Load Specifications
Bullet Manufacturer:Hammer
Bullet Weight:248 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:1:15.5
Load data in caliber .375 Blaser Mag. with .375 | 248gr | Hammer Hammer Hunter 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 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: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 86% | 53,171 psi | 87% | 2690 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 55,013 psi | 90% | 2762 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 54,462 psi | 89% | 2756 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 53,055 psi | 87% | 2776 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 54,607 psi | 90% | 2746 fps | 96.1% |
| Accurate 4064 | <<locked>> | 94% | 54,201 psi | 89% | 2799 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 49,777 psi | 82% | 2815 fps | 98.7% |
| ADI AR 2206H | <<locked>> | 88% | 52,156 psi | 86% | 2782 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 94% | 53,127 psi | 87% | 2779 fps | 99.4% |
| ADI Benchmark 8208 | <<locked>> | 88% | 54,708 psi | 90% | 2789 fps | 100% |
| Alliant AR-Comp | <<locked>> | 88% | 55,027 psi | 90% | 2766 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 52,939 psi | 87% | 2841 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 54,868 psi | 90% | 2946 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 52,649 psi | 86% | 2802 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 82% | 53,011 psi | 87% | 2697 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 53,345 psi | 88% | 2822 fps | 99.5% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 48,733 psi | 80% | 2818 fps | 98.8% |
| Alliant Reloder-17 | <<locked>> | 98% | 52,997 psi | 87% | 2913 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 34,577 psi | 57% | 2549 fps | 96.6% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 54,882 psi | 90% | 2677 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 51,663 psi | 85% | 2792 fps | 99% |
| Bofors RP3 | <<locked>> | 94% | 52,939 psi | 87% | 2815 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 53,563 psi | 88% | 2776 fps | 96.2% |
| Hodgdon Benchmark | <<locked>> | 86% | 53,476 psi | 88% | 2726 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 53,664 psi | 88% | 2818 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 51,851 psi | 85% | 2858 fps | 99.4% |
| Hodgdon H322 | <<locked>> | 82% | 51,938 psi | 85% | 2736 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 52,895 psi | 87% | 2762 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 54,215 psi | 89% | 2825 fps | 98.9% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 53,069 psi | 87% | 2864 fps | 97% |
| Hodgdon H4895 | <<locked>> | 88% | 52,605 psi | 86% | 2795 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 44,933 psi | 74% | 2700 fps | 99.2% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 54,955 psi | 90% | 2874 fps | 100% |
| Hodgdon Superformanceᴾ | <<locked>> | 100% | 54,462 psi | 89% | 2900 fps | 96.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,012 psi | 57% | 1690 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 53,925 psi | 89% | 2795 fps | 99.9% |
| IMR 3031 | <<locked>> | 88% | 52,141 psi | 86% | 2782 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 52,634 psi | 86% | 2762 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 90% | 53,113 psi | 87% | 2740 fps | 96.7% |
| IMR 4198 | <<locked>> | 82% | 53,185 psi | 87% | 2657 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 96% | 52,301 psi | 86% | 2759 fps | 96.5% |
| IMR 4831ᴾ | <<locked>> | 100% | 47,253 psi | 78% | 2753 fps | 98.4% |
| IMR 4895 | <<locked>> | 92% | 54,665 psi | 90% | 2854 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 88% | 54,708 psi | 90% | 2789 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 55,027 psi | 90% | 2776 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 54,853 psi | 90% | 2808 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 52,214 psi | 86% | 2713 fps | 99.6% |
| Lovex S062 | <<locked>> | 92% | 52,112 psi | 86% | 2762 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 54,578 psi | 90% | 2802 fps | 98.3% |
| Lovex S070ᴾ | <<locked>> | 100% | 51,895 psi | 85% | 2782 fps | 96.8% |
| Norma 201 | <<locked>> | 90% | 54,143 psi | 89% | 2779 fps | 100% |
| Norma 202 | <<locked>> | 90% | 54,578 psi | 90% | 2782 fps | 100% |
| Norma 203B | <<locked>> | 92% | 52,504 psi | 86% | 2808 fps | 99.7% |
| Norma URPᴾ | <<locked>> | 100% | 49,342 psi | 81% | 2805 fps | 98.6% |
| Ramshot Big Game | <<locked>> | 92% | 52,707 psi | 87% | 2831 fps | 99.6% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 48,588 psi | 80% | 2795 fps | 96.9% |
| Ramshot TAC | <<locked>> | 86% | 51,721 psi | 85% | 2749 fps | 98% |
| Ramshot Wild Boar | <<locked>> | 88% | 54,520 psi | 90% | 2825 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 84% | 52,475 psi | 86% | 2740 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,317 psi | 58% | 1729 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 54,389 psi | 89% | 2772 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 54,694 psi | 90% | 2805 fps | 97.7% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 53,374 psi | 88% | 2887 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 52,736 psi | 87% | 2917 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 49,298 psi | 81% | 2831 fps | 98.5% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 50,038 psi | 82% | 2854 fps | 98.1% |
| Rottweil R 901 | <<locked>> | 86% | 52,098 psi | 86% | 2717 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 54,679 psi | 90% | 2776 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 52,591 psi | 86% | 2802 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 98% | 53,563 psi | 88% | 2776 fps | 96.2% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 54,578 psi | 90% | 2802 fps | 98.3% |
| Shooters World Match Rifle | <<locked>> | 90% | 54,853 psi | 90% | 2808 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 52,112 psi | 86% | 2762 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 51,895 psi | 85% | 2782 fps | 96.8% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 54,099 psi | 89% | 2743 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 54,549 psi | 90% | 2867 fps | 99.8% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 53,766 psi | 88% | 2717 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 53,359 psi | 88% | 2779 fps | 98.6% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 53,983 psi | 89% | 2805 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 52,939 psi | 87% | 2677 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 52,562 psi | 86% | 2674 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 51,648 psi | 85% | 2703 fps | 96.4% |
| Somchem S321 | <<locked>> | 84% | 52,431 psi | 86% | 2772 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 52,011 psi | 85% | 2677 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 52,750 psi | 87% | 2772 fps | 99.6% |
| Somchem S355 | <<locked>> | 96% | 53,345 psi | 88% | 2805 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,961 psi | 72% | 2753 fps | 99.8% |
| Vihtavuori N130 | <<locked>> | 84% | 52,852 psi | 87% | 2648 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 52,997 psi | 87% | 2667 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 54,012 psi | 89% | 2743 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 51,924 psi | 85% | 2717 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 54,853 psi | 90% | 2785 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 52,025 psi | 85% | 2805 fps | 98.9% |
| Vihtavuori N530 | <<locked>> | 86% | 51,721 psi | 85% | 2736 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 53,214 psi | 87% | 2759 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 51,053 psi | 84% | 2812 fps | 98.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 36,912 psi | 61% | 2625 fps | 96.6% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 52,808 psi | 87% | 2789 fps | 99.9% |
| Winchester 748 | <<locked>> | 88% | 54,766 psi | 90% | 2835 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 53,258 psi | 87% | 2867 fps | 97% |
| Winchester StaBALL Match | <<locked>> | 90% | 53,635 psi | 88% | 2815 fps | 99.9% |
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% | 44,208 psi | 73% | 2559 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 48,080 psi | 79% | 2664 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 36,695 psi | 60% | 2480 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 43,221 psi | 71% | 2621 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 51,184 psi | 84% | 2694 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 34,722 psi | 57% | 2467 fps | 99.7% |
| Accurate 4350 | <<locked>> | 90% | 35,172 psi | 58% | 2539 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 40,509 psi | 67% | 2575 fps | 98% |
| ADI AR 2208 | <<locked>> | 80% | 34,563 psi | 57% | 2428 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 42,540 psi | 70% | 2589 fps | 99.2% |
| Alliant AR-Comp | <<locked>> | 80% | 42,105 psi | 69% | 2585 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 49,472 psi | 81% | 2785 fps | 99.7% |
| Alliant Power Pro 2000-MR | 70 gr | 80% | 36,550 psi | 60% | 2585 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,852 psi | 56% | 2451 fps | 97.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 49,792 psi | 82% | 2654 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,376 psi | 60% | 2507 fps | 96.4% |
| Alliant Reloder-16 | <<locked>> | 90% | 35,955 psi | 59% | 2549 fps | 95.3% |
| Alliant Reloder-17 | 70.7 gr | 82% | 31,227 psi | 51% | 2457 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 98% | 32,576 psi | 53% | 2497 fps | 95.7% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 51,459 psi | 84% | 2631 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,465 psi | 65% | 2572 fps | 96.7% |
| Bofors RP3 | <<locked>> | 80% | 33,272 psi | 55% | 2451 fps | 97.1% |
| Bofors RP7 | <<locked>> | 96% | 50,357 psi | 83% | 2726 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 44,483 psi | 73% | 2582 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,944 psi | 67% | 2605 fps | 99.4% |
| Hodgdon CFE223 | <<locked>> | 80% | 45,020 psi | 74% | 2740 fps | 98.5% |
| Hodgdon H322 | <<locked>> | 80% | 48,718 psi | 80% | 2687 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 49,356 psi | 81% | 2710 fps | 100% |
| Hodgdon H380 | <<locked>> | 84% | 39,044 psi | 64% | 2556 fps | 95.8% |
| Hodgdon H414 | <<locked>> | 96% | 46,485 psi | 76% | 2753 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 40,857 psi | 67% | 2589 fps | 98.5% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 30,908 psi | 51% | 2398 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,782 psi | 60% | 2556 fps | 98.1% |
| Hodgdon Superformance | <<locked>> | 98% | 50,734 psi | 83% | 2838 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,092 psi | 43% | 1509 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,320 psi | 65% | 2539 fps | 98.2% |
| IMR 3031 | <<locked>> | 80% | 40,045 psi | 66% | 2589 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,245 psi | 60% | 2461 fps | 96.4% |
| IMR 4166 Enduron | <<locked>> | 86% | 46,934 psi | 77% | 2638 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 50,111 psi | 82% | 2615 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 92% | 46,369 psi | 76% | 2657 fps | 95.1% |
| IMR 4831 | <<locked>> | 92% | 36,419 psi | 60% | 2546 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 37,231 psi | 61% | 2539 fps | 97.3% |
| IMR 8208 XBR | <<locked>> | 80% | 42,540 psi | 70% | 2589 fps | 99.2% |
| Lovex D073.5 | <<locked>> | 80% | 47,863 psi | 79% | 2671 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 39,160 psi | 64% | 2556 fps | 99.7% |
| Lovex S060 | <<locked>> | 80% | 41,176 psi | 68% | 2523 fps | 98.1% |
| Lovex S062 | <<locked>> | 80% | 36,085 psi | 59% | 2470 fps | 98.1% |
| Lovex S065 | <<locked>> | 90% | 40,132 psi | 66% | 2549 fps | 95.1% |
| Lovex S070 | <<locked>> | 96% | 45,774 psi | 75% | 2677 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 39,769 psi | 65% | 2533 fps | 98.9% |
| Norma 202 | <<locked>> | 80% | 39,972 psi | 66% | 2546 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 35,766 psi | 59% | 2497 fps | 96.8% |
| Norma URP | <<locked>> | 90% | 35,853 psi | 59% | 2543 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 35,172 psi | 58% | 2503 fps | 96.3% |
| Ramshot Hunter | <<locked>> | 96% | 42,728 psi | 70% | 2687 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 42,554 psi | 70% | 2589 fps | 96% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,669 psi | 68% | 2605 fps | 98.2% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,108 psi | 76% | 2635 fps | 98.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,310 psi | 43% | 1545 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 47,776 psi | 78% | 2671 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 45,136 psi | 74% | 2648 fps | 95.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 37,739 psi | 62% | 2602 fps | 96.8% |
| ReloadSwiss RS 60 | 69 gr | 80% | 31,154 psi | 51% | 2470 fps | 97.9% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 37,565 psi | 62% | 2608 fps | 95.6% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 40,973 psi | 67% | 2677 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 43,743 psi | 72% | 2582 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 37,927 psi | 62% | 2487 fps | 98.5% |
| Rottweil R 903 | <<locked>> | 80% | 31,183 psi | 51% | 2392 fps | 96% |
| Rottweil R 907 | <<locked>> | 96% | 50,357 psi | 83% | 2726 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 90% | 40,132 psi | 66% | 2549 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,160 psi | 64% | 2556 fps | 99.7% |
| Shooters World Precision | <<locked>> | 80% | 36,085 psi | 59% | 2470 fps | 98.1% |
| Shooters World SW4350 | <<locked>> | 96% | 45,774 psi | 75% | 2677 fps | 95.4% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 50,473 psi | 83% | 2687 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 32,329 psi | 53% | 2441 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 50,633 psi | 83% | 2674 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 40,509 psi | 67% | 2556 fps | 96.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,102 psi | 64% | 2546 fps | 97.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,394 psi | 68% | 2497 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,185 psi | 56% | 2365 fps | 99.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 48,428 psi | 80% | 2654 fps | 95.7% |
| Somchem S321 | <<locked>> | 80% | 45,774 psi | 75% | 2664 fps | 99.7% |
| Somchem S335 | <<locked>> | 80% | 40,886 psi | 67% | 2500 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 40,190 psi | 66% | 2556 fps | 97.8% |
| Somchem S355 | <<locked>> | 80% | 32,256 psi | 53% | 2405 fps | 96.1% |
| Somchem S365 | <<locked>> | 86% | 28,166 psi | 46% | 2382 fps | 95.7% |
| Vihtavuori N130 | <<locked>> | 80% | 46,876 psi | 77% | 2562 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 41,582 psi | 68% | 2493 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 37,043 psi | 61% | 2477 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,724 psi | 62% | 2480 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 30,589 psi | 50% | 2343 fps | 97% |
| Vihtavuori N160 | <<locked>> | 90% | 37,594 psi | 62% | 2543 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 42,656 psi | 70% | 2585 fps | 99.3% |
| Vihtavuori N540 | <<locked>> | 80% | 36,347 psi | 60% | 2470 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 90% | 36,854 psi | 61% | 2546 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 98% | 34,664 psi | 57% | 2572 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 31,241 psi | 51% | 2369 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 41,756 psi | 69% | 2625 fps | 99.6% |
| Winchester 760 | <<locked>> | 96% | 46,644 psi | 77% | 2756 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,305 psi | 63% | 2546 fps | 98% |
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 | 248gr | Hammer Hammer Hunter. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,946 fps; across all powders the maximum-charge window runs from 1,690 fps to 2,946 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 57–90 %, leaving at least 10 % headroom. The 248.0 gr projectile in 0.375" calls for a 1:15.5 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, Alliant Reloder-17 rank at the top here: for .375 Blaser Mag. with the .375 | 248gr | Hammer Hammer Hunter 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.