Load Specifications
Load data in caliber .375 Blaser Mag. with .376 | 236gr | Peregrine VLR-5 bullet and 98 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 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.
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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>> | 88% | 54,694 psi | 90% | 2799 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 53,011 psi | 87% | 2822 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 51,808 psi | 85% | 2808 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 52,750 psi | 87% | 2867 fps | 100% |
| Accurate 4064 | <<locked>> | 94% | 51,605 psi | 85% | 2851 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 47,485 psi | 78% | 2854 fps | 98.1% |
| Accurate LT-30 | <<locked>> | 82% | 54,404 psi | 89% | 2746 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 54,839 psi | 90% | 2772 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 53,795 psi | 88% | 2890 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 96% | 54,824 psi | 90% | 2887 fps | 99.4% |
| ADI Benchmark 8208 | <<locked>> | 88% | 53,084 psi | 87% | 2848 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 88% | 53,011 psi | 87% | 2828 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 54,549 psi | 90% | 2953 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 53,156 psi | 87% | 3002 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 53,998 psi | 89% | 2907 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 84% | 54,462 psi | 89% | 2805 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 54,998 psi | 90% | 2930 fps | 99.5% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 47,123 psi | 77% | 2867 fps | 98.2% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 54,882 psi | 90% | 3025 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 53,505 psi | 88% | 2740 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 53,606 psi | 88% | 2904 fps | 99.1% |
| Bofors RP3 | <<locked>> | 96% | 54,302 psi | 89% | 2920 fps | 100% |
| Hodgdon Benchmark | <<locked>> | 86% | 51,909 psi | 85% | 2785 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 51,721 psi | 85% | 2874 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 53,780 psi | 88% | 2969 fps | 99.4% |
| Hodgdon H322 | <<locked>> | 86% | 53,040 psi | 87% | 2838 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 54,244 psi | 89% | 2864 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 52,402 psi | 86% | 2877 fps | 98.4% |
| Hodgdon H414 | <<locked>> | 98% | 53,040 psi | 87% | 2943 fps | 96.6% |
| Hodgdon H4895 | <<locked>> | 90% | 54,259 psi | 89% | 2904 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 43,221 psi | 71% | 2749 fps | 98.7% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 53,040 psi | 87% | 2930 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,664 psi | 57% | 1742 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 54,505 psi | 89% | 2887 fps | 99.8% |
| IMR 3031 | <<locked>> | 92% | 51,880 psi | 85% | 2864 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 53,388 psi | 88% | 2858 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 96% | 53,272 psi | 87% | 2822 fps | 96.4% |
| IMR 4198 | <<locked>> | 84% | 55,013 psi | 90% | 2766 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 98% | 54,143 psi | 89% | 2867 fps | 96.5% |
| IMR 4831ᴾ | <<locked>> | 100% | 40,292 psi | 66% | 2703 fps | 96.5% |
| IMR 4895 | <<locked>> | 92% | 52,852 psi | 87% | 2910 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 88% | 53,084 psi | 87% | 2848 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 84% | 52,852 psi | 87% | 2831 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 52,750 psi | 87% | 2867 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 53,940 psi | 89% | 2822 fps | 99.6% |
| Lovex S062 | <<locked>> | 94% | 53,606 psi | 88% | 2864 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 52,707 psi | 87% | 2854 fps | 97.7% |
| Lovex S070ᴾ | <<locked>> | 100% | 49,980 psi | 82% | 2831 fps | 96.1% |
| Norma 201 | <<locked>> | 90% | 52,272 psi | 86% | 2835 fps | 99.9% |
| Norma 202 | <<locked>> | 90% | 52,765 psi | 87% | 2841 fps | 100% |
| Norma 203B | <<locked>> | 94% | 54,085 psi | 89% | 2917 fps | 99.7% |
| Norma URPᴾ | <<locked>> | 100% | 47,427 psi | 78% | 2854 fps | 98% |
| Ramshot Big Game | <<locked>> | 94% | 54,520 psi | 90% | 2943 fps | 99.6% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 46,804 psi | 77% | 2841 fps | 96% |
| Ramshot TAC | <<locked>> | 88% | 53,548 psi | 88% | 2858 fps | 98% |
| Ramshot Wild Boar | <<locked>> | 88% | 52,765 psi | 87% | 2881 fps | 99.5% |
| Ramshot X-Terminator | <<locked>> | 86% | 54,302 psi | 89% | 2851 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,867 psi | 57% | 1781 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 52,692 psi | 87% | 2831 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 53,156 psi | 87% | 2861 fps | 97.1% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 55,056 psi | 90% | 2995 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 54,723 psi | 90% | 3031 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 47,384 psi | 78% | 2881 fps | 97.8% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 48,341 psi | 79% | 2900 fps | 97.4% |
| Rottweil R 901 | <<locked>> | 88% | 53,243 psi | 87% | 2822 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 52,765 psi | 87% | 2835 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 98% | 53,954 psi | 89% | 2907 fps | 99.9% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 52,707 psi | 87% | 2854 fps | 97.7% |
| Shooters World Match Rifle | <<locked>> | 90% | 52,750 psi | 87% | 2867 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 53,606 psi | 88% | 2864 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 49,980 psi | 82% | 2831 fps | 96.1% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 52,301 psi | 86% | 2799 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 52,649 psi | 86% | 2920 fps | 99.5% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 52,272 psi | 86% | 2782 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 51,416 psi | 84% | 2831 fps | 98.1% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 52,272 psi | 86% | 2861 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 54,462 psi | 89% | 2785 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 54,201 psi | 89% | 2779 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 53,301 psi | 88% | 2808 fps | 96.4% |
| Somchem S321 | <<locked>> | 86% | 54,114 psi | 89% | 2881 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 53,490 psi | 88% | 2782 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 54,766 psi | 90% | 2884 fps | 99.6% |
| Somchem S355 | <<locked>> | 98% | 54,621 psi | 90% | 2907 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 42,206 psi | 69% | 2802 fps | 99.6% |
| Unknown powderᴾ | <<locked>> | 100% | 52,127 psi | 86% | 2917 fps | 98.2% |
| Vihtavuori N130 | <<locked>> | 86% | 54,288 psi | 89% | 2749 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 54,491 psi | 89% | 2769 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 51,924 psi | 85% | 2802 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 53,330 psi | 88% | 2822 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 52,808 psi | 87% | 2838 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 50,067 psi | 82% | 2854 fps | 98.3% |
| Vihtavuori N530 | <<locked>> | 88% | 53,577 psi | 88% | 2844 fps | 100% |
| Vihtavuori N540 | <<locked>> | 94% | 55,013 psi | 90% | 2867 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 49,153 psi | 81% | 2858 fps | 98.1% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 51,329 psi | 84% | 2844 fps | 99.7% |
| Winchester 748 | <<locked>> | 86% | 53,563 psi | 88% | 2904 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 53,040 psi | 87% | 2943 fps | 96.6% |
| Winchester StaBALL Match | <<locked>> | 84% | 53,374 psi | 88% | 2894 fps | 99.8% |
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% | 42,366 psi | 70% | 2612 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 46,122 psi | 76% | 2717 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 34,505 psi | 57% | 2516 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 39,813 psi | 65% | 2651 fps | 99.6% |
| Accurate 4064 | <<locked>> | 80% | 32,677 psi | 54% | 2500 fps | 99.2% |
| Accurate 4350 | <<locked>> | 92% | 35,694 psi | 59% | 2625 fps | 95% |
| Accurate LT-30 | <<locked>> | 80% | 51,010 psi | 84% | 2697 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 51,401 psi | 84% | 2723 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 38,943 psi | 64% | 2621 fps | 97.3% |
| ADI AR 2208 | <<locked>> | 82% | 35,404 psi | 58% | 2523 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 41,031 psi | 67% | 2638 fps | 98.8% |
| Alliant AR-Comp | <<locked>> | 80% | 40,292 psi | 66% | 2638 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 47,659 psi | 78% | 2838 fps | 99.4% |
| Alliant Power Pro 2000-MR | 73.8 gr | 82% | 37,623 psi | 62% | 2687 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 32,198 psi | 53% | 2484 fps | 96.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 48,080 psi | 79% | 2713 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 34,795 psi | 57% | 2546 fps | 95.4% |
| Alliant Reloder-16 | <<locked>> | 92% | 36,709 psi | 60% | 2641 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 84% | 31,850 psi | 52% | 2546 fps | 95% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 50,154 psi | 82% | 2694 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 38,029 psi | 62% | 2618 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 31,430 psi | 52% | 2480 fps | 96.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 43,120 psi | 71% | 2635 fps | 99.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 39,160 psi | 64% | 2648 fps | 98.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 43,192 psi | 71% | 2785 fps | 97.9% |
| Hodgdon H322 | <<locked>> | 80% | 43,468 psi | 71% | 2684 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 50,676 psi | 83% | 2815 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 40,016 psi | 66% | 2654 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 96% | 49,429 psi | 81% | 2884 fps | 95.8% |
| Hodgdon H4895 | <<locked>> | 80% | 39,218 psi | 64% | 2631 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 31,357 psi | 51% | 2480 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 33,141 psi | 54% | 2543 fps | 96.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,672 psi | 42% | 1555 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 35,012 psi | 57% | 2520 fps | 96.6% |
| IMR 3031 | <<locked>> | 80% | 35,012 psi | 57% | 2569 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 34,592 psi | 57% | 2497 fps | 95.4% |
| IMR 4166 Enduron | <<locked>> | 92% | 47,297 psi | 78% | 2720 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 48,718 psi | 80% | 2677 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 94% | 47,718 psi | 78% | 2759 fps | 95% |
| IMR 4831 | <<locked>> | 98% | 37,637 psi | 62% | 2648 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 35,592 psi | 58% | 2579 fps | 96.4% |
| IMR 8208 XBR | <<locked>> | 80% | 41,031 psi | 67% | 2638 fps | 98.8% |
| Lovex D073.5 | <<locked>> | 80% | 46,035 psi | 76% | 2723 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 37,376 psi | 61% | 2598 fps | 99.3% |
| Lovex S060 | <<locked>> | 80% | 39,711 psi | 65% | 2569 fps | 97.5% |
| Lovex S062 | <<locked>> | 80% | 34,374 psi | 56% | 2507 fps | 97.4% |
| Lovex S065 | <<locked>> | 94% | 43,598 psi | 72% | 2697 fps | 95.7% |
| Lovex S070 | <<locked>> | 98% | 46,818 psi | 77% | 2776 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 38,116 psi | 63% | 2575 fps | 98.3% |
| Norma 202 | <<locked>> | 80% | 38,218 psi | 63% | 2592 fps | 99.7% |
| Norma 203B | <<locked>> | 80% | 34,171 psi | 56% | 2536 fps | 95.9% |
| Norma URP | <<locked>> | 92% | 36,492 psi | 60% | 2631 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 33,678 psi | 55% | 2543 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 98% | 43,729 psi | 72% | 2782 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 40,959 psi | 67% | 2631 fps | 95.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 40,190 psi | 66% | 2654 fps | 97.6% |
| Ramshot X-Terminator | <<locked>> | 80% | 44,556 psi | 73% | 2687 fps | 98.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,802 psi | 42% | 1591 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 46,282 psi | 76% | 2726 fps | 99.9% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 46,412 psi | 76% | 2746 fps | 95.6% |
| ReloadSwiss RS 52 | 69.8 gr | 80% | 35,955 psi | 59% | 2641 fps | 95.8% |
| ReloadSwiss RS 60 | 70.9 gr | 80% | 29,646 psi | 49% | 2493 fps | 96.7% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 38,493 psi | 63% | 2703 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 42,134 psi | 69% | 2776 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 41,597 psi | 68% | 2625 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 36,143 psi | 59% | 2526 fps | 97.8% |
| Rottweil R 903 | <<locked>> | 82% | 31,618 psi | 52% | 2477 fps | 95.8% |
| Shooters World Long Rifle | <<locked>> | 94% | 43,598 psi | 72% | 2697 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 37,376 psi | 61% | 2598 fps | 99.3% |
| Shooters World Precision | <<locked>> | 80% | 34,374 psi | 56% | 2507 fps | 97.4% |
| Shooters World SW4350 | <<locked>> | 98% | 46,818 psi | 77% | 2776 fps | 95.3% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 48,805 psi | 80% | 2743 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 33,025 psi | 54% | 2530 fps | 95.2% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 49,066 psi | 81% | 2736 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 38,914 psi | 64% | 2598 fps | 95.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 37,521 psi | 62% | 2589 fps | 96.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,914 psi | 66% | 2546 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,764 psi | 54% | 2411 fps | 99.5% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 49,748 psi | 82% | 2753 fps | 95.7% |
| Somchem S321 | <<locked>> | 80% | 44,150 psi | 72% | 2717 fps | 99.4% |
| Somchem S335 | <<locked>> | 80% | 39,320 psi | 65% | 2549 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 38,740 psi | 64% | 2605 fps | 97.1% |
| Somchem S355 | <<locked>> | 80% | 30,690 psi | 50% | 2438 fps | 95% |
| Somchem S365 | <<locked>> | 88% | 28,485 psi | 47% | 2461 fps | 95.3% |
| Unknown powder | <<locked>> | 92% | 40,161 psi | 66% | 2697 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 45,324 psi | 74% | 2621 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 40,132 psi | 66% | 2549 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 35,331 psi | 58% | 2526 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,201 psi | 59% | 2530 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 80% | 29,095 psi | 48% | 2375 fps | 96% |
| Vihtavuori N160 | <<locked>> | 92% | 38,435 psi | 63% | 2635 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 41,031 psi | 67% | 2635 fps | 98.9% |
| Vihtavuori N540 | <<locked>> | 80% | 34,766 psi | 57% | 2513 fps | 99.2% |
| Vihtavuori N550 | <<locked>> | 92% | 37,608 psi | 62% | 2638 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 31,937 psi | 52% | 2454 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 43,424 psi | 71% | 2736 fps | 99.7% |
| Winchester 760 | <<locked>> | 96% | 49,429 psi | 81% | 2884 fps | 95.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,180 psi | 76% | 2776 fps | 99.2% |
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 98 powders for .375 Blaser Mag. loaded with the .376 | 236gr | Peregrine VLR-5. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,031 fps; across all powders the maximum-charge window runs from 1,742 fps to 3,031 fps. Accurate 4350 gives the best case fill at 100 %, and 98 of the 98 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 236.0 gr projectile in 0.376" calls for a 1:17.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 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, ReloadSwiss RS 52 rank at the top here: for .375 Blaser Mag. with the .376 | 236gr | Peregrine VLR-5 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.