Shooters World AR Plus | <<locked>> | 82% | 53,664 psi | 86% | 2572 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 94% | 52,953 psi | 85% | 2598 fps | 100% |
| Shooters World Precision | <<locked>> | 98% | 53,766 psi | 87% | 2592 fps | 99.7% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 53,867 psi | 87% | 2546 fps | 99.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 53,417 psi | 86% | 2247 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 52,895 psi | 85% | 2572 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 52,591 psi | 85% | 2635 fps | 98.9% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 52,953 psi | 85% | 2530 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 94% | 55,941 psi | 90% | 2612 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 52,794 psi | 85% | 2589 fps | 98.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 55,579 psi | 90% | 2530 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 54,998 psi | 89% | 2520 fps | 100% |
| Somchem S321 | <<locked>> | 90% | 55,245 psi | 89% | 2618 fps | 99.9% |
| Somchem S335 | <<locked>> | 94% | 54,157 psi | 87% | 2523 fps | 100% |
| Somchem S341 | <<locked>> | 94% | 55,608 psi | 90% | 2612 fps | 99.2% |
| Somchem S355ᴾ | <<locked>> | 100% | 51,198 psi | 82% | 2579 fps | 99.1% |
| Somchem S365ᴾ | <<locked>> | 100% | 36,637 psi | 59% | 2415 fps | 97.4% |
| Vihtavuori N120 | <<locked>> | 82% | 53,766 psi | 87% | 2431 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 55,448 psi | 89% | 2507 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 55,317 psi | 89% | 2516 fps | 100% |
| Vihtavuori N135 | <<locked>> | 98% | 55,216 psi | 89% | 2582 fps | 100% |
| Vihtavuori N140 | <<locked>> | 96% | 53,722 psi | 87% | 2556 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 49,574 psi | 80% | 2523 fps | 99.6% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 43,830 psi | 71% | 2474 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 92% | 54,563 psi | 88% | 2582 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 98% | 55,390 psi | 89% | 2595 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 45,440 psi | 73% | 2467 fps | 98.2% |
| Winchester 748 | <<locked>> | 92% | 53,359 psi | 86% | 2625 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 96% | 55,956 psi | 90% | 2644 fps | 99.6% |
Start Load - Barrel Length: 23"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 37,681 psi | 61% | 2290 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 49,124 psi | 79% | 2530 fps | 97.6% |
| Accurate 2230 | <<locked>> | 80% | 49,255 psi | 79% | 2533 fps | 98% |
| Accurate 2460 | <<locked>> | 80% | 40,756 psi | 66% | 2372 fps | 99.4% |
| Accurate 2495 | <<locked>> | 80% | 29,675 psi | 48% | 2188 fps | 99.5% |
| Accurate 2520 | <<locked>> | 80% | 36,027 psi | 58% | 2320 fps | 98.4% |
| Accurate 4064 | <<locked>> | 80% | 28,152 psi | 45% | 2165 fps | 97.1% |
| Accurate LT-30 | <<locked>> | 80% | 46,456 psi | 75% | 2375 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 46,818 psi | 75% | 2392 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 82% | 36,970 psi | 60% | 2329 fps | 95.5% |
| ADI AR 2207 | <<locked>> | 80% | 50,647 psi | 82% | 2441 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 38,101 psi | 61% | 2333 fps | 95% |
| ADI AR 2219 | <<locked>> | 80% | 45,730 psi | 74% | 2467 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 36,651 psi | 59% | 2300 fps | 96.8% |
| Alliant AR-Comp | <<locked>> | 80% | 35,056 psi | 56% | 2313 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 42,105 psi | 68% | 2474 fps | 97.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 41,017 psi | 66% | 2487 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 32,068 psi | 52% | 2247 fps | 95% |
| Alliant Reloder-10x | <<locked>> | 80% | 42,917 psi | 69% | 2385 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 37,405 psi | 60% | 2356 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 92% | 36,622 psi | 59% | 2402 fps | 95.6% |
| Alliant Reloder-7 | <<locked>> | 80% | 51,459 psi | 83% | 2454 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 45,440 psi | 73% | 2372 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 41,321 psi | 67% | 2425 fps | 95.6% |
| Bofors RP3 | <<locked>> | 86% | 33,388 psi | 54% | 2290 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 38,957 psi | 63% | 2306 fps | 98% |
| Hodgdon BL-C2 | <<locked>> | 80% | 34,287 psi | 55% | 2300 fps | 96.8% |
| Hodgdon CFE223 | <<locked>> | 80% | 37,942 psi | 61% | 2415 fps | 95.1% |
| Hodgdon H322 | <<locked>> | 80% | 41,713 psi | 67% | 2405 fps | 99.9% |
| Hodgdon H335 | <<locked>> | 80% | 42,337 psi | 68% | 2421 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 92% | 43,047 psi | 69% | 2448 fps | 95.3% |
| Hodgdon H4198 | <<locked>> | 80% | 51,213 psi | 83% | 2457 fps | 100% |
| Hodgdon H4895 | <<locked>> | 80% | 34,809 psi | 56% | 2290 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 35,462 psi | 57% | 2326 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 33,112 psi | 53% | 2293 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,063 psi | 40% | 1391 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 35,969 psi | 58% | 2300 fps | 95.8% |
| IMR 3031 | <<locked>> | 80% | 33,344 psi | 54% | 2300 fps | 99.5% |
| IMR 4064 | <<locked>> | 86% | 37,434 psi | 60% | 2313 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 44,063 psi | 71% | 2362 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 35,781 psi | 58% | 2336 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 80% | 36,651 psi | 59% | 2300 fps | 96.8% |
| Lovex D073.4 | <<locked>> | 80% | 49,922 psi | 80% | 2523 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 80% | 40,596 psi | 65% | 2372 fps | 98.7% |
| Lovex D073.6 | <<locked>> | 80% | 32,445 psi | 52% | 2257 fps | 97.4% |
| Lovex S060 | <<locked>> | 80% | 35,795 psi | 58% | 2241 fps | 95.1% |
| Lovex S062 | <<locked>> | 82% | 32,256 psi | 52% | 2224 fps | 95.5% |
| Norma 200 | <<locked>> | 80% | 48,457 psi | 78% | 2444 fps | 100% |
| Norma 201 | <<locked>> | 80% | 33,794 psi | 54% | 2241 fps | 96% |
| Norma 202 | <<locked>> | 80% | 33,808 psi | 54% | 2260 fps | 98.4% |
| Norma 203B | <<locked>> | 86% | 36,680 psi | 59% | 2346 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 86% | 36,448 psi | 59% | 2352 fps | 95% |
| Ramshot TAC | <<locked>> | 88% | 47,892 psi | 77% | 2490 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 82% | 37,956 psi | 61% | 2356 fps | 95.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 39,972 psi | 64% | 2343 fps | 96.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,222 psi | 41% | 1427 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 41,278 psi | 66% | 2385 fps | 99% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 50,328 psi | 81% | 2533 fps | 95.2% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 38,667 psi | 62% | 2441 fps | 95.4% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 30,110 psi | 49% | 2254 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 37,202 psi | 60% | 2297 fps | 98.9% |
| Rottweil R 902 | <<locked>> | 80% | 32,068 psi | 52% | 2198 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 88% | 33,475 psi | 54% | 2283 fps | 95.3% |
| Shooters World AR Plus | <<locked>> | 80% | 49,922 psi | 80% | 2523 fps | 99.9% |
| Shooters World Match Rifle | <<locked>> | 80% | 32,445 psi | 52% | 2257 fps | 97.4% |
| Shooters World Precision | <<locked>> | 82% | 32,256 psi | 52% | 2224 fps | 95.5% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 43,627 psi | 70% | 2395 fps | 98.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 50,763 psi | 82% | 2218 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 46,137 psi | 74% | 2474 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 37,826 psi | 61% | 2388 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 43,859 psi | 71% | 2402 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 45,469 psi | 73% | 2457 fps | 95.7% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 35,650 psi | 57% | 2300 fps | 95% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 35,781 psi | 58% | 2228 fps | 98.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 29,066 psi | 47% | 2100 fps | 97.9% |
| Somchem S321 | <<locked>> | 80% | 39,175 psi | 63% | 2369 fps | 97.9% |
| Somchem S335 | <<locked>> | 80% | 35,114 psi | 57% | 2228 fps | 99.2% |
| Somchem S341 | <<locked>> | 82% | 36,622 psi | 59% | 2310 fps | 95.3% |
| Somchem S355 | <<locked>> | 88% | 34,940 psi | 56% | 2300 fps | 95.5% |
| Somchem S365 | <<locked>> | 96% | 32,184 psi | 52% | 2313 fps | 95.6% |
| Vihtavuori N120 | <<locked>> | 80% | 50,589 psi | 81% | 2395 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 40,770 psi | 66% | 2306 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 35,839 psi | 58% | 2234 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 80% | 30,806 psi | 50% | 2201 fps | 99.6% |
| Vihtavuori N140 | <<locked>> | 80% | 31,937 psi | 51% | 2205 fps | 98.2% |
| Vihtavuori N150 | <<locked>> | 86% | 31,024 psi | 50% | 2198 fps | 95.7% |
| Vihtavuori N160 | <<locked>> | 98% | 41,046 psi | 66% | 2421 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 36,405 psi | 59% | 2293 fps | 96.9% |
| Vihtavuori N540 | <<locked>> | 80% | 30,603 psi | 49% | 2185 fps | 97.3% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 37,130 psi | 60% | 2316 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 35,143 psi | 57% | 2323 fps | 97.4% |
| Winchester StaBALL Match | <<locked>> | 82% | 34,577 psi | 56% | 2297 fps | 95.5% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 92 powders for .375 Ruger loaded with the .375 | 250gr | Hornady CX. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,707 fps; across all powders the maximum-charge window runs from 1,558 fps to 2,707 fps. Accurate 4064 gives the best case fill at 100 %, and 92 of the 92 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (428 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 250.0 gr projectile in 0.375" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 4064, ADI AR 2208, Alliant Reloder- TS 15.5 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.