Load Specifications
Bullet Manufacturer:Peregrine
Bullet Weight:390 gr
Bullet Diameter:0.458"
Bullet Length:<<locked>>
Caliber:.460 Weath. Mag. load data
Case Length (l3):2.913"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:141.1 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:26"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:6.0
Load data in caliber .460 Weath. Mag. with .458 | 390gr | Peregrine Subsonic 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, Hodgdon CFE223 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: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 92% | 57,682 psi | 90% | 2631 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 54,679 psi | 86% | 2680 fps | 99.1% |
| Accurate 2230 | <<locked>> | 82% | 55,666 psi | 87% | 2697 fps | 99.4% |
| Accurate 2460 | <<locked>> | 88% | 56,420 psi | 88% | 2664 fps | 100% |
| Accurate 2495 | <<locked>> | 96% | 54,636 psi | 86% | 2651 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 54,056 psi | 85% | 2674 fps | 100% |
| Accurate 4064ᴾ | <<locked>> | 100% | 57,580 psi | 90% | 2730 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 42,859 psi | 67% | 2589 fps | 96.9% |
| Accurate LT-30 | <<locked>> | 84% | 54,592 psi | 86% | 2543 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 55,056 psi | 86% | 2562 fps | 100% |
| ADI AR 2206H | <<locked>> | 94% | 56,710 psi | 89% | 2726 fps | 99.7% |
| ADI AR 2207 | <<locked>> | 82% | 56,115 psi | 88% | 2556 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 57,450 psi | 90% | 2717 fps | 99.4% |
| ADI AR 2219 | <<locked>> | 84% | 54,882 psi | 86% | 2657 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 92% | 56,130 psi | 88% | 2684 fps | 100% |
| Alliant AR-Comp | <<locked>> | 92% | 55,564 psi | 87% | 2661 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 57,624 psi | 90% | 2785 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 56,072 psi | 88% | 2831 fps | 99.4% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 56,420 psi | 88% | 2736 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 86% | 54,447 psi | 85% | 2598 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 98% | 57,522 psi | 90% | 2759 fps | 99.6% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 43,671 psi | 68% | 2598 fps | 97.1% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 50,067 psi | 78% | 2743 fps | 99.5% |
| Alliant Reloder-7 | <<locked>> | 82% | 57,159 psi | 90% | 2575 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 56,927 psi | 89% | 2585 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 56,289 psi | 88% | 2740 fps | 99.1% |
| Bofors RP3ᴾ | <<locked>> | 100% | 56,985 psi | 89% | 2753 fps | 100% |
| Hodgdon Benchmark | <<locked>> | 90% | 55,100 psi | 86% | 2625 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 92% | 54,621 psi | 86% | 2713 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 90% | 56,492 psi | 89% | 2802 fps | 99.5% |
| Hodgdon H322 | <<locked>> | 88% | 56,942 psi | 89% | 2684 fps | 100% |
| Hodgdon H335 | <<locked>> | 86% | 54,360 psi | 85% | 2664 fps | 100% |
| Hodgdon H380 | <<locked>> | 98% | 55,129 psi | 86% | 2713 fps | 98.5% |
| Hodgdon H4198 | <<locked>> | 82% | 56,652 psi | 89% | 2585 fps | 100% |
| Hodgdon H4895 | <<locked>> | 94% | 57,159 psi | 90% | 2736 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 39,842 psi | 62% | 2490 fps | 97.7% |
| Hodgdon LEVERevolution | <<locked>> | 96% | 55,477 psi | 87% | 2766 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,461 psi | 54% | 1575 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 55,274 psi | 87% | 2694 fps | 99.8% |
| IMR 3031 | <<locked>> | 94% | 56,115 psi | 88% | 2720 fps | 100% |
| IMR 4064 | <<locked>> | 98% | 57,072 psi | 89% | 2700 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 94% | 54,781 psi | 86% | 2635 fps | 96.3% |
| IMR 4198 | <<locked>> | 86% | 54,911 psi | 86% | 2559 fps | 100% |
| IMR 4451 Enduronᴾ | <<locked>> | 100% | 53,432 psi | 84% | 2651 fps | 95.9% |
| IMR 4831ᴾ | <<locked>> | 100% | 41,278 psi | 65% | 2539 fps | 96.6% |
| IMR 4895 | <<locked>> | 96% | 55,376 psi | 87% | 2743 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 92% | 56,130 psi | 88% | 2684 fps | 100% |
| Lovex D073.4 | <<locked>> | 82% | 56,260 psi | 88% | 2671 fps | 100% |
| Lovex D073.5 | <<locked>> | 88% | 56,347 psi | 88% | 2674 fps | 100% |
| Lovex D073.6 | <<locked>> | 94% | 55,550 psi | 87% | 2703 fps | 100% |
| Lovex S060 | <<locked>> | 94% | 57,101 psi | 89% | 2657 fps | 99.7% |
| Lovex S062 | <<locked>> | 98% | 56,246 psi | 88% | 2700 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 48,718 psi | 76% | 2589 fps | 96.6% |
| Norma 200 | <<locked>> | 82% | 54,389 psi | 85% | 2572 fps | 100% |
| Norma 201 | <<locked>> | 94% | 55,288 psi | 87% | 2671 fps | 100% |
| Norma 202 | <<locked>> | 94% | 55,724 psi | 87% | 2680 fps | 100% |
| Norma 203B | <<locked>> | 98% | 56,507 psi | 89% | 2746 fps | 99.7% |
| Norma URPᴾ | <<locked>> | 100% | 43,468 psi | 68% | 2585 fps | 96.9% |
| Ramshot Big Game | <<locked>> | 98% | 57,130 psi | 90% | 2776 fps | 99.7% |
| Ramshot TAC | <<locked>> | 92% | 56,869 psi | 89% | 2700 fps | 98.2% |
| Ramshot Wild Boar | <<locked>> | 92% | 55,637 psi | 87% | 2720 fps | 99.6% |
| Ramshot X-Terminator | <<locked>> | 88% | 54,114 psi | 85% | 2641 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,751 psi | 54% | 1614 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 56,043 psi | 88% | 2674 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 98% | 55,956 psi | 88% | 2697 fps | 97.2% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 57,464 psi | 90% | 2825 fps | 99.6% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 53,519 psi | 84% | 2805 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 42,975 psi | 67% | 2608 fps | 96.5% |
| Rottweil R 901 | <<locked>> | 92% | 56,478 psi | 89% | 2657 fps | 100% |
| Rottweil R 902 | <<locked>> | 96% | 55,666 psi | 87% | 2667 fps | 100% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 52,910 psi | 83% | 2690 fps | 99.7% |
| Shooters World AR Plus | <<locked>> | 82% | 56,260 psi | 88% | 2671 fps | 100% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 48,718 psi | 76% | 2589 fps | 96.6% |
| Shooters World Match Rifle | <<locked>> | 94% | 55,550 psi | 87% | 2703 fps | 100% |
| Shooters World Precision | <<locked>> | 98% | 56,246 psi | 88% | 2700 fps | 100% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 56,188 psi | 88% | 2644 fps | 99.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 55,347 psi | 87% | 2303 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 55,230 psi | 87% | 2667 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 54,926 psi | 86% | 2753 fps | 99.6% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 55,434 psi | 87% | 2618 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 54,752 psi | 86% | 2677 fps | 98.3% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 54,926 psi | 86% | 2697 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 54,505 psi | 85% | 2579 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 57,159 psi | 90% | 2615 fps | 100% |
| Somchem S321 | <<locked>> | 90% | 57,508 psi | 90% | 2723 fps | 100% |
| Somchem S335 | <<locked>> | 94% | 56,550 psi | 89% | 2618 fps | 100% |
| Somchem S341 | <<locked>> | 94% | 57,638 psi | 90% | 2717 fps | 99.7% |
| Somchem S355ᴾ | <<locked>> | 100% | 53,650 psi | 84% | 2690 fps | 99.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 38,667 psi | 61% | 2539 fps | 98.8% |
| Vihtavuori N120 | <<locked>> | 82% | 55,999 psi | 88% | 2503 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 57,725 psi | 90% | 2589 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 57,595 psi | 90% | 2605 fps | 100% |
| Vihtavuori N135 | <<locked>> | 96% | 54,534 psi | 85% | 2638 fps | 100% |
| Vihtavuori N140 | <<locked>> | 96% | 56,130 psi | 88% | 2657 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 51,924 psi | 81% | 2631 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 45,803 psi | 72% | 2589 fps | 97.2% |
| Vihtavuori N530 | <<locked>> | 92% | 56,753 psi | 89% | 2684 fps | 100% |
| Vihtavuori N540 | <<locked>> | 96% | 54,201 psi | 85% | 2657 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 44,701 psi | 70% | 2592 fps | 96.9% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 47,210 psi | 74% | 2579 fps | 99.1% |
| Winchester 748 | <<locked>> | 92% | 55,680 psi | 87% | 2730 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 94% | 54,563 psi | 86% | 2707 fps | 99.8% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 40,030 psi | 63% | 2382 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 51,285 psi | 80% | 2631 fps | 98.7% |
| Accurate 2230 | <<locked>> | 80% | 51,866 psi | 81% | 2641 fps | 99% |
| Accurate 2460 | <<locked>> | 80% | 43,265 psi | 68% | 2474 fps | 99.9% |
| Accurate 2495 | <<locked>> | 80% | 32,401 psi | 51% | 2297 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 38,508 psi | 60% | 2428 fps | 99.4% |
| Accurate 4064 | <<locked>> | 80% | 30,661 psi | 48% | 2277 fps | 98.7% |
| Accurate 4350 | <<locked>> | 96% | 37,275 psi | 58% | 2484 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 80% | 48,530 psi | 76% | 2457 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 48,907 psi | 77% | 2477 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 36,695 psi | 57% | 2382 fps | 96.5% |
| ADI AR 2207 | <<locked>> | 80% | 52,968 psi | 83% | 2516 fps | 100% |
| ADI AR 2208 | <<locked>> | 84% | 35,418 psi | 56% | 2339 fps | 95.2% |
| ADI AR 2219 | <<locked>> | 80% | 47,979 psi | 75% | 2562 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 38,653 psi | 61% | 2398 fps | 98.2% |
| Alliant AR-Comp | <<locked>> | 80% | 37,362 psi | 59% | 2402 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 44,556 psi | 70% | 2579 fps | 98.9% |
| Alliant Power Pro 2000-MR | 94.6 gr | 84% | 37,623 psi | 59% | 2490 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 30,110 psi | 47% | 2260 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 45,382 psi | 71% | 2474 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 34,853 psi | 55% | 2365 fps | 95.3% |
| Alliant Reloder-16 | <<locked>> | 96% | 38,696 psi | 61% | 2493 fps | 95.5% |
| Alliant Reloder-17 | <<locked>> | 88% | 33,881 psi | 53% | 2418 fps | 95.7% |
| Alliant Reloder-7 | <<locked>> | 80% | 53,722 psi | 84% | 2533 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 47,152 psi | 74% | 2454 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 37,898 psi | 59% | 2431 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 29,327 psi | 46% | 2254 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 40,828 psi | 64% | 2398 fps | 99% |
| Hodgdon BL-C2 | <<locked>> | 80% | 36,492 psi | 57% | 2411 fps | 98.3% |
| Hodgdon CFE223 | 92.2 gr | 80% | 40,045 psi | 63% | 2530 fps | 96.9% |
| Hodgdon H322 | <<locked>> | 80% | 43,990 psi | 69% | 2500 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 44,614 psi | 70% | 2520 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 39,769 psi | 62% | 2461 fps | 95.4% |
| Hodgdon H4198 | <<locked>> | 80% | 53,359 psi | 84% | 2543 fps | 100% |
| Hodgdon H4895 | <<locked>> | 80% | 36,927 psi | 58% | 2395 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 33,098 psi | 52% | 2343 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 32,866 psi | 52% | 2356 fps | 96.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,614 psi | 40% | 1404 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 35,563 psi | 56% | 2352 fps | 96.7% |
| IMR 3031 | <<locked>> | 80% | 35,607 psi | 56% | 2402 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 34,940 psi | 55% | 2323 fps | 95.4% |
| IMR 4166 Enduron | <<locked>> | 92% | 51,358 psi | 80% | 2585 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 46,122 psi | 72% | 2438 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 98% | 50,285 psi | 79% | 2602 fps | 95.2% |
| IMR 4831 | <<locked>> | 96% | 36,347 psi | 57% | 2441 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 33,417 psi | 52% | 2346 fps | 95.6% |
| IMR 8208 XBR | <<locked>> | 80% | 38,653 psi | 61% | 2398 fps | 98.2% |
| Lovex D073.4 | <<locked>> | 80% | 52,489 psi | 82% | 2621 fps | 100% |
| Lovex D073.5 | <<locked>> | 80% | 42,946 psi | 67% | 2477 fps | 99.5% |
| Lovex D073.6 | <<locked>> | 80% | 34,838 psi | 55% | 2365 fps | 98.8% |
| Lovex S060 | <<locked>> | 80% | 37,637 psi | 59% | 2336 fps | 96.8% |
| Lovex S062 | <<locked>> | 80% | 32,416 psi | 51% | 2283 fps | 96.6% |
| Lovex S065 | <<locked>> | 96% | 43,192 psi | 68% | 2497 fps | 95.3% |
| Norma 200 | <<locked>> | 80% | 51,068 psi | 80% | 2530 fps | 100% |
| Norma 201 | <<locked>> | 80% | 35,955 psi | 56% | 2346 fps | 97.7% |
| Norma 202 | <<locked>> | 80% | 35,955 psi | 56% | 2359 fps | 99.4% |
| Norma 203B | <<locked>> | 80% | 32,082 psi | 50% | 2306 fps | 95% |
| Norma URP | <<locked>> | 96% | 38,334 psi | 60% | 2487 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 82% | 33,663 psi | 53% | 2359 fps | 95.1% |
| Ramshot TAC | <<locked>> | 84% | 43,918 psi | 69% | 2497 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 37,478 psi | 59% | 2411 fps | 96.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 41,901 psi | 66% | 2444 fps | 97.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,860 psi | 41% | 1440 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 43,352 psi | 68% | 2480 fps | 99.7% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 46,108 psi | 72% | 2543 fps | 95.1% |
| ReloadSwiss RS 52 | 89.5 gr | 82% | 35,781 psi | 56% | 2448 fps | 95.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 27,949 psi | 44% | 2264 fps | 95.5% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 40,234 psi | 63% | 2556 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 39,755 psi | 62% | 2398 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 80% | 34,200 psi | 54% | 2300 fps | 97.1% |
| Rottweil R 903 | <<locked>> | 84% | 31,444 psi | 49% | 2300 fps | 95.6% |
| Shooters World AR Plus | <<locked>> | 80% | 52,489 psi | 82% | 2621 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 96% | 43,192 psi | 68% | 2497 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 34,838 psi | 55% | 2365 fps | 98.8% |
| Shooters World Precision | <<locked>> | 80% | 32,416 psi | 51% | 2283 fps | 96.6% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 45,847 psi | 72% | 2493 fps | 99.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 52,620 psi | 82% | 2270 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 48,443 psi | 76% | 2572 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 35,099 psi | 55% | 2398 fps | 95.8% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 46,108 psi | 72% | 2490 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 41,640 psi | 65% | 2464 fps | 95.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 35,172 psi | 55% | 2352 fps | 96% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 37,768 psi | 59% | 2316 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,879 psi | 48% | 2192 fps | 99.1% |
| Somchem S321 | <<locked>> | 80% | 41,191 psi | 65% | 2470 fps | 98.9% |
| Somchem S335 | <<locked>> | 80% | 37,144 psi | 58% | 2320 fps | 99.8% |
| Somchem S341 | <<locked>> | 80% | 36,027 psi | 56% | 2362 fps | 96.1% |
| Somchem S355 | <<locked>> | 82% | 30,734 psi | 48% | 2264 fps | 95% |
| Somchem S365 | <<locked>> | 90% | 28,311 psi | 44% | 2283 fps | 95% |
| Vihtavuori N120 | <<locked>> | 80% | 52,852 psi | 83% | 2467 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 42,844 psi | 67% | 2388 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 37,811 psi | 59% | 2320 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 33,011 psi | 52% | 2300 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 33,982 psi | 53% | 2303 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 80% | 27,340 psi | 43% | 2162 fps | 95.2% |
| Vihtavuori N160 | <<locked>> | 94% | 37,942 psi | 59% | 2441 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 38,493 psi | 60% | 2392 fps | 98.3% |
| Vihtavuori N540 | <<locked>> | 80% | 32,561 psi | 51% | 2287 fps | 98.7% |
| Vihtavuori N550 | <<locked>> | 96% | 39,349 psi | 62% | 2493 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 34,098 psi | 53% | 2329 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 37,202 psi | 58% | 2428 fps | 98.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 34,258 psi | 54% | 2352 fps | 96.4% |
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 .460 Weath. Mag. loaded with the .458 | 390gr | Peregrine Subsonic. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,831 fps; across all powders the maximum-charge window runs from 1,575 fps to 2,831 fps. Accurate 4064 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 (440 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 390.0 gr projectile in 0.458" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 4064, Accurate 4350, ADI AR 2208 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, Hodgdon CFE223, ReloadSwiss RS 52 rank at the top here: for .460 Weath. Mag. with the .458 | 390gr | Peregrine Subsonic 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.