Load Specifications
Bullet Manufacturer:Peregrine
Bullet Weight:256 gr
Bullet Diameter:0.376"
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:1:16.0
Load data in caliber .375 Blaser Mag. with .376 | 256gr | Peregrine VLR-5 bullet and 103 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% | 53,316 psi | 88% | 2657 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 51,358 psi | 84% | 2680 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 54,259 psi | 89% | 2720 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 55,114 psi | 90% | 2776 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 55,114 psi | 90% | 2776 fps | 100% |
| Accurate 2700 | <<locked>> | 94% | 52,228 psi | 86% | 2671 fps | 96.1% |
| Accurate 4064 | <<locked>> | 94% | 54,114 psi | 89% | 2762 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 50,053 psi | 82% | 2785 fps | 99% |
| ADI AR 2206H | <<locked>> | 88% | 52,373 psi | 86% | 2753 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 94% | 53,519 psi | 88% | 2753 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 88% | 55,027 psi | 90% | 2756 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 51,663 psi | 85% | 2684 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 53,287 psi | 87% | 2812 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 51,764 psi | 85% | 2861 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 52,924 psi | 87% | 2772 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 52,982 psi | 87% | 2661 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 53,621 psi | 88% | 2792 fps | 99.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 49,037 psi | 81% | 2792 fps | 99.1% |
| Alliant Reloder-17 | <<locked>> | 98% | 53,432 psi | 88% | 2887 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 34,519 psi | 57% | 2523 fps | 97.1% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 52,054 psi | 85% | 2766 fps | 99.3% |
| Bofors RP3 | <<locked>> | 94% | 53,156 psi | 87% | 2785 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 53,766 psi | 88% | 2749 fps | 96.7% |
| Hodgdon Benchmark | <<locked>> | 86% | 53,737 psi | 88% | 2694 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 53,911 psi | 89% | 2785 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 52,344 psi | 86% | 2828 fps | 99.6% |
| Hodgdon H322 | <<locked>> | 86% | 55,071 psi | 90% | 2743 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 54,520 psi | 90% | 2795 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 96% | 51,663 psi | 85% | 2808 fps | 97.1% |
| Hodgdon H4350ᴾ | <<locked>> | 100% | 52,750 psi | 87% | 2772 fps | 95.8% |
| Hodgdon H4895 | <<locked>> | 88% | 52,910 psi | 87% | 2762 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 45,179 psi | 74% | 2674 fps | 99.5% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 51,692 psi | 85% | 2792 fps | 100% |
| Hodgdon Superformanceᴾ | <<locked>> | 100% | 54,882 psi | 90% | 2874 fps | 97.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,954 psi | 57% | 1667 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 53,069 psi | 87% | 2749 fps | 99.9% |
| IMR 3031 | <<locked>> | 92% | 54,259 psi | 89% | 2772 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 52,156 psi | 86% | 2723 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 96% | 55,056 psi | 90% | 2740 fps | 97.5% |
| IMR 4198 | <<locked>> | 82% | 53,592 psi | 88% | 2625 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 50,473 psi | 83% | 2720 fps | 96.1% |
| IMR 4451 Enduron | <<locked>> | 96% | 52,620 psi | 86% | 2733 fps | 97% |
| IMR 4831ᴾ | <<locked>> | 100% | 42,221 psi | 69% | 2635 fps | 97.8% |
| IMR 4895 | <<locked>> | 92% | 54,955 psi | 90% | 2822 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 88% | 55,027 psi | 90% | 2756 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 54,897 psi | 90% | 2740 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 55,114 psi | 90% | 2776 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 52,446 psi | 86% | 2684 fps | 99.8% |
| Lovex S062 | <<locked>> | 92% | 52,286 psi | 86% | 2730 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 54,810 psi | 90% | 2772 fps | 98.6% |
| Lovex S070ᴾ | <<locked>> | 100% | 52,156 psi | 86% | 2756 fps | 97.3% |
| Norma 201 | <<locked>> | 90% | 54,259 psi | 89% | 2746 fps | 100% |
| Norma 202 | <<locked>> | 90% | 54,853 psi | 90% | 2749 fps | 100% |
| Norma 203B | <<locked>> | 92% | 52,779 psi | 87% | 2779 fps | 99.8% |
| Norma URPᴾ | <<locked>> | 100% | 49,734 psi | 82% | 2779 fps | 98.9% |
| Ramshot Big Game | <<locked>> | 92% | 53,142 psi | 87% | 2802 fps | 99.8% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 48,878 psi | 80% | 2772 fps | 97.4% |
| Ramshot TAC | <<locked>> | 86% | 51,953 psi | 85% | 2723 fps | 98.3% |
| Ramshot Wild Boar | <<locked>> | 88% | 54,911 psi | 90% | 2795 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 84% | 52,721 psi | 87% | 2710 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,230 psi | 58% | 1703 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 54,723 psi | 90% | 2740 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 51,547 psi | 85% | 2726 fps | 97.5% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 53,882 psi | 88% | 2858 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 53,374 psi | 88% | 2890 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 49,705 psi | 82% | 2805 fps | 98.8% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 50,546 psi | 83% | 2835 fps | 98.6% |
| Rottweil R 901 | <<locked>> | 86% | 51,924 psi | 85% | 2680 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 54,810 psi | 90% | 2746 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 52,808 psi | 87% | 2772 fps | 100% |
| Rottweil R 907 | <<locked>> | 98% | 53,766 psi | 88% | 2749 fps | 96.7% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 54,810 psi | 90% | 2772 fps | 98.6% |
| Shooters World Match Rifle | <<locked>> | 90% | 55,114 psi | 90% | 2776 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 52,286 psi | 86% | 2730 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 52,156 psi | 86% | 2756 fps | 97.3% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 54,404 psi | 89% | 2713 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 55,056 psi | 90% | 2838 fps | 99.9% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 54,172 psi | 89% | 2687 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 53,592 psi | 88% | 2753 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 54,317 psi | 89% | 2776 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 53,200 psi | 87% | 2648 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 52,895 psi | 87% | 2644 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 51,866 psi | 85% | 2677 fps | 96.9% |
| Somchem S321 | <<locked>> | 84% | 52,692 psi | 87% | 2740 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 52,141 psi | 86% | 2644 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 53,142 psi | 87% | 2743 fps | 99.8% |
| Somchem S355 | <<locked>> | 96% | 53,563 psi | 88% | 2772 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 44,179 psi | 73% | 2726 fps | 100% |
| Unknown powderᴾ | <<locked>> | 100% | 54,563 psi | 90% | 2841 fps | 99.1% |
| Vihtavuori N130 | <<locked>> | 84% | 52,866 psi | 87% | 2612 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 53,316 psi | 88% | 2635 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 54,288 psi | 89% | 2710 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 52,025 psi | 85% | 2684 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 51,547 psi | 85% | 2707 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 52,417 psi | 86% | 2776 fps | 99.2% |
| Vihtavuori N530 | <<locked>> | 86% | 52,025 psi | 85% | 2707 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 53,519 psi | 88% | 2726 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 51,387 psi | 84% | 2782 fps | 98.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 36,912 psi | 61% | 2595 fps | 97.1% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 53,417 psi | 88% | 2766 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 52,214 psi | 86% | 2762 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 51,663 psi | 85% | 2808 fps | 97.1% |
| Winchester StaBALL Match | <<locked>> | 82% | 51,750 psi | 85% | 2753 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% | 43,990 psi | 72% | 2523 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 48,037 psi | 79% | 2631 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 36,201 psi | 59% | 2441 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 41,698 psi | 68% | 2575 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 41,698 psi | 68% | 2575 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 48,907 psi | 80% | 2621 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 34,272 psi | 56% | 2431 fps | 99.8% |
| Accurate 4350 | <<locked>> | 90% | 35,085 psi | 58% | 2510 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 40,538 psi | 67% | 2546 fps | 98.3% |
| ADI AR 2208 | <<locked>> | 80% | 34,548 psi | 57% | 2402 fps | 96% |
| ADI Benchmark 8208 | <<locked>> | 80% | 42,656 psi | 70% | 2559 fps | 99.5% |
| Alliant AR-Comp | <<locked>> | 80% | 42,322 psi | 69% | 2552 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 49,719 psi | 82% | 2756 fps | 99.8% |
| Alliant Power Pro 2000-MR | 70.2 gr | 80% | 36,608 psi | 60% | 2562 fps | 96.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,649 psi | 55% | 2418 fps | 97.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 49,879 psi | 82% | 2618 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,347 psi | 60% | 2480 fps | 96.8% |
| Alliant Reloder-16 | <<locked>> | 88% | 33,808 psi | 56% | 2470 fps | 95% |
| Alliant Reloder-17 | 70.9 gr | 82% | 31,082 psi | 51% | 2431 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 96% | 30,516 psi | 50% | 2418 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,595 psi | 65% | 2546 fps | 97.1% |
| Bofors RP3 | <<locked>> | 80% | 32,909 psi | 54% | 2415 fps | 97.4% |
| Bofors RP7 | <<locked>> | 94% | 47,427 psi | 78% | 2648 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 44,628 psi | 73% | 2552 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,959 psi | 67% | 2575 fps | 99.6% |
| Hodgdon CFE223 | <<locked>> | 80% | 45,310 psi | 74% | 2713 fps | 98.9% |
| Hodgdon H322 | <<locked>> | 80% | 45,368 psi | 74% | 2602 fps | 100% |
| Hodgdon H380 | <<locked>> | 82% | 36,448 psi | 60% | 2474 fps | 95.4% |
| Hodgdon H414 | <<locked>> | 92% | 45,136 psi | 74% | 2697 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 98% | 49,574 psi | 81% | 2720 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 40,872 psi | 67% | 2559 fps | 98.8% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 30,690 psi | 50% | 2369 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 34,563 psi | 57% | 2477 fps | 97.9% |
| Hodgdon Superformance | <<locked>> | 96% | 47,514 psi | 78% | 2753 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,860 psi | 42% | 1486 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 36,521 psi | 60% | 2451 fps | 97.8% |
| IMR 3031 | <<locked>> | 80% | 36,709 psi | 60% | 2493 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 33,808 psi | 56% | 2379 fps | 96% |
| IMR 4166 Enduron | <<locked>> | 90% | 46,035 psi | 76% | 2592 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 50,473 psi | 83% | 2582 fps | 100% |
| IMR 4350 | <<locked>> | 98% | 47,427 psi | 78% | 2671 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 92% | 46,586 psi | 76% | 2631 fps | 95.6% |
| IMR 4831 | <<locked>> | 94% | 34,824 psi | 57% | 2484 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 37,188 psi | 61% | 2510 fps | 97.7% |
| IMR 8208 XBR | <<locked>> | 80% | 42,656 psi | 70% | 2559 fps | 99.5% |
| Lovex D073.5 | <<locked>> | 80% | 47,805 psi | 78% | 2638 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 39,059 psi | 64% | 2526 fps | 99.8% |
| Lovex S060 | <<locked>> | 80% | 41,046 psi | 67% | 2490 fps | 98.4% |
| Lovex S062 | <<locked>> | 80% | 35,824 psi | 59% | 2438 fps | 98.4% |
| Lovex S065 | <<locked>> | 90% | 40,074 psi | 66% | 2523 fps | 95.6% |
| Lovex S070 | <<locked>> | 94% | 43,076 psi | 71% | 2598 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 39,639 psi | 65% | 2503 fps | 99.1% |
| Norma 202 | <<locked>> | 80% | 39,798 psi | 65% | 2513 fps | 100% |
| Norma 203B | <<locked>> | 80% | 35,694 psi | 59% | 2467 fps | 97.2% |
| Norma URP | <<locked>> | 90% | 35,708 psi | 59% | 2510 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 35,186 psi | 58% | 2477 fps | 96.8% |
| Ramshot Hunter | <<locked>> | 94% | 40,176 psi | 66% | 2608 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 42,612 psi | 70% | 2559 fps | 96.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,785 psi | 69% | 2579 fps | 98.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,267 psi | 76% | 2608 fps | 99.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,049 psi | 43% | 1522 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 47,935 psi | 79% | 2641 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 42,395 psi | 70% | 2566 fps | 95.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 37,826 psi | 62% | 2575 fps | 97.2% |
| ReloadSwiss RS 60 | 69.1 gr | 80% | 30,908 psi | 51% | 2438 fps | 98.2% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 35,114 psi | 58% | 2526 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 38,305 psi | 63% | 2592 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 43,294 psi | 71% | 2546 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 37,565 psi | 62% | 2454 fps | 98.7% |
| Rottweil R 903 | <<locked>> | 80% | 30,951 psi | 51% | 2362 fps | 96.4% |
| Rottweil R 907 | <<locked>> | 94% | 47,427 psi | 78% | 2648 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 90% | 40,074 psi | 66% | 2523 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,059 psi | 64% | 2526 fps | 99.8% |
| Shooters World Precision | <<locked>> | 80% | 35,824 psi | 59% | 2438 fps | 98.4% |
| Shooters World SW4350 | <<locked>> | 94% | 43,076 psi | 71% | 2598 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 50,705 psi | 83% | 2657 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 32,242 psi | 53% | 2411 fps | 95.8% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 50,749 psi | 83% | 2638 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 40,495 psi | 66% | 2530 fps | 96.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,175 psi | 64% | 2516 fps | 98% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,234 psi | 68% | 2464 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,011 psi | 56% | 2336 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 45,324 psi | 74% | 2575 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 45,832 psi | 75% | 2635 fps | 99.9% |
| Somchem S335 | <<locked>> | 80% | 40,814 psi | 67% | 2467 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 40,306 psi | 66% | 2530 fps | 98.2% |
| Somchem S355 | <<locked>> | 80% | 32,082 psi | 53% | 2372 fps | 96.5% |
| Somchem S365 | <<locked>> | 84% | 26,136 psi | 43% | 2297 fps | 95.1% |
| Unknown powder | <<locked>> | 88% | 36,753 psi | 60% | 2520 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 46,789 psi | 77% | 2526 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 41,510 psi | 68% | 2461 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,811 psi | 60% | 2444 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,739 psi | 62% | 2451 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 30,443 psi | 50% | 2313 fps | 97.4% |
| Vihtavuori N160 | <<locked>> | 88% | 35,201 psi | 58% | 2464 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 42,569 psi | 70% | 2552 fps | 99.5% |
| Vihtavuori N540 | <<locked>> | 80% | 36,172 psi | 59% | 2438 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 90% | 36,840 psi | 60% | 2520 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 96% | 32,271 psi | 53% | 2487 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 29,109 psi | 48% | 2287 fps | 95% |
| Winchester 748 | <<locked>> | 80% | 45,237 psi | 74% | 2654 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 45,136 psi | 74% | 2697 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 48,037 psi | 79% | 2694 fps | 99.7% |
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 103 powders for .375 Blaser Mag. loaded with the .376 | 256gr | Peregrine VLR-5. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,890 fps; across all powders the maximum-charge window runs from 1,667 fps to 2,890 fps. Accurate 4350 gives the best case fill at 100 %, and 103 of the 103 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 256.0 gr projectile in 0.376" calls for a 1:16.0 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 .376 | 256gr | 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.