Load Specifications
Bullet Manufacturer:Hornady
Bullet Weight:300 gr
Bullet Diameter:0.375"
Bullet Length:<<locked>>
Caliber:.375 Blaser Mag. load data
Case Length (l3):2.814"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:107.5 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:25.6"
Max. allowed Pressure:60,916 psi
Recommended Twist Rate:1:6.0
Load data in caliber .375 Blaser Mag. with .375 | 300gr | Hornady FMJ RN bullet and 104 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, ReloadSwiss RS 70 and Alliant Reloder-16.
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: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 84% | 51,764 psi | 85% | 2474 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 53,635 psi | 88% | 2530 fps | 98.4% |
| Accurate 3100ᴾ | <<locked>> | 100% | 45,484 psi | 75% | 2507 fps | 98.6% |
| Accurate 4064 | <<locked>> | 86% | 52,011 psi | 85% | 2520 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 51,547 psi | 85% | 2608 fps | 100% |
| Accurate High Countryᴾ | <<locked>> | 100% | 49,501 psi | 81% | 2680 fps | 96.3% |
| ADI AR 2206H | <<locked>> | 82% | 51,837 psi | 85% | 2546 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 52,837 psi | 87% | 2549 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 53,142 psi | 87% | 2644 fps | 97.7% |
| ADI Benchmark 8208 | <<locked>> | 82% | 54,041 psi | 89% | 2543 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 54,897 psi | 90% | 2710 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 52,736 psi | 87% | 2641 fps | 97.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 53,142 psi | 87% | 2572 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 53,505 psi | 88% | 2592 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 52,765 psi | 87% | 2661 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 53,577 psi | 88% | 2687 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 51,953 psi | 85% | 2631 fps | 97.6% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 45,745 psi | 75% | 2579 fps | 96.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 43,120 psi | 71% | 2533 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 37,956 psi | 62% | 2448 fps | 97.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 48,414 psi | 79% | 2697 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 54,766 psi | 90% | 2612 fps | 100% |
| Bofors RP3 | <<locked>> | 88% | 53,592 psi | 88% | 2585 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 45,745 psi | 75% | 2579 fps | 96.5% |
| Bofors RP7 | <<locked>> | 92% | 53,345 psi | 88% | 2566 fps | 98.6% |
| Hodgdon BL-C2 | <<locked>> | 82% | 53,374 psi | 88% | 2572 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 54,230 psi | 89% | 2602 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 94% | 54,143 psi | 89% | 2657 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 92% | 54,708 psi | 90% | 2621 fps | 98.3% |
| Hodgdon H4895 | <<locked>> | 82% | 52,359 psi | 86% | 2556 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 52,649 psi | 86% | 2589 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 51,866 psi | 85% | 2589 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 54,186 psi | 89% | 2694 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,984 psi | 59% | 1565 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 53,243 psi | 87% | 2556 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 52,562 psi | 86% | 2533 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 52,257 psi | 86% | 2533 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 51,938 psi | 85% | 2516 fps | 98.7% |
| IMR 4350 | <<locked>> | 96% | 53,882 psi | 88% | 2595 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 90% | 51,996 psi | 85% | 2546 fps | 98.7% |
| IMR 4831 | <<locked>> | 96% | 52,214 psi | 86% | 2602 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 54,839 psi | 90% | 2618 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 52,910 psi | 87% | 2579 fps | 95.9% |
| IMR 8208 XBR | <<locked>> | 82% | 54,041 psi | 89% | 2543 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 54,969 psi | 90% | 2566 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 54,288 psi | 89% | 2520 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 52,330 psi | 86% | 2530 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 54,926 psi | 90% | 2589 fps | 99.7% |
| Lovex S070 | <<locked>> | 94% | 52,460 psi | 86% | 2575 fps | 99% |
| Lovex S071ᴾ | <<locked>> | 100% | 37,884 psi | 62% | 2372 fps | 97% |
| Norma 201 | <<locked>> | 84% | 53,838 psi | 88% | 2539 fps | 100% |
| Norma 202 | <<locked>> | 84% | 54,462 psi | 89% | 2536 fps | 100% |
| Norma 203B | <<locked>> | 86% | 52,736 psi | 87% | 2579 fps | 100% |
| Norma 204 | <<locked>> | 96% | 54,331 psi | 89% | 2644 fps | 97.8% |
| Norma MRPᴾ | <<locked>> | 100% | 48,080 psi | 79% | 2651 fps | 98.4% |
| Norma URP | <<locked>> | 96% | 54,012 psi | 89% | 2644 fps | 100% |
| Ramshot Big Game | <<locked>> | 86% | 53,171 psi | 87% | 2605 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 52,779 psi | 87% | 2648 fps | 99.5% |
| Ramshot TAC | <<locked>> | 82% | 53,853 psi | 88% | 2566 fps | 99.7% |
| Ramshot Wild Boar | <<locked>> | 82% | 53,896 psi | 88% | 2582 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,463 psi | 60% | 1601 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 54,389 psi | 89% | 2585 fps | 99.4% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 53,954 psi | 89% | 2651 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 53,316 psi | 88% | 2680 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 54,752 psi | 90% | 2680 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 53,925 psi | 89% | 2710 fps | 100% |
| Rottweil R 901 | <<locked>> | 82% | 54,969 psi | 90% | 2516 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 54,331 psi | 89% | 2536 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 53,635 psi | 88% | 2579 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 54,824 psi | 90% | 2615 fps | 96.9% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 50,966 psi | 84% | 2618 fps | 97.6% |
| Rottweil R 907 | <<locked>> | 92% | 53,345 psi | 88% | 2566 fps | 98.6% |
| Shooters World Long Rifle | <<locked>> | 94% | 54,926 psi | 90% | 2589 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 84% | 54,969 psi | 90% | 2566 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 52,330 psi | 86% | 2530 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 52,460 psi | 86% | 2575 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 55,100 psi | 90% | 2638 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 52,634 psi | 86% | 2549 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 53,417 psi | 88% | 2569 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 51,750 psi | 85% | 2431 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 52,214 psi | 86% | 2438 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 54,882 psi | 90% | 2546 fps | 99.1% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 50,488 psi | 83% | 2612 fps | 97.5% |
| Somchem S335 | <<locked>> | 84% | 54,549 psi | 90% | 2474 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 52,257 psi | 86% | 2536 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 53,766 psi | 88% | 2575 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 52,475 psi | 86% | 2648 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 51,764 psi | 85% | 2598 fps | 98.4% |
| Vihtavuori N133 | <<locked>> | 82% | 52,127 psi | 86% | 2418 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 54,491 psi | 89% | 2500 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 54,998 psi | 90% | 2516 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 54,969 psi | 90% | 2552 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 52,953 psi | 87% | 2592 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 44,469 psi | 73% | 2474 fps | 96.5% |
| Vihtavuori N530 | <<locked>> | 82% | 54,259 psi | 89% | 2539 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 53,098 psi | 87% | 2520 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 52,098 psi | 86% | 2602 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 47,950 psi | 79% | 2598 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 52,620 psi | 86% | 2569 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 54,491 psi | 89% | 2585 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 54,331 psi | 89% | 2661 fps | 99.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 38,609 psi | 63% | 2566 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 53,417 psi | 88% | 2575 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 48,457 psi | 80% | 2539 fps | 96.7% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 45,614 psi | 75% | 2388 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 44,048 psi | 72% | 2379 fps | 96.6% |
| Accurate 3100 | <<locked>> | 90% | 32,489 psi | 53% | 2260 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 43,149 psi | 71% | 2395 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 31,908 psi | 52% | 2257 fps | 96.9% |
| Accurate High Country | <<locked>> | 98% | 46,383 psi | 76% | 2625 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 48,501 psi | 80% | 2497 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 41,292 psi | 68% | 2365 fps | 99.3% |
| ADI AR 2209 | <<locked>> | 94% | 43,859 psi | 72% | 2490 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,604 psi | 83% | 2497 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,585 psi | 73% | 2549 fps | 99.8% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 43,671 psi | 72% | 2490 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,278 psi | 68% | 2388 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,150 psi | 72% | 2448 fps | 99.7% |
| Alliant Reloder-16 | 66.6 gr | 80% | 32,111 psi | 53% | 2270 fps | 97% |
| Alliant Reloder-17 | <<locked>> | 80% | 35,810 psi | 59% | 2382 fps | 99.4% |
| Alliant Reloder-19 | <<locked>> | 94% | 43,120 psi | 71% | 2484 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 98% | 42,772 psi | 70% | 2523 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 82% | 24,758 psi | 41% | 2096 fps | 95% |
| Alliant Reloder-25 | <<locked>> | 96% | 33,547 psi | 55% | 2346 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 86% | 29,834 psi | 49% | 2297 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,892 psi | 79% | 2510 fps | 99.8% |
| Bofors RP3 | <<locked>> | 80% | 41,220 psi | 68% | 2398 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 42,772 psi | 70% | 2523 fps | 95.7% |
| Bofors RP7 | <<locked>> | 82% | 39,291 psi | 65% | 2326 fps | 95.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 49,922 psi | 82% | 2523 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 41,771 psi | 69% | 2402 fps | 98.8% |
| Hodgdon H414 | <<locked>> | 82% | 36,506 psi | 60% | 2352 fps | 95.4% |
| Hodgdon H4350 | <<locked>> | 84% | 42,322 psi | 69% | 2421 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 49,037 psi | 81% | 2507 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,544 psi | 49% | 2175 fps | 97.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 45,324 psi | 74% | 2490 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 38,247 psi | 63% | 2415 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,789 psi | 44% | 1394 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,992 psi | 77% | 2464 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 49,197 psi | 81% | 2487 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,366 psi | 71% | 2395 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,759 psi | 75% | 2418 fps | 97.7% |
| IMR 4350 | <<locked>> | 86% | 39,552 psi | 65% | 2356 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 38,247 psi | 63% | 2306 fps | 95.7% |
| IMR 4831 | <<locked>> | 80% | 31,053 psi | 51% | 2221 fps | 96.6% |
| IMR 4895 | <<locked>> | 80% | 45,266 psi | 74% | 2474 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 49,734 psi | 82% | 2533 fps | 95.2% |
| IMR 8208 XBR | <<locked>> | 80% | 50,604 psi | 83% | 2497 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 48,196 psi | 79% | 2477 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,196 psi | 79% | 2434 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 43,511 psi | 71% | 2395 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 35,882 psi | 59% | 2264 fps | 96.6% |
| Lovex S070 | <<locked>> | 82% | 36,230 psi | 59% | 2293 fps | 95.5% |
| Lovex S071 | <<locked>> | 96% | 33,402 psi | 55% | 2280 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 47,688 psi | 78% | 2451 fps | 100% |
| Norma 202 | <<locked>> | 80% | 47,979 psi | 79% | 2451 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,526 psi | 71% | 2438 fps | 99.9% |
| Norma 204 | <<locked>> | 90% | 44,454 psi | 73% | 2487 fps | 95.7% |
| Norma MRP | <<locked>> | 92% | 36,854 psi | 61% | 2434 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 32,242 psi | 53% | 2257 fps | 96.8% |
| Ramshot Big Game | <<locked>> | 80% | 43,366 psi | 71% | 2454 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 82% | 33,417 psi | 55% | 2293 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 50,560 psi | 83% | 2516 fps | 99.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 50,328 psi | 83% | 2533 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,296 psi | 45% | 1430 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 42,076 psi | 69% | 2388 fps | 97.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 47,181 psi | 77% | 2549 fps | 99.9% |
| ReloadSwiss RS 60 | 71.7 gr | 80% | 38,087 psi | 63% | 2434 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 31,618 psi | 52% | 2270 fps | 96.4% |
| ReloadSwiss RS 70 | 72.8 gr | 80% | 31,473 psi | 52% | 2274 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 51,677 psi | 85% | 2474 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 45,382 psi | 75% | 2408 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 38,798 psi | 64% | 2349 fps | 99.7% |
| Rottweil R 904 | <<locked>> | 96% | 48,457 psi | 80% | 2520 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 94% | 41,843 psi | 69% | 2464 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 82% | 39,291 psi | 65% | 2326 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 35,882 psi | 59% | 2264 fps | 96.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 48,196 psi | 79% | 2477 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 43,511 psi | 71% | 2395 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 36,230 psi | 59% | 2293 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,755 psi | 65% | 2395 fps | 99.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 49,052 psi | 81% | 2497 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 47,065 psi | 77% | 2474 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,704 psi | 80% | 2392 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,814 psi | 67% | 2277 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 37,304 psi | 61% | 2257 fps | 95.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 41,466 psi | 68% | 2461 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 48,472 psi | 80% | 2395 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 48,718 psi | 80% | 2487 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 39,508 psi | 65% | 2352 fps | 99.7% |
| Somchem S365 | <<locked>> | 80% | 28,979 psi | 48% | 2218 fps | 98.8% |
| Somchem S385 | <<locked>> | 92% | 39,929 psi | 66% | 2402 fps | 95.8% |
| Vihtavuori N133 | <<locked>> | 80% | 49,153 psi | 81% | 2379 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 45,121 psi | 74% | 2379 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,527 psi | 75% | 2392 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,521 psi | 62% | 2290 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 33,504 psi | 55% | 2257 fps | 97.1% |
| Vihtavuori N165 | <<locked>> | 96% | 39,146 psi | 64% | 2375 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 50,952 psi | 84% | 2493 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 43,830 psi | 72% | 2385 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 33,040 psi | 54% | 2260 fps | 96.8% |
| Vihtavuori N555 | <<locked>> | 82% | 26,629 psi | 44% | 2165 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,040 psi | 54% | 2234 fps | 98.9% |
| Winchester 748 | <<locked>> | 80% | 50,937 psi | 84% | 2539 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 36,666 psi | 60% | 2356 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 86% | 24,729 psi | 41% | 2165 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,775 psi | 77% | 2480 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 42,279 psi | 69% | 2434 fps | 95.1% |
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 104 powders for .375 Blaser Mag. loaded with the .375 | 300gr | Hornady FMJ RN. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,710 fps; across all powders the maximum-charge window runs from 1,565 fps to 2,710 fps. Accurate 3100 gives the best case fill at 100 %, and 104 of the 104 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 59–90 %, 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, Accurate High Country, ADI AR 2209 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, ReloadSwiss RS 70, Alliant Reloder-16 rank at the top here: for .375 Blaser Mag. with the .375 | 300gr | Hornady FMJ RN 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.