Load Specifications
Bullet:.375 | 240gr | Atomic 29 HP
Bullet Manufacturer:Atomic 29
Bullet Weight:240 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 | 240gr | Atomic 29 HP 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% | 52,620 psi | 86% | 2749 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 54,201 psi | 89% | 2822 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 53,359 psi | 88% | 2812 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 54,447 psi | 89% | 2871 fps | 100% |
| Accurate 4064 | <<locked>> | 94% | 53,301 psi | 88% | 2854 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 49,139 psi | 81% | 2867 fps | 98.6% |
| ADI AR 2206H | <<locked>> | 88% | 51,764 psi | 85% | 2841 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 94% | 52,707 psi | 87% | 2838 fps | 99.3% |
| ADI Benchmark 8208 | <<locked>> | 88% | 54,404 psi | 89% | 2848 fps | 100% |
| Alliant AR-Comp | <<locked>> | 88% | 54,433 psi | 89% | 2825 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 52,301 psi | 86% | 2897 fps | 99.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 54,665 psi | 90% | 3009 fps | 99.6% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 52,388 psi | 86% | 2854 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 52,141 psi | 86% | 2858 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 82% | 52,402 psi | 86% | 2756 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 52,881 psi | 87% | 2881 fps | 99.4% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 48,457 psi | 80% | 2874 fps | 98.7% |
| Alliant Reloder-17 | <<locked>> | 98% | 52,649 psi | 86% | 2976 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 34,026 psi | 56% | 2592 fps | 96.3% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 54,636 psi | 90% | 2740 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 54,911 psi | 90% | 2907 fps | 99.3% |
| Bofors RP3 | <<locked>> | 94% | 52,373 psi | 86% | 2874 fps | 99.9% |
| Bofors RP7 | <<locked>> | 98% | 53,214 psi | 87% | 2835 fps | 96.1% |
| Hodgdon Benchmark | <<locked>> | 86% | 52,953 psi | 87% | 2782 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 53,287 psi | 87% | 2877 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 51,387 psi | 84% | 2913 fps | 99.3% |
| Hodgdon H322 | <<locked>> | 86% | 54,244 psi | 89% | 2835 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 53,693 psi | 88% | 2884 fps | 98.8% |
| Hodgdon H414 | <<locked>> | 98% | 54,781 psi | 90% | 2956 fps | 97.2% |
| Hodgdon H4895 | <<locked>> | 88% | 52,214 psi | 86% | 2851 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 44,425 psi | 73% | 2753 fps | 99.1% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 54,418 psi | 89% | 2933 fps | 100% |
| Hodgdon Superformanceᴾ | <<locked>> | 100% | 54,201 psi | 89% | 2959 fps | 96.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,737 psi | 57% | 1736 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 52,388 psi | 86% | 2838 fps | 99.8% |
| IMR 3031 | <<locked>> | 92% | 53,403 psi | 88% | 2864 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 54,694 psi | 90% | 2861 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 96% | 54,433 psi | 89% | 2828 fps | 96.9% |
| IMR 4198 | <<locked>> | 82% | 52,881 psi | 87% | 2717 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 96% | 51,967 psi | 85% | 2818 fps | 96.4% |
| IMR 4831ᴾ | <<locked>> | 100% | 41,524 psi | 68% | 2710 fps | 97.1% |
| IMR 4895 | <<locked>> | 92% | 54,215 psi | 89% | 2913 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 88% | 54,404 psi | 89% | 2848 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 54,230 psi | 89% | 2831 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 54,244 psi | 89% | 2867 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 51,837 psi | 85% | 2772 fps | 99.6% |
| Lovex S062 | <<locked>> | 94% | 54,955 psi | 90% | 2867 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 54,085 psi | 89% | 2861 fps | 98.2% |
| Lovex S070ᴾ | <<locked>> | 100% | 51,401 psi | 84% | 2838 fps | 96.7% |
| Norma 201 | <<locked>> | 90% | 53,592 psi | 88% | 2838 fps | 100% |
| Norma 202 | <<locked>> | 90% | 54,157 psi | 89% | 2841 fps | 100% |
| Norma 203B | <<locked>> | 92% | 52,054 psi | 85% | 2867 fps | 99.6% |
| Norma URPᴾ | <<locked>> | 100% | 48,921 psi | 80% | 2861 fps | 98.5% |
| Ramshot Big Game | <<locked>> | 92% | 52,417 psi | 86% | 2890 fps | 99.6% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 48,124 psi | 79% | 2851 fps | 96.7% |
| Ramshot TAC | <<locked>> | 88% | 54,911 psi | 90% | 2864 fps | 98.4% |
| Ramshot Wild Boar | <<locked>> | 88% | 54,027 psi | 89% | 2881 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 84% | 52,011 psi | 85% | 2799 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,128 psi | 58% | 1775 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 54,012 psi | 89% | 2831 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 54,389 psi | 89% | 2864 fps | 97.6% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 52,953 psi | 87% | 2946 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 52,489 psi | 86% | 2979 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 48,907 psi | 80% | 2887 fps | 98.4% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 49,792 psi | 82% | 2913 fps | 98% |
| Rottweil R 901 | <<locked>> | 88% | 54,462 psi | 89% | 2822 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 54,114 psi | 89% | 2835 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 52,040 psi | 85% | 2861 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 98% | 53,214 psi | 87% | 2835 fps | 96.1% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 54,085 psi | 89% | 2861 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 90% | 54,244 psi | 89% | 2867 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 54,955 psi | 90% | 2867 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 51,401 psi | 84% | 2838 fps | 96.7% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 53,606 psi | 88% | 2799 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 54,201 psi | 89% | 2927 fps | 99.8% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 53,316 psi | 88% | 2779 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 52,881 psi | 87% | 2838 fps | 98.5% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 53,548 psi | 88% | 2864 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 52,460 psi | 86% | 2736 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 52,243 psi | 86% | 2733 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 54,766 psi | 90% | 2815 fps | 97% |
| Somchem S321 | <<locked>> | 84% | 51,880 psi | 85% | 2828 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 54,795 psi | 90% | 2779 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 52,475 psi | 86% | 2831 fps | 99.6% |
| Somchem S355 | <<locked>> | 96% | 52,678 psi | 86% | 2858 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,555 psi | 72% | 2808 fps | 99.8% |
| Unknown powderᴾ | <<locked>> | 100% | 53,664 psi | 88% | 2923 fps | 98.7% |
| Vihtavuori N130 | <<locked>> | 84% | 52,199 psi | 86% | 2703 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 52,605 psi | 86% | 2726 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 53,403 psi | 88% | 2802 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 54,679 psi | 90% | 2818 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 54,360 psi | 89% | 2841 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 51,576 psi | 85% | 2861 fps | 98.8% |
| Vihtavuori N530 | <<locked>> | 88% | 54,926 psi | 90% | 2848 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 52,895 psi | 87% | 2818 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 50,589 psi | 83% | 2864 fps | 98.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 36,289 psi | 60% | 2667 fps | 96.3% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 52,576 psi | 86% | 2848 fps | 99.9% |
| Winchester 748 | <<locked>> | 84% | 51,358 psi | 84% | 2851 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 54,781 psi | 90% | 2956 fps | 97.2% |
| Winchester StaBALL Match | <<locked>> | 84% | 54,926 psi | 90% | 2897 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% | 43,497 psi | 71% | 2612 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 47,282 psi | 78% | 2717 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 35,462 psi | 58% | 2516 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 40,915 psi | 67% | 2651 fps | 99.8% |
| Accurate 4064 | <<locked>> | 80% | 33,576 psi | 55% | 2503 fps | 99.5% |
| Accurate 4350 | <<locked>> | 92% | 36,912 psi | 61% | 2635 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 39,929 psi | 66% | 2625 fps | 97.8% |
| ADI AR 2208 | <<locked>> | 80% | 34,011 psi | 56% | 2474 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 42,032 psi | 69% | 2641 fps | 99.1% |
| Alliant AR-Comp | <<locked>> | 80% | 41,510 psi | 68% | 2638 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 48,921 psi | 80% | 2841 fps | 99.6% |
| Alliant Power Pro 2000-MR | 72.9 gr | 80% | 36,114 psi | 59% | 2635 fps | 95.5% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 40,364 psi | 66% | 2638 fps | 98.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,127 psi | 54% | 2490 fps | 96.8% |
| Alliant Reloder-10x | <<locked>> | 80% | 49,269 psi | 81% | 2710 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 35,737 psi | 59% | 2552 fps | 96.1% |
| Alliant Reloder-16 | <<locked>> | 90% | 35,505 psi | 58% | 2598 fps | 95% |
| Alliant Reloder-17 | <<locked>> | 84% | 32,750 psi | 54% | 2559 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 98% | 31,981 psi | 53% | 2536 fps | 95.3% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 51,140 psi | 84% | 2690 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 38,986 psi | 64% | 2621 fps | 96.4% |
| Bofors RP3 | <<locked>> | 80% | 32,387 psi | 53% | 2487 fps | 96.7% |
| Bofors RP7 | <<locked>> | 96% | 49,893 psi | 82% | 2782 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 44,063 psi | 72% | 2638 fps | 99.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,335 psi | 66% | 2654 fps | 99.3% |
| Hodgdon CFE223 | <<locked>> | 80% | 44,512 psi | 73% | 2792 fps | 98.4% |
| Hodgdon H322 | <<locked>> | 80% | 44,614 psi | 73% | 2687 fps | 100% |
| Hodgdon H380 | <<locked>> | 84% | 38,392 psi | 63% | 2605 fps | 95.5% |
| Hodgdon H414 | <<locked>> | 94% | 47,485 psi | 78% | 2835 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 40,234 psi | 66% | 2638 fps | 98.3% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 32,271 psi | 53% | 2490 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 34,055 psi | 56% | 2549 fps | 97.2% |
| Hodgdon Superformance | <<locked>> | 98% | 50,314 psi | 83% | 2894 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,831 psi | 42% | 1552 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 35,940 psi | 59% | 2526 fps | 97.2% |
| IMR 3031 | <<locked>> | 80% | 36,143 psi | 59% | 2575 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 33,199 psi | 55% | 2448 fps | 95.2% |
| IMR 4166 Enduron | <<locked>> | 92% | 48,356 psi | 79% | 2726 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 49,879 psi | 82% | 2677 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 94% | 48,863 psi | 80% | 2766 fps | 95.7% |
| IMR 4831 | <<locked>> | 96% | 36,434 psi | 60% | 2605 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 36,564 psi | 60% | 2585 fps | 97% |
| IMR 8208 XBR | <<locked>> | 80% | 42,032 psi | 69% | 2641 fps | 99.1% |
| Lovex D073.5 | <<locked>> | 80% | 47,123 psi | 77% | 2723 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 38,421 psi | 63% | 2605 fps | 99.6% |
| Lovex S060 | <<locked>> | 80% | 40,611 psi | 67% | 2572 fps | 98% |
| Lovex S062 | <<locked>> | 80% | 35,317 psi | 58% | 2513 fps | 97.9% |
| Lovex S065 | <<locked>> | 92% | 42,148 psi | 69% | 2651 fps | 95.6% |
| Lovex S070 | <<locked>> | 96% | 45,208 psi | 74% | 2730 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 38,957 psi | 64% | 2579 fps | 98.7% |
| Norma 202 | <<locked>> | 80% | 39,262 psi | 64% | 2595 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 35,114 psi | 58% | 2543 fps | 96.5% |
| Norma URP | <<locked>> | 92% | 37,550 psi | 62% | 2641 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 34,679 psi | 57% | 2549 fps | 96% |
| Ramshot Hunter | <<locked>> | 96% | 42,235 psi | 69% | 2736 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 42,018 psi | 69% | 2638 fps | 95.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,162 psi | 68% | 2657 fps | 98% |
| Ramshot X-Terminator | <<locked>> | 80% | 45,498 psi | 75% | 2687 fps | 98.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,976 psi | 43% | 1585 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 47,340 psi | 78% | 2730 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 44,672 psi | 73% | 2700 fps | 95.5% |
| ReloadSwiss RS 52 | 70.7 gr | 80% | 37,159 psi | 61% | 2651 fps | 96.5% |
| ReloadSwiss RS 60 | 71.8 gr | 80% | 30,530 psi | 50% | 2510 fps | 97.5% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 37,057 psi | 61% | 2657 fps | 95.3% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 40,422 psi | 66% | 2726 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 42,656 psi | 70% | 2628 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 37,101 psi | 61% | 2533 fps | 98.3% |
| Rottweil R 903 | <<locked>> | 80% | 30,429 psi | 50% | 2431 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 96% | 49,893 psi | 82% | 2782 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 92% | 42,148 psi | 69% | 2651 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,421 psi | 63% | 2605 fps | 99.6% |
| Shooters World Precision | <<locked>> | 80% | 35,317 psi | 58% | 2513 fps | 97.9% |
| Shooters World SW4350 | <<locked>> | 96% | 45,208 psi | 74% | 2730 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 50,038 psi | 82% | 2746 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 33,866 psi | 56% | 2536 fps | 95.8% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 50,096 psi | 82% | 2733 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 39,871 psi | 65% | 2605 fps | 95.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,609 psi | 63% | 2595 fps | 97.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,727 psi | 67% | 2546 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,533 psi | 55% | 2411 fps | 99.7% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 47,819 psi | 79% | 2707 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 45,223 psi | 74% | 2717 fps | 99.7% |
| Somchem S335 | <<locked>> | 80% | 40,147 psi | 66% | 2546 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 39,682 psi | 65% | 2608 fps | 97.6% |
| Somchem S355 | <<locked>> | 80% | 31,459 psi | 52% | 2441 fps | 95.7% |
| Somchem S365 | <<locked>> | 86% | 27,499 psi | 45% | 2415 fps | 95.1% |
| Unknown powder | <<locked>> | 90% | 38,667 psi | 63% | 2648 fps | 95.3% |
| Vihtavuori N130 | <<locked>> | 80% | 46,238 psi | 76% | 2615 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 40,988 psi | 67% | 2546 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,230 psi | 59% | 2523 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,188 psi | 61% | 2530 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 80% | 29,921 psi | 49% | 2382 fps | 96.7% |
| Vihtavuori N160 | <<locked>> | 90% | 37,028 psi | 61% | 2592 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 42,047 psi | 69% | 2635 fps | 99.2% |
| Vihtavuori N540 | <<locked>> | 80% | 35,665 psi | 59% | 2516 fps | 99.4% |
| Vihtavuori N550 | <<locked>> | 90% | 36,260 psi | 60% | 2592 fps | 95% |
| Vihtavuori N555 | <<locked>> | 98% | 33,953 psi | 56% | 2615 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 30,647 psi | 50% | 2408 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 44,527 psi | 73% | 2740 fps | 99.8% |
| Winchester 760 | <<locked>> | 94% | 47,485 psi | 78% | 2835 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 47,413 psi | 78% | 2779 fps | 99.5% |
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 | 240gr | Atomic 29 HP. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,009 fps; across all powders the maximum-charge window runs from 1,736 fps to 3,009 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 240.0 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. ReloadSwiss RS 60, Alliant Power Pro 2000-MR, ReloadSwiss RS 52 rank at the top here: for .375 Blaser Mag. with the .375 | 240gr | Atomic 29 HP 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.