Load Specifications
Bullet Manufacturer:Peregrine
Bullet Weight:276 gr
Bullet Diameter:0.376"
Bullet Length:<<locked>>
Caliber:.375 Rem. Ultra Mag. load data
Case Length (l3):2.85"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:117 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:24"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:15.5
Load data in caliber .375 Rem. Ultra Mag. with .376 | 276gr | Peregrine VLR-5 bullet and 104 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Hodgdon Superformance 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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 84% | 57,725 psi | 90% | 2549 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 56,434 psi | 88% | 2569 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 54,824 psi | 86% | 2592 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 55,796 psi | 87% | 2589 fps | 98.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 43,932 psi | 69% | 2500 fps | 97.8% |
| Accurate 4064 | <<locked>> | 90% | 56,724 psi | 89% | 2618 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 57,305 psi | 90% | 2710 fps | 100% |
| ADI AR 2206H | <<locked>> | 86% | 57,101 psi | 89% | 2657 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 54,636 psi | 86% | 2608 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 51,880 psi | 81% | 2644 fps | 96.8% |
| ADI Benchmark 8208 | <<locked>> | 84% | 55,898 psi | 88% | 2605 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 57,203 psi | 90% | 2575 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 57,406 psi | 90% | 2776 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 54,882 psi | 86% | 2631 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 55,288 psi | 87% | 2651 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 54,795 psi | 86% | 2717 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 56,043 psi | 88% | 2746 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 50,879 psi | 80% | 2635 fps | 96.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,785 psi | 65% | 2530 fps | 99.8% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 36,680 psi | 57% | 2434 fps | 96.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,210 psi | 74% | 2690 fps | 99.6% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 57,116 psi | 90% | 2674 fps | 100% |
| Bofors RP3 | <<locked>> | 90% | 55,361 psi | 87% | 2641 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 55,463 psi | 87% | 2625 fps | 98.4% |
| Hodgdon Benchmark | <<locked>> | 84% | 57,537 psi | 90% | 2589 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,434 psi | 87% | 2631 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 57,740 psi | 90% | 2730 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 56,376 psi | 88% | 2657 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 96% | 56,521 psi | 89% | 2713 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 94% | 56,855 psi | 89% | 2677 fps | 98.1% |
| Hodgdon H4895 | <<locked>> | 86% | 57,725 psi | 90% | 2664 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 54,665 psi | 86% | 2644 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 57,667 psi | 90% | 2697 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 57,130 psi | 90% | 2749 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,549 psi | 56% | 1608 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 55,332 psi | 87% | 2618 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 54,273 psi | 85% | 2595 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 57,537 psi | 90% | 2638 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 57,508 psi | 90% | 2628 fps | 99% |
| IMR 4350 | <<locked>> | 98% | 55,912 psi | 88% | 2648 fps | 98.5% |
| IMR 4451 Enduron | <<locked>> | 94% | 57,363 psi | 90% | 2651 fps | 99% |
| IMR 4831 | <<locked>> | 98% | 53,983 psi | 85% | 2654 fps | 99.9% |
| IMR 4895 | <<locked>> | 88% | 56,739 psi | 89% | 2677 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 55,898 psi | 88% | 2605 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 57,130 psi | 90% | 2628 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 56,304 psi | 88% | 2585 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 57,348 psi | 90% | 2631 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 56,695 psi | 89% | 2641 fps | 99.6% |
| Lovex S070 | <<locked>> | 96% | 54,259 psi | 85% | 2628 fps | 98.8% |
| Norma 201 | <<locked>> | 86% | 55,521 psi | 87% | 2602 fps | 100% |
| Norma 202 | <<locked>> | 86% | 56,231 psi | 88% | 2598 fps | 100% |
| Norma 203B | <<locked>> | 88% | 54,476 psi | 85% | 2638 fps | 100% |
| Norma 204 | <<locked>> | 98% | 56,797 psi | 89% | 2697 fps | 97.6% |
| Norma MRPᴾ | <<locked>> | 100% | 46,891 psi | 73% | 2644 fps | 97.5% |
| Norma URP | <<locked>> | 98% | 56,231 psi | 88% | 2700 fps | 100% |
| Ramshot Big Game | <<locked>> | 88% | 55,390 psi | 87% | 2664 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 54,998 psi | 86% | 2700 fps | 99.4% |
| Ramshot TAC | <<locked>> | 84% | 56,260 psi | 88% | 2631 fps | 99.7% |
| Ramshot Wild Boar | <<locked>> | 84% | 56,072 psi | 88% | 2644 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,695 psi | 89% | 2608 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,071 psi | 57% | 1647 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 56,695 psi | 89% | 2644 fps | 99.3% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 56,014 psi | 88% | 2713 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 55,796 psi | 87% | 2743 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 57,159 psi | 90% | 2733 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 56,478 psi | 89% | 2762 fps | 100% |
| Rottweil R 901 | <<locked>> | 84% | 56,231 psi | 88% | 2579 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 55,999 psi | 88% | 2598 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 55,405 psi | 87% | 2635 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 53,577 psi | 84% | 2618 fps | 96% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 49,559 psi | 78% | 2615 fps | 96.7% |
| Rottweil R 907 | <<locked>> | 94% | 55,463 psi | 87% | 2625 fps | 98.4% |
| Shooters World Long Rifle | <<locked>> | 96% | 56,695 psi | 89% | 2641 fps | 99.6% |
| Shooters World Match Rifle | <<locked>> | 86% | 57,130 psi | 90% | 2628 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 57,348 psi | 90% | 2631 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 54,259 psi | 85% | 2628 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 57,450 psi | 90% | 2694 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 54,723 psi | 86% | 2608 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,434 psi | 87% | 2628 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 56,913 psi | 89% | 2539 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 57,464 psi | 90% | 2536 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 57,014 psi | 89% | 2602 fps | 98.9% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 49,081 psi | 77% | 2612 fps | 96.6% |
| Somchem S321 | <<locked>> | 82% | 57,159 psi | 90% | 2635 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 56,333 psi | 88% | 2536 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 54,331 psi | 85% | 2598 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 55,608 psi | 87% | 2635 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 54,505 psi | 85% | 2697 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,212 psi | 79% | 2595 fps | 97.6% |
| Vihtavuori N130 | <<locked>> | 82% | 56,565 psi | 89% | 2500 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 57,290 psi | 90% | 2520 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 56,115 psi | 88% | 2562 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 57,000 psi | 89% | 2579 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 57,174 psi | 90% | 2612 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 55,158 psi | 86% | 2648 fps | 99.9% |
| Vihtavuori N530 | <<locked>> | 84% | 56,434 psi | 88% | 2605 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 55,042 psi | 86% | 2579 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 54,070 psi | 85% | 2651 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,137 psi | 72% | 2595 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 55,288 psi | 87% | 2625 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 56,623 psi | 89% | 2648 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 56,521 psi | 89% | 2713 fps | 99.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,260 psi | 58% | 2549 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 86% | 55,564 psi | 87% | 2635 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 50,836 psi | 80% | 2464 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,149 psi | 68% | 2398 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,039 psi | 80% | 2543 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 42,583 psi | 67% | 2385 fps | 95.4% |
| Accurate 3100 | <<locked>> | 94% | 35,476 psi | 56% | 2346 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 40,857 psi | 64% | 2398 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 30,240 psi | 47% | 2244 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 47,108 psi | 74% | 2513 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 39,929 psi | 63% | 2375 fps | 98.7% |
| ADI AR 2209 | <<locked>> | 96% | 45,469 psi | 71% | 2539 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,240 psi | 77% | 2516 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 50,067 psi | 78% | 2490 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,192 psi | 68% | 2556 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,697 psi | 62% | 2395 fps | 99.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,685 psi | 67% | 2457 fps | 99.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 30,690 psi | 48% | 2260 fps | 95.4% |
| Alliant Reloder-17 | 73.8 gr | 80% | 34,345 psi | 54% | 2375 fps | 98.6% |
| Alliant Reloder-19 | <<locked>> | 96% | 44,715 psi | 70% | 2533 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 86% | 26,629 psi | 42% | 2178 fps | 95.1% |
| Alliant Reloder-25 | <<locked>> | 98% | 34,345 psi | 54% | 2379 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 90% | 32,735 psi | 51% | 2392 fps | 95.7% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,514 psi | 73% | 2520 fps | 99.4% |
| Bofors RP3 | <<locked>> | 80% | 39,349 psi | 62% | 2398 fps | 99.6% |
| Bofors RP7 | <<locked>> | 84% | 40,263 psi | 63% | 2375 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,792 psi | 80% | 2500 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,414 psi | 76% | 2539 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 53,795 psi | 84% | 2677 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,234 psi | 63% | 2405 fps | 97.9% |
| Hodgdon H414 | <<locked>> | 86% | 40,132 psi | 63% | 2451 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 86% | 43,845 psi | 69% | 2474 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 47,558 psi | 75% | 2523 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,166 psi | 44% | 2172 fps | 96.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,743 psi | 69% | 2500 fps | 99.9% |
| Hodgdon Superformance | 83.9 gr | 86% | 39,682 psi | 62% | 2464 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,455 psi | 41% | 1440 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,542 psi | 71% | 2477 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 47,529 psi | 74% | 2507 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,945 psi | 66% | 2408 fps | 99.2% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,498 psi | 70% | 2428 fps | 96.8% |
| IMR 4350 | <<locked>> | 88% | 40,727 psi | 64% | 2405 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 82% | 39,465 psi | 62% | 2362 fps | 95.3% |
| IMR 4831 | <<locked>> | 80% | 29,443 psi | 46% | 2208 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 43,758 psi | 69% | 2484 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 80% | 49,240 psi | 77% | 2516 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 46,398 psi | 73% | 2487 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,876 psi | 73% | 2454 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 41,916 psi | 66% | 2408 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 34,229 psi | 54% | 2260 fps | 95.2% |
| Lovex S070 | <<locked>> | 86% | 39,421 psi | 62% | 2385 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 45,818 psi | 72% | 2464 fps | 100% |
| Norma 202 | <<locked>> | 80% | 46,383 psi | 73% | 2467 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,061 psi | 66% | 2448 fps | 99.5% |
| Norma 204 | <<locked>> | 92% | 46,267 psi | 73% | 2539 fps | 95.4% |
| Norma MRP | <<locked>> | 96% | 40,727 psi | 64% | 2533 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 30,719 psi | 48% | 2251 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 41,916 psi | 66% | 2461 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 86% | 36,709 psi | 58% | 2388 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 49,197 psi | 77% | 2530 fps | 99% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,892 psi | 77% | 2546 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 53,026 psi | 83% | 2559 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,861 psi | 42% | 1476 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,596 psi | 64% | 2392 fps | 96.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,469 psi | 71% | 2556 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 36,622 psi | 57% | 2434 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 32,343 psi | 51% | 2313 fps | 95.8% |
| ReloadSwiss RS 70 | 78.7 gr | 84% | 34,621 psi | 54% | 2372 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 49,850 psi | 78% | 2493 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,729 psi | 69% | 2421 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 37,014 psi | 58% | 2349 fps | 99.1% |
| Rottweil R 904 | <<locked>> | 98% | 50,241 psi | 79% | 2569 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 96% | 43,250 psi | 68% | 2510 fps | 95% |
| Rottweil R 907 | <<locked>> | 84% | 40,263 psi | 63% | 2375 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 80% | 34,229 psi | 54% | 2260 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,398 psi | 73% | 2487 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,916 psi | 66% | 2408 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 86% | 39,421 psi | 62% | 2385 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,305 psi | 60% | 2402 fps | 98.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,514 psi | 74% | 2507 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,658 psi | 72% | 2487 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,340 psi | 74% | 2415 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,508 psi | 62% | 2297 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 38,392 psi | 60% | 2310 fps | 95.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 45,934 psi | 72% | 2559 fps | 95.8% |
| Somchem S321 | <<locked>> | 80% | 53,359 psi | 84% | 2585 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 46,746 psi | 73% | 2411 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,311 psi | 74% | 2500 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 37,768 psi | 59% | 2352 fps | 99.1% |
| Somchem S365 | <<locked>> | 80% | 27,441 psi | 43% | 2205 fps | 97.5% |
| Somchem S385 | <<locked>> | 94% | 41,075 psi | 64% | 2444 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 53,359 psi | 84% | 2461 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 47,805 psi | 75% | 2405 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,540 psi | 68% | 2398 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,990 psi | 69% | 2408 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,998 psi | 56% | 2293 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 80% | 32,111 psi | 50% | 2254 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 49,313 psi | 77% | 2510 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,395 psi | 66% | 2402 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 31,575 psi | 49% | 2254 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 86% | 28,674 psi | 45% | 2247 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,807 psi | 50% | 2231 fps | 97.9% |
| Winchester 748 | <<locked>> | 80% | 49,501 psi | 78% | 2556 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 37,637 psi | 59% | 2402 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 90% | 26,731 psi | 42% | 2247 fps | 95.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,208 psi | 71% | 2490 fps | 99.9% |
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 104 powders for .375 Rem. Ultra Mag. loaded with the .376 | 276gr | Peregrine VLR-5. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,776 fps; across all powders the maximum-charge window runs from 1,608 fps to 2,776 fps. Accurate 3100 gives the best case fill at 100 %, and 104 of the 104 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 276.0 gr projectile in 0.376" calls for a 1:15.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-19 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 70, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .375 Rem. Ultra Mag. with the .376 | 276gr | 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.