Load Specifications
Bullet Manufacturer:Lehigh Defense
Bullet Weight:250 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:1:16.5
Load data in caliber .375 Blaser Mag. with .375 | 250gr | Lehigh Defense Controlled Fracturing bullet and 101 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 ReloadSwiss RS 52.
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 2015 | <<locked>> | 86% | 52,605 psi | 86% | 2684 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 54,520 psi | 90% | 2756 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 53,534 psi | 88% | 2746 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 54,578 psi | 90% | 2805 fps | 100% |
| Accurate 4064 | <<locked>> | 94% | 53,432 psi | 88% | 2789 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 49,385 psi | 81% | 2808 fps | 98.8% |
| ADI AR 2206H | <<locked>> | 88% | 51,837 psi | 85% | 2779 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 94% | 52,910 psi | 87% | 2776 fps | 99.5% |
| ADI Benchmark 8208 | <<locked>> | 88% | 54,476 psi | 89% | 2782 fps | 100% |
| Alliant AR-Comp | <<locked>> | 88% | 54,636 psi | 90% | 2759 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 52,547 psi | 86% | 2835 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 54,795 psi | 90% | 2943 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 52,243 psi | 86% | 2795 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 52,605 psi | 86% | 2690 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 53,011 psi | 87% | 2815 fps | 99.6% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 48,588 psi | 80% | 2815 fps | 98.9% |
| Alliant Reloder-17 | <<locked>> | 98% | 52,808 psi | 87% | 2913 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 34,156 psi | 56% | 2543 fps | 96.7% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 54,752 psi | 90% | 2674 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 51,576 psi | 85% | 2792 fps | 99.1% |
| Bofors RP3 | <<locked>> | 94% | 52,388 psi | 86% | 2808 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 53,272 psi | 87% | 2772 fps | 96.4% |
| Hodgdon Benchmark | <<locked>> | 86% | 53,301 psi | 88% | 2723 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 53,417 psi | 88% | 2812 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 51,692 psi | 85% | 2854 fps | 99.5% |
| Hodgdon H322 | <<locked>> | 86% | 54,331 psi | 89% | 2766 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 54,012 psi | 89% | 2822 fps | 99% |
| Hodgdon H414 | <<locked>> | 98% | 54,781 psi | 90% | 2890 fps | 97.5% |
| Hodgdon H4895 | <<locked>> | 88% | 52,344 psi | 86% | 2789 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 44,672 psi | 73% | 2697 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 54,694 psi | 90% | 2871 fps | 100% |
| Hodgdon Superformanceᴾ | <<locked>> | 100% | 54,389 psi | 89% | 2900 fps | 96.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,838 psi | 57% | 1686 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 52,518 psi | 86% | 2772 fps | 99.9% |
| IMR 3031 | <<locked>> | 92% | 53,461 psi | 88% | 2799 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 54,694 psi | 90% | 2795 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 96% | 54,679 psi | 90% | 2766 fps | 97.2% |
| IMR 4198 | <<locked>> | 82% | 53,098 psi | 87% | 2654 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 49,922 psi | 82% | 2743 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 96% | 52,185 psi | 86% | 2759 fps | 96.7% |
| IMR 4831ᴾ | <<locked>> | 100% | 41,553 psi | 68% | 2651 fps | 97.4% |
| IMR 4895 | <<locked>> | 92% | 54,346 psi | 89% | 2848 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 88% | 54,476 psi | 89% | 2782 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 54,462 psi | 89% | 2769 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 54,375 psi | 89% | 2802 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 52,011 psi | 85% | 2710 fps | 99.7% |
| Lovex S062 | <<locked>> | 92% | 51,692 psi | 85% | 2753 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 54,259 psi | 89% | 2799 fps | 98.4% |
| Lovex S070ᴾ | <<locked>> | 100% | 51,576 psi | 85% | 2779 fps | 97% |
| Norma 201 | <<locked>> | 90% | 53,693 psi | 88% | 2772 fps | 100% |
| Norma 202 | <<locked>> | 90% | 54,273 psi | 89% | 2776 fps | 100% |
| Norma 203B | <<locked>> | 92% | 52,112 psi | 86% | 2805 fps | 99.7% |
| Norma URPᴾ | <<locked>> | 100% | 49,168 psi | 81% | 2802 fps | 98.7% |
| Ramshot Big Game | <<locked>> | 92% | 52,605 psi | 86% | 2828 fps | 99.7% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 48,298 psi | 79% | 2792 fps | 97% |
| Ramshot TAC | <<locked>> | 88% | 54,940 psi | 90% | 2802 fps | 98.6% |
| Ramshot Wild Boar | <<locked>> | 88% | 54,215 psi | 89% | 2818 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 84% | 52,185 psi | 86% | 2736 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,085 psi | 58% | 1726 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 54,027 psi | 89% | 2766 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 54,549 psi | 90% | 2805 fps | 97.8% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 53,113 psi | 87% | 2881 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 52,605 psi | 86% | 2913 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 49,023 psi | 80% | 2828 fps | 98.6% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 49,966 psi | 82% | 2854 fps | 98.3% |
| Rottweil R 901 | <<locked>> | 88% | 54,549 psi | 90% | 2756 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 54,230 psi | 89% | 2772 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 52,257 psi | 86% | 2799 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 98% | 53,272 psi | 87% | 2772 fps | 96.4% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 54,259 psi | 89% | 2799 fps | 98.4% |
| Shooters World Match Rifle | <<locked>> | 90% | 54,375 psi | 89% | 2802 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 51,692 psi | 85% | 2753 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 51,576 psi | 85% | 2779 fps | 97% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 53,882 psi | 88% | 2740 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 54,259 psi | 89% | 2861 fps | 99.8% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 53,548 psi | 88% | 2713 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 52,881 psi | 87% | 2772 fps | 98.7% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 53,664 psi | 88% | 2802 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 52,533 psi | 86% | 2674 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 52,344 psi | 86% | 2671 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 55,013 psi | 90% | 2753 fps | 97.2% |
| Somchem S321 | <<locked>> | 84% | 52,098 psi | 86% | 2766 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 54,853 psi | 90% | 2713 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 52,649 psi | 86% | 2769 fps | 99.7% |
| Somchem S355 | <<locked>> | 96% | 52,866 psi | 87% | 2799 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,598 psi | 72% | 2749 fps | 99.9% |
| Unknown powderᴾ | <<locked>> | 100% | 53,954 psi | 89% | 2864 fps | 98.9% |
| Vihtavuori N130 | <<locked>> | 84% | 52,475 psi | 86% | 2641 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 52,649 psi | 86% | 2661 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 53,664 psi | 88% | 2740 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 54,955 psi | 90% | 2756 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 54,476 psi | 89% | 2779 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 51,837 psi | 85% | 2802 fps | 99% |
| Vihtavuori N530 | <<locked>> | 88% | 55,056 psi | 90% | 2785 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 53,084 psi | 87% | 2756 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 50,763 psi | 83% | 2805 fps | 98.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 36,303 psi | 60% | 2612 fps | 96.6% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 52,750 psi | 87% | 2789 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 51,561 psi | 85% | 2789 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 54,781 psi | 90% | 2890 fps | 97.5% |
| Winchester StaBALL Match | <<locked>> | 84% | 54,969 psi | 90% | 2831 fps | 100% |
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 2015 | <<locked>> | 80% | 43,642 psi | 72% | 2552 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 47,558 psi | 78% | 2657 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 35,679 psi | 59% | 2464 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 41,249 psi | 68% | 2598 fps | 99.9% |
| Accurate 4064 | <<locked>> | 80% | 33,750 psi | 55% | 2451 fps | 99.6% |
| Accurate 4350 | <<locked>> | 90% | 34,592 psi | 57% | 2526 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 40,176 psi | 66% | 2569 fps | 98.1% |
| ADI AR 2208 | <<locked>> | 80% | 34,127 psi | 56% | 2421 fps | 95.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 42,293 psi | 69% | 2585 fps | 99.3% |
| Alliant AR-Comp | <<locked>> | 80% | 41,713 psi | 68% | 2575 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 49,255 psi | 81% | 2782 fps | 99.7% |
| Alliant Power Pro 2000-MR | 70.8 gr | 80% | 36,230 psi | 59% | 2582 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,330 psi | 55% | 2441 fps | 97.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 49,342 psi | 81% | 2644 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 35,998 psi | 59% | 2500 fps | 96.5% |
| Alliant Reloder-16 | <<locked>> | 90% | 35,578 psi | 58% | 2543 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 82% | 30,734 psi | 50% | 2448 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 98% | 31,995 psi | 53% | 2484 fps | 95.7% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 51,343 psi | 84% | 2628 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,117 psi | 64% | 2569 fps | 96.8% |
| Bofors RP3 | <<locked>> | 80% | 32,518 psi | 53% | 2434 fps | 97.1% |
| Bofors RP7 | <<locked>> | 96% | 50,096 psi | 82% | 2723 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 44,121 psi | 72% | 2575 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,495 psi | 66% | 2598 fps | 99.4% |
| Hodgdon CFE223 | <<locked>> | 80% | 44,773 psi | 74% | 2736 fps | 98.6% |
| Hodgdon H322 | <<locked>> | 80% | 44,817 psi | 74% | 2625 fps | 100% |
| Hodgdon H380 | <<locked>> | 82% | 36,027 psi | 59% | 2493 fps | 95% |
| Hodgdon H414 | <<locked>> | 92% | 44,483 psi | 73% | 2717 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 40,524 psi | 67% | 2582 fps | 98.6% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 30,342 psi | 50% | 2385 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 34,200 psi | 56% | 2497 fps | 97.5% |
| Hodgdon Superformance | <<locked>> | 98% | 50,589 psi | 83% | 2838 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,817 psi | 42% | 1506 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 36,085 psi | 59% | 2474 fps | 97.5% |
| IMR 3031 | <<locked>> | 80% | 36,260 psi | 60% | 2516 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 33,402 psi | 55% | 2398 fps | 95.6% |
| IMR 4166 Enduron | <<locked>> | 90% | 45,614 psi | 75% | 2615 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 50,024 psi | 82% | 2612 fps | 100% |
| IMR 4350 | <<locked>> | 98% | 46,992 psi | 77% | 2694 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 92% | 46,093 psi | 76% | 2654 fps | 95.3% |
| IMR 4831 | <<locked>> | 94% | 34,360 psi | 56% | 2503 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 36,854 psi | 61% | 2533 fps | 97.4% |
| IMR 8208 XBR | <<locked>> | 80% | 42,293 psi | 69% | 2585 fps | 99.3% |
| Lovex D073.5 | <<locked>> | 80% | 47,326 psi | 78% | 2664 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 38,609 psi | 63% | 2549 fps | 99.7% |
| Lovex S060 | <<locked>> | 80% | 40,785 psi | 67% | 2516 fps | 98.2% |
| Lovex S062 | <<locked>> | 80% | 35,505 psi | 58% | 2461 fps | 98.2% |
| Lovex S065 | <<locked>> | 90% | 39,639 psi | 65% | 2543 fps | 95.2% |
| Lovex S070 | <<locked>> | 96% | 45,382 psi | 75% | 2674 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 39,131 psi | 64% | 2523 fps | 98.9% |
| Norma 202 | <<locked>> | 80% | 39,479 psi | 65% | 2539 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 35,346 psi | 58% | 2490 fps | 96.9% |
| Norma URP | <<locked>> | 90% | 35,404 psi | 58% | 2533 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 34,809 psi | 57% | 2497 fps | 96.4% |
| Ramshot Hunter | <<locked>> | 96% | 42,264 psi | 69% | 2680 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 42,206 psi | 69% | 2582 fps | 96.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,321 psi | 68% | 2602 fps | 98.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 45,643 psi | 75% | 2628 fps | 98.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,991 psi | 43% | 1542 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 47,529 psi | 78% | 2667 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 41,901 psi | 69% | 2585 fps | 95% |
| ReloadSwiss RS 52 | 68.6 gr | 80% | 37,231 psi | 61% | 2592 fps | 96.8% |
| ReloadSwiss RS 60 | 69.7 gr | 80% | 30,589 psi | 50% | 2457 fps | 97.9% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 37,130 psi | 61% | 2602 fps | 95.7% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 40,611 psi | 67% | 2674 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 42,801 psi | 70% | 2569 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 37,260 psi | 61% | 2477 fps | 98.5% |
| Rottweil R 903 | <<locked>> | 80% | 30,487 psi | 50% | 2379 fps | 95.9% |
| Rottweil R 907 | <<locked>> | 96% | 50,096 psi | 82% | 2723 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 90% | 39,639 psi | 65% | 2543 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,609 psi | 63% | 2549 fps | 99.7% |
| Shooters World Precision | <<locked>> | 80% | 35,505 psi | 58% | 2461 fps | 98.2% |
| Shooters World SW4350 | <<locked>> | 96% | 45,382 psi | 75% | 2674 fps | 95.5% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 50,198 psi | 82% | 2684 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 31,807 psi | 52% | 2428 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 50,241 psi | 82% | 2667 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 40,045 psi | 66% | 2549 fps | 96.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,653 psi | 63% | 2539 fps | 97.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,843 psi | 67% | 2487 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,605 psi | 55% | 2356 fps | 99.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 44,875 psi | 74% | 2598 fps | 95.1% |
| Somchem S321 | <<locked>> | 80% | 45,368 psi | 74% | 2657 fps | 99.8% |
| Somchem S335 | <<locked>> | 80% | 40,321 psi | 66% | 2490 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 39,856 psi | 65% | 2552 fps | 97.9% |
| Somchem S355 | <<locked>> | 80% | 31,647 psi | 52% | 2392 fps | 96.1% |
| Somchem S365 | <<locked>> | 86% | 27,630 psi | 45% | 2369 fps | 95.6% |
| Unknown powder | <<locked>> | 90% | 38,841 psi | 64% | 2595 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 46,325 psi | 76% | 2552 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 41,104 psi | 67% | 2487 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,361 psi | 60% | 2467 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,246 psi | 61% | 2474 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 30,008 psi | 49% | 2333 fps | 97% |
| Vihtavuori N160 | <<locked>> | 90% | 37,173 psi | 61% | 2536 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 42,177 psi | 69% | 2579 fps | 99.3% |
| Vihtavuori N540 | <<locked>> | 80% | 35,824 psi | 59% | 2464 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 90% | 36,361 psi | 60% | 2536 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 98% | 34,026 psi | 56% | 2559 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 30,763 psi | 51% | 2359 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 44,730 psi | 73% | 2680 fps | 99.9% |
| Winchester 760 | <<locked>> | 92% | 44,483 psi | 73% | 2717 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 47,485 psi | 78% | 2717 fps | 99.6% |
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 101 powders for .375 Blaser Mag. loaded with the .375 | 250gr | Lehigh Defense Controlled Fracturing. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,943 fps; across all powders the maximum-charge window runs from 1,686 fps to 2,943 fps. Accurate 4350 gives the best case fill at 100 %, and 101 of the 101 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 250.0 gr projectile in 0.375" calls for a 1:16.5 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, ReloadSwiss RS 52 rank at the top here: for .375 Blaser Mag. with the .375 | 250gr | Lehigh Defense Controlled Fracturing 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.