Load Specifications
Bullet Manufacturer:Frontier Bullets
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:1:6.0
Load data in caliber .375 Blaser Mag. with .375 | 250gr | Frontier PH HPBT bullet and 102 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 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% | 54,926 psi | 90% | 2713 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 53,345 psi | 88% | 2740 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 53,040 psi | 87% | 2736 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 55,071 psi | 90% | 2802 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 52,910 psi | 87% | 2726 fps | 96.1% |
| Accurate 4064 | <<locked>> | 92% | 52,997 psi | 87% | 2782 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 52,069 psi | 85% | 2851 fps | 99.2% |
| ADI AR 2206H | <<locked>> | 88% | 54,027 psi | 89% | 2812 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 94% | 54,882 psi | 90% | 2808 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 86% | 53,156 psi | 87% | 2766 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 53,461 psi | 88% | 2743 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 54,810 psi | 90% | 2871 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 53,229 psi | 87% | 2923 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 54,621 psi | 90% | 2831 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 54,679 psi | 90% | 2720 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 51,996 psi | 85% | 2805 fps | 99.5% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 50,618 psi | 83% | 2854 fps | 99.3% |
| Alliant Reloder-17 | <<locked>> | 96% | 51,532 psi | 85% | 2894 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 36,027 psi | 59% | 2589 fps | 97.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 39,827 psi | 65% | 2733 fps | 96.3% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 53,592 psi | 88% | 2825 fps | 99.4% |
| Bofors RP3 | <<locked>> | 94% | 55,085 psi | 90% | 2848 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 52,098 psi | 86% | 2759 fps | 96.3% |
| Hodgdon Benchmark | <<locked>> | 84% | 51,822 psi | 85% | 2703 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 52,069 psi | 85% | 2795 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 53,896 psi | 88% | 2890 fps | 99.7% |
| Hodgdon H322 | <<locked>> | 82% | 53,664 psi | 88% | 2759 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 54,795 psi | 90% | 2789 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 52,866 psi | 87% | 2808 fps | 98.9% |
| Hodgdon H414 | <<locked>> | 98% | 51,793 psi | 85% | 2844 fps | 97% |
| Hodgdon H4350 | <<locked>> | 96% | 52,895 psi | 87% | 2812 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 88% | 54,520 psi | 90% | 2825 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 46,847 psi | 77% | 2736 fps | 99.6% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 53,548 psi | 88% | 2854 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 52,881 psi | 87% | 2881 fps | 96.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,128 psi | 58% | 1696 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 52,359 psi | 86% | 2776 fps | 99.9% |
| IMR 3031 | <<locked>> | 88% | 54,201 psi | 89% | 2808 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 54,462 psi | 89% | 2795 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 90% | 54,723 psi | 90% | 2772 fps | 97.3% |
| IMR 4198 | <<locked>> | 82% | 54,723 psi | 90% | 2677 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 52,112 psi | 86% | 2782 fps | 96.3% |
| IMR 4451 Enduron | <<locked>> | 96% | 54,201 psi | 89% | 2792 fps | 97.2% |
| IMR 4831ᴾ | <<locked>> | 100% | 49,472 psi | 81% | 2792 fps | 99% |
| IMR 4895 | <<locked>> | 90% | 53,301 psi | 88% | 2835 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 86% | 53,156 psi | 87% | 2766 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 53,258 psi | 87% | 2753 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 53,301 psi | 88% | 2789 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 53,954 psi | 89% | 2743 fps | 99.8% |
| Lovex S062 | <<locked>> | 92% | 53,983 psi | 89% | 2789 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 53,113 psi | 87% | 2785 fps | 98.3% |
| Lovex S070ᴾ | <<locked>> | 100% | 53,853 psi | 88% | 2815 fps | 97.5% |
| Norma 201 | <<locked>> | 88% | 52,852 psi | 87% | 2759 fps | 100% |
| Norma 202 | <<locked>> | 88% | 53,243 psi | 87% | 2766 fps | 100% |
| Norma 203B | <<locked>> | 92% | 54,505 psi | 89% | 2841 fps | 99.9% |
| Norma URPᴾ | <<locked>> | 100% | 51,445 psi | 84% | 2841 fps | 99.1% |
| Ramshot Big Game | <<locked>> | 92% | 54,839 psi | 90% | 2864 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 50,502 psi | 83% | 2835 fps | 97.6% |
| Ramshot TAC | <<locked>> | 86% | 53,505 psi | 88% | 2782 fps | 98.5% |
| Ramshot Wild Boar | <<locked>> | 86% | 52,852 psi | 87% | 2802 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 84% | 54,143 psi | 89% | 2769 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,621 psi | 58% | 1739 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 52,750 psi | 87% | 2749 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 53,258 psi | 87% | 2785 fps | 97.7% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 51,909 psi | 85% | 2864 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 54,969 psi | 90% | 2949 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 51,750 psi | 85% | 2874 fps | 99% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 52,214 psi | 86% | 2900 fps | 98.8% |
| Rottweil R 901 | <<locked>> | 86% | 53,795 psi | 88% | 2743 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 53,171 psi | 87% | 2756 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 54,955 psi | 90% | 2838 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 52,098 psi | 86% | 2759 fps | 96.3% |
| Shooters World Long Rifle | <<locked>> | 98% | 53,113 psi | 87% | 2785 fps | 98.3% |
| Shooters World Match Rifle | <<locked>> | 88% | 53,301 psi | 88% | 2789 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 53,983 psi | 89% | 2789 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 53,853 psi | 88% | 2815 fps | 97.5% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 53,214 psi | 87% | 2848 fps | 99.8% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 51,648 psi | 85% | 2756 fps | 98.6% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 52,373 psi | 86% | 2782 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 54,491 psi | 89% | 2700 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 54,389 psi | 89% | 2700 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 53,577 psi | 88% | 2736 fps | 97.1% |
| Somchem S321 | <<locked>> | 84% | 54,288 psi | 89% | 2799 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 53,896 psi | 88% | 2703 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 54,708 psi | 90% | 2802 fps | 99.8% |
| Somchem S355 | <<locked>> | 94% | 51,909 psi | 85% | 2785 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 46,035 psi | 76% | 2792 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 54,317 psi | 89% | 2667 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 54,592 psi | 90% | 2687 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 52,605 psi | 86% | 2723 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 53,577 psi | 88% | 2740 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 53,432 psi | 88% | 2766 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 54,085 psi | 89% | 2838 fps | 99.3% |
| Vihtavuori N530 | <<locked>> | 86% | 53,606 psi | 88% | 2766 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 51,822 psi | 85% | 2740 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 53,185 psi | 87% | 2844 fps | 99.1% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 38,725 psi | 64% | 2664 fps | 97.5% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 55,013 psi | 90% | 2825 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 53,185 psi | 87% | 2812 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 51,967 psi | 85% | 2851 fps | 97.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 32,140 psi | 53% | 2566 fps | 96.6% |
| Winchester StaBALL Match | <<locked>> | 88% | 52,025 psi | 85% | 2792 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% | 45,745 psi | 75% | 2585 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 49,835 psi | 82% | 2690 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 38,232 psi | 63% | 2503 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 44,991 psi | 74% | 2651 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 49,545 psi | 81% | 2674 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 36,143 psi | 59% | 2493 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 34,418 psi | 56% | 2520 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 42,003 psi | 69% | 2608 fps | 98.5% |
| ADI AR 2208 | <<locked>> | 80% | 35,723 psi | 59% | 2457 fps | 96.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 44,034 psi | 72% | 2618 fps | 99.6% |
| Alliant AR-Comp | <<locked>> | 80% | 43,816 psi | 72% | 2608 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 51,314 psi | 84% | 2815 fps | 99.9% |
| Alliant Power Pro 2000-MR | 72.1 gr | 80% | 37,913 psi | 62% | 2625 fps | 96.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,114 psi | 58% | 2480 fps | 97.8% |
| Alliant Reloder-10x | <<locked>> | 80% | 51,474 psi | 85% | 2674 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,797 psi | 62% | 2539 fps | 97.1% |
| Alliant Reloder-16 | <<locked>> | 88% | 35,041 psi | 58% | 2533 fps | 95.4% |
| Alliant Reloder-17 | 71 gr | 80% | 30,269 psi | 50% | 2434 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 96% | 31,923 psi | 52% | 2484 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 98% | 37,188 psi | 61% | 2667 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 41,089 psi | 67% | 2608 fps | 97.4% |
| Bofors RP3 | <<locked>> | 80% | 34,534 psi | 57% | 2480 fps | 97.8% |
| Bofors RP7 | <<locked>> | 94% | 49,081 psi | 81% | 2710 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 45,948 psi | 75% | 2608 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 42,540 psi | 70% | 2635 fps | 99.7% |
| Hodgdon CFE223 | <<locked>> | 80% | 46,789 psi | 77% | 2772 fps | 99% |
| Hodgdon H322 | <<locked>> | 80% | 50,241 psi | 82% | 2710 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 51,082 psi | 84% | 2736 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 35,578 psi | 58% | 2480 fps | 95% |
| Hodgdon H414 | <<locked>> | 94% | 45,339 psi | 74% | 2736 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 94% | 49,719 psi | 82% | 2759 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 42,322 psi | 69% | 2618 fps | 99% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 30,139 psi | 49% | 2379 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,189 psi | 63% | 2585 fps | 98.6% |
| Hodgdon Superformance | <<locked>> | 96% | 49,197 psi | 81% | 2818 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,136 psi | 43% | 1516 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,698 psi | 67% | 2572 fps | 98.7% |
| IMR 3031 | <<locked>> | 80% | 41,669 psi | 68% | 2615 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 37,478 psi | 62% | 2490 fps | 97.1% |
| IMR 4166 Enduron | <<locked>> | 84% | 45,440 psi | 75% | 2615 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 51,648 psi | 85% | 2635 fps | 100% |
| IMR 4350 | <<locked>> | 98% | 48,921 psi | 80% | 2730 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 90% | 45,150 psi | 74% | 2641 fps | 95.2% |
| IMR 4831 | <<locked>> | 90% | 35,723 psi | 59% | 2533 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 38,667 psi | 63% | 2569 fps | 97.9% |
| IMR 8208 XBR | <<locked>> | 80% | 44,034 psi | 72% | 2618 fps | 99.6% |
| Lovex D073.5 | <<locked>> | 80% | 49,617 psi | 81% | 2697 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 40,857 psi | 67% | 2589 fps | 99.9% |
| Lovex S060 | <<locked>> | 80% | 42,395 psi | 70% | 2549 fps | 98.6% |
| Lovex S062 | <<locked>> | 80% | 37,391 psi | 61% | 2500 fps | 98.7% |
| Lovex S065 | <<locked>> | 88% | 39,291 psi | 65% | 2536 fps | 95.2% |
| Lovex S070 | <<locked>> | 94% | 44,730 psi | 73% | 2661 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 41,133 psi | 68% | 2562 fps | 99.3% |
| Norma 202 | <<locked>> | 80% | 41,365 psi | 68% | 2572 fps | 100% |
| Norma 203B | <<locked>> | 80% | 37,159 psi | 61% | 2530 fps | 97.5% |
| Norma URP | <<locked>> | 88% | 35,027 psi | 57% | 2523 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 36,550 psi | 60% | 2539 fps | 97.1% |
| Ramshot Hunter | <<locked>> | 94% | 41,669 psi | 68% | 2671 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 43,918 psi | 72% | 2618 fps | 96.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 43,178 psi | 71% | 2638 fps | 98.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 47,601 psi | 78% | 2664 fps | 99.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,527 psi | 44% | 1555 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 49,327 psi | 81% | 2697 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 43,859 psi | 72% | 2628 fps | 95.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 39,276 psi | 64% | 2638 fps | 97.5% |
| ReloadSwiss RS 60 | 71 gr | 80% | 32,242 psi | 53% | 2503 fps | 98.6% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 36,695 psi | 60% | 2592 fps | 95.6% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 39,726 psi | 65% | 2657 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 45,049 psi | 74% | 2605 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 39,247 psi | 64% | 2516 fps | 99% |
| Rottweil R 903 | <<locked>> | 80% | 32,590 psi | 54% | 2428 fps | 96.9% |
| Rottweil R 907 | <<locked>> | 94% | 49,081 psi | 81% | 2710 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 88% | 39,291 psi | 65% | 2536 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 40,857 psi | 67% | 2589 fps | 99.9% |
| Shooters World Precision | <<locked>> | 80% | 37,391 psi | 61% | 2500 fps | 98.7% |
| Shooters World SW4350 | <<locked>> | 94% | 44,730 psi | 73% | 2661 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,518 psi | 55% | 2474 fps | 96.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 42,047 psi | 69% | 2589 fps | 96.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,480 psi | 66% | 2575 fps | 98.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 42,627 psi | 70% | 2520 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,273 psi | 58% | 2388 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 43,961 psi | 72% | 2582 fps | 95% |
| Somchem S321 | <<locked>> | 80% | 47,529 psi | 78% | 2697 fps | 99.9% |
| Somchem S335 | <<locked>> | 80% | 42,177 psi | 69% | 2523 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 41,872 psi | 69% | 2592 fps | 98.4% |
| Somchem S355 | <<locked>> | 80% | 33,504 psi | 55% | 2434 fps | 96.9% |
| Somchem S365 | <<locked>> | 84% | 27,528 psi | 45% | 2365 fps | 95.7% |
| Vihtavuori N130 | <<locked>> | 80% | 48,196 psi | 79% | 2582 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 42,873 psi | 70% | 2516 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 38,363 psi | 63% | 2500 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,160 psi | 64% | 2510 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 31,865 psi | 52% | 2375 fps | 97.7% |
| Vihtavuori N160 | <<locked>> | 88% | 36,680 psi | 60% | 2526 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 43,976 psi | 72% | 2612 fps | 99.6% |
| Vihtavuori N540 | <<locked>> | 80% | 37,666 psi | 62% | 2497 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 88% | 35,940 psi | 59% | 2526 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 94% | 31,908 psi | 52% | 2503 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 30,342 psi | 50% | 2346 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 43,468 psi | 71% | 2657 fps | 99.9% |
| Winchester 760 | <<locked>> | 94% | 45,571 psi | 75% | 2740 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 98% | 30,124 psi | 49% | 2497 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,827 psi | 65% | 2579 fps | 98.6% |
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 102 powders for .375 Blaser Mag. loaded with the .375 | 250gr | Frontier PH HPBT. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,949 fps; across all powders the maximum-charge window runs from 1,696 fps to 2,949 fps. Accurate 4350 gives the best case fill at 100 %, and 102 of the 102 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. The 250.0 gr projectile in 0.375" calls for a 1:6.0 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. Alliant Power Pro 2000-MR, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for .375 Blaser Mag. with the .375 | 250gr | Frontier PH HPBT 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.