Load Specifications
Bullet:.375 | 275gr | SUS-TAC HP
Bullet Manufacturer:SUS-TAC
Bullet Weight:275 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 | 275gr | SUS-TAC 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 Alliant Reloder-17, ReloadSwiss RS 60 and Alliant Power Pro 2000-MR.
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>> | 84% | 53,084 psi | 87% | 2543 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 54,694 psi | 90% | 2612 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 54,694 psi | 90% | 2608 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 54,911 psi | 90% | 2661 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 51,793 psi | 85% | 2566 fps | 96.7% |
| Accurate 4064 | <<locked>> | 92% | 54,607 psi | 90% | 2654 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 53,838 psi | 88% | 2733 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 86% | 51,967 psi | 85% | 2638 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 92% | 52,997 psi | 87% | 2638 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 54,375 psi | 89% | 2638 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 55,114 psi | 90% | 2612 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 54,824 psi | 90% | 2799 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 52,634 psi | 86% | 2648 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 52,837 psi | 87% | 2661 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 53,461 psi | 88% | 2680 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 52,069 psi | 85% | 2736 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 96% | 53,127 psi | 87% | 2772 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,159 psi | 61% | 2490 fps | 98.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 40,973 psi | 67% | 2631 fps | 97.7% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 54,969 psi | 90% | 2700 fps | 99.8% |
| Bofors RP3 | <<locked>> | 92% | 53,185 psi | 87% | 2674 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 53,592 psi | 88% | 2644 fps | 97.3% |
| Hodgdon Benchmark | <<locked>> | 84% | 53,055 psi | 87% | 2579 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 53,461 psi | 88% | 2667 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 51,808 psi | 85% | 2710 fps | 99.8% |
| Hodgdon H322 | <<locked>> | 84% | 54,389 psi | 89% | 2618 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 54,317 psi | 89% | 2687 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 96% | 54,969 psi | 90% | 2753 fps | 98.3% |
| Hodgdon H4350 | <<locked>> | 98% | 52,518 psi | 86% | 2664 fps | 96.5% |
| Hodgdon H4895 | <<locked>> | 86% | 52,460 psi | 86% | 2648 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 48,254 psi | 79% | 2618 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 55,056 psi | 90% | 2726 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 54,302 psi | 89% | 2766 fps | 97.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,288 psi | 58% | 1598 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 52,692 psi | 87% | 2635 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 54,070 psi | 89% | 2654 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 54,969 psi | 90% | 2654 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 94% | 54,607 psi | 90% | 2631 fps | 98% |
| IMR 4350ᴾ | <<locked>> | 100% | 53,534 psi | 88% | 2667 fps | 97.4% |
| IMR 4451 Enduron | <<locked>> | 94% | 52,286 psi | 86% | 2625 fps | 97.5% |
| IMR 4831ᴾ | <<locked>> | 100% | 45,353 psi | 74% | 2589 fps | 98.9% |
| IMR 4895 | <<locked>> | 90% | 54,810 psi | 90% | 2707 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 54,375 psi | 89% | 2638 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 54,549 psi | 90% | 2625 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 54,911 psi | 90% | 2661 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 55,042 psi | 90% | 2615 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 52,272 psi | 86% | 2618 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 54,650 psi | 90% | 2667 fps | 99% |
| Lovex S070 | <<locked>> | 98% | 51,953 psi | 85% | 2648 fps | 97.8% |
| Norma 201 | <<locked>> | 88% | 54,143 psi | 89% | 2635 fps | 100% |
| Norma 202 | <<locked>> | 88% | 54,650 psi | 90% | 2635 fps | 100% |
| Norma 203B | <<locked>> | 90% | 52,634 psi | 86% | 2667 fps | 100% |
| Norma 204ᴾ | <<locked>> | 100% | 53,983 psi | 89% | 2710 fps | 96.1% |
| Norma URPᴾ | <<locked>> | 100% | 52,968 psi | 87% | 2720 fps | 99.6% |
| Ramshot Big Game | <<locked>> | 90% | 52,910 psi | 87% | 2690 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 51,837 psi | 85% | 2717 fps | 98.5% |
| Ramshot TAC | <<locked>> | 86% | 54,636 psi | 90% | 2657 fps | 99.1% |
| Ramshot Wild Boar | <<locked>> | 86% | 54,230 psi | 89% | 2677 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 52,011 psi | 85% | 2595 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,868 psi | 59% | 1640 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 53,940 psi | 89% | 2618 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 54,534 psi | 90% | 2667 fps | 98.5% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 53,679 psi | 88% | 2743 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 52,982 psi | 87% | 2772 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 53,476 psi | 88% | 2756 fps | 99.6% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 53,650 psi | 88% | 2782 fps | 99.4% |
| Rottweil R 901 | <<locked>> | 84% | 51,982 psi | 85% | 2569 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 54,694 psi | 90% | 2631 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 52,852 psi | 87% | 2661 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 53,592 psi | 88% | 2644 fps | 97.3% |
| Shooters World Long Rifle | <<locked>> | 98% | 54,650 psi | 90% | 2667 fps | 99% |
| Shooters World Match Rifle | <<locked>> | 88% | 54,911 psi | 90% | 2661 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 52,272 psi | 86% | 2618 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 51,953 psi | 85% | 2648 fps | 97.8% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 54,592 psi | 90% | 2720 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 53,069 psi | 87% | 2638 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 53,809 psi | 88% | 2661 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 52,620 psi | 86% | 2533 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 52,402 psi | 86% | 2530 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 51,692 psi | 85% | 2575 fps | 97.5% |
| Somchem S321 | <<locked>> | 82% | 52,011 psi | 85% | 2621 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 55,085 psi | 90% | 2572 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 52,576 psi | 86% | 2628 fps | 99.9% |
| Somchem S355 | <<locked>> | 94% | 53,330 psi | 88% | 2661 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 47,514 psi | 78% | 2674 fps | 100% |
| Unknown powder | <<locked>> | 98% | 54,288 psi | 89% | 2730 fps | 99.4% |
| Vihtavuori N130 | <<locked>> | 82% | 52,402 psi | 86% | 2497 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 52,823 psi | 87% | 2516 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 54,143 psi | 89% | 2595 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 51,837 psi | 85% | 2569 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 54,723 psi | 90% | 2641 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 52,214 psi | 86% | 2667 fps | 99.5% |
| Vihtavuori N530 | <<locked>> | 86% | 54,955 psi | 90% | 2638 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 53,156 psi | 87% | 2612 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 54,795 psi | 90% | 2726 fps | 99.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,016 psi | 66% | 2559 fps | 98.5% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 52,649 psi | 86% | 2651 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 51,576 psi | 85% | 2641 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 54,969 psi | 90% | 2753 fps | 98.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,069 psi | 54% | 2484 fps | 98.2% |
| Winchester StaBALL Match | <<locked>> | 82% | 54,752 psi | 90% | 2684 fps | 100% |
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% | 46,920 psi | 77% | 2461 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 51,169 psi | 84% | 2566 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 39,523 psi | 65% | 2392 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 44,788 psi | 74% | 2516 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 45,426 psi | 75% | 2464 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 37,391 psi | 61% | 2388 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 33,243 psi | 55% | 2369 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 43,120 psi | 71% | 2493 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 80% | 36,709 psi | 60% | 2352 fps | 97.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,194 psi | 74% | 2500 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 45,208 psi | 74% | 2484 fps | 100% |
| Alliant Power Pro 2000-MR | 68.6 gr | 80% | 39,030 psi | 64% | 2520 fps | 97.9% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 43,642 psi | 72% | 2503 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,274 psi | 60% | 2375 fps | 98.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,899 psi | 64% | 2431 fps | 98.1% |
| Alliant Reloder-16 | <<locked>> | 84% | 31,981 psi | 53% | 2333 fps | 95.1% |
| Alliant Reloder-17 | 67.6 gr | 80% | 31,241 psi | 51% | 2346 fps | 96.8% |
| Alliant Reloder-23 | <<locked>> | 92% | 29,182 psi | 48% | 2290 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 96% | 35,752 psi | 59% | 2513 fps | 95.8% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,163 psi | 69% | 2497 fps | 98.3% |
| Bofors RP3 | <<locked>> | 80% | 35,694 psi | 59% | 2379 fps | 98.7% |
| Bofors RP7 | <<locked>> | 90% | 44,454 psi | 73% | 2493 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 46,963 psi | 77% | 2487 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 43,772 psi | 72% | 2520 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 48,182 psi | 79% | 2654 fps | 99.6% |
| Hodgdon H322 | <<locked>> | 80% | 47,979 psi | 79% | 2530 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 36,637 psi | 60% | 2379 fps | 96.2% |
| Hodgdon H414 | <<locked>> | 88% | 41,959 psi | 69% | 2539 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 94% | 46,383 psi | 76% | 2566 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 43,497 psi | 71% | 2503 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 27,485 psi | 45% | 2188 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,115 psi | 61% | 2431 fps | 99% |
| Hodgdon Superformance | <<locked>> | 92% | 43,801 psi | 72% | 2589 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,310 psi | 43% | 1427 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,754 psi | 64% | 2402 fps | 98.8% |
| IMR 3031 | <<locked>> | 80% | 39,494 psi | 65% | 2438 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 35,969 psi | 59% | 2329 fps | 97.4% |
| IMR 4166 Enduron | <<locked>> | 86% | 43,091 psi | 71% | 2441 fps | 95.6% |
| IMR 4350 | <<locked>> | 94% | 44,469 psi | 73% | 2520 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 88% | 43,526 psi | 71% | 2480 fps | 95.6% |
| IMR 4831 | <<locked>> | 88% | 31,082 psi | 51% | 2300 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 39,827 psi | 65% | 2461 fps | 98.8% |
| IMR 8208 XBR | <<locked>> | 80% | 45,194 psi | 74% | 2500 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 80% | 51,068 psi | 84% | 2575 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 42,148 psi | 69% | 2474 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 43,424 psi | 71% | 2434 fps | 99.2% |
| Lovex S062 | <<locked>> | 80% | 38,479 psi | 63% | 2392 fps | 99.3% |
| Lovex S065 | <<locked>> | 86% | 37,898 psi | 62% | 2382 fps | 95.6% |
| Lovex S070 | <<locked>> | 90% | 40,683 psi | 67% | 2454 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 42,279 psi | 69% | 2448 fps | 99.7% |
| Norma 202 | <<locked>> | 80% | 42,598 psi | 70% | 2457 fps | 100% |
| Norma 203B | <<locked>> | 80% | 38,261 psi | 63% | 2421 fps | 98.4% |
| Norma 204 | <<locked>> | 98% | 50,618 psi | 83% | 2657 fps | 95.4% |
| Norma URP | <<locked>> | 86% | 33,881 psi | 56% | 2372 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 37,695 psi | 62% | 2434 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 90% | 37,637 psi | 62% | 2457 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 44,962 psi | 74% | 2503 fps | 97.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,425 psi | 73% | 2523 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 48,660 psi | 80% | 2543 fps | 99.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,600 psi | 44% | 1463 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 50,676 psi | 83% | 2572 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 39,639 psi | 65% | 2415 fps | 95.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,596 psi | 67% | 2526 fps | 98.5% |
| ReloadSwiss RS 60 | 67.6 gr | 80% | 33,272 psi | 55% | 2408 fps | 99.5% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 33,098 psi | 54% | 2385 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 35,897 psi | 59% | 2444 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 46,311 psi | 76% | 2484 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,292 psi | 66% | 2405 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 80% | 33,620 psi | 55% | 2326 fps | 97.9% |
| Rottweil R 907 | <<locked>> | 90% | 44,454 psi | 73% | 2493 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 86% | 37,898 psi | 62% | 2382 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,148 psi | 69% | 2474 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 38,479 psi | 63% | 2392 fps | 99.3% |
| Shooters World SW4350 | <<locked>> | 90% | 40,683 psi | 67% | 2454 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,548 psi | 57% | 2372 fps | 97.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,279 psi | 71% | 2480 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,626 psi | 68% | 2464 fps | 99% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,729 psi | 72% | 2402 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,260 psi | 60% | 2280 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 42,366 psi | 70% | 2425 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 48,704 psi | 80% | 2572 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 43,308 psi | 71% | 2405 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 42,975 psi | 71% | 2480 fps | 99.1% |
| Somchem S355 | <<locked>> | 80% | 34,534 psi | 57% | 2333 fps | 97.9% |
| Somchem S365 | <<locked>> | 80% | 25,077 psi | 41% | 2175 fps | 95.4% |
| Unknown powder | <<locked>> | 84% | 34,563 psi | 57% | 2375 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 49,356 psi | 81% | 2454 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 43,990 psi | 72% | 2395 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,624 psi | 65% | 2385 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,219 psi | 66% | 2395 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,779 psi | 54% | 2274 fps | 98.6% |
| Vihtavuori N160 | <<locked>> | 84% | 33,170 psi | 54% | 2323 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 45,237 psi | 74% | 2493 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 38,711 psi | 64% | 2388 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 32,547 psi | 53% | 2326 fps | 95% |
| Vihtavuori N555 | <<locked>> | 92% | 30,995 psi | 51% | 2359 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,167 psi | 48% | 2201 fps | 96% |
| Winchester 748 | <<locked>> | 80% | 48,225 psi | 79% | 2592 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 41,959 psi | 69% | 2539 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 96% | 29,167 psi | 48% | 2362 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 51,039 psi | 84% | 2631 fps | 100% |
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 | 275gr | SUS-TAC HP. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,799 fps; across all powders the maximum-charge window runs from 1,598 fps to 2,799 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 54–90 %, leaving at least 10 % headroom. The 275.0 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. Alliant Reloder-17, ReloadSwiss RS 60, Alliant Power Pro 2000-MR rank at the top here: for .375 Blaser Mag. with the .375 | 275gr | SUS-TAC 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.