Load Specifications
Bullet:.458 | 450gr | Barnes X S
Bullet Manufacturer:Barnes
Bullet Weight:450 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:1:24.0
Load data in caliber .460 Weath. Mag. with .458 | 450gr | Barnes X S bullet and 105 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: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 86% | 56,637 psi | 89% | 2392 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 55,071 psi | 86% | 2421 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 55,579 psi | 87% | 2425 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 56,434 psi | 88% | 2477 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 57,159 psi | 90% | 2457 fps | 97.3% |
| Accurate 4064 | <<locked>> | 92% | 55,085 psi | 86% | 2464 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 53,156 psi | 83% | 2533 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 88% | 55,027 psi | 86% | 2487 fps | 100% |
| ADI AR 2208 | <<locked>> | 94% | 55,448 psi | 87% | 2480 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 88% | 57,392 psi | 90% | 2484 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 54,534 psi | 85% | 2415 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 56,014 psi | 88% | 2533 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 57,348 psi | 90% | 2635 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 55,448 psi | 87% | 2503 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 56,144 psi | 88% | 2392 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 56,173 psi | 88% | 2523 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 51,285 psi | 80% | 2530 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 98% | 55,506 psi | 87% | 2612 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,304 psi | 58% | 2316 fps | 98.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 40,785 psi | 64% | 2441 fps | 97.3% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 57,072 psi | 89% | 2375 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 57,711 psi | 90% | 2546 fps | 99.9% |
| Bofors RP3 | <<locked>> | 94% | 56,260 psi | 88% | 2520 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 56,289 psi | 88% | 2487 fps | 97.5% |
| Hodgdon Benchmark | <<locked>> | 86% | 56,028 psi | 88% | 2425 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 56,623 psi | 89% | 2516 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 54,549 psi | 85% | 2556 fps | 99.9% |
| Hodgdon H322 | <<locked>> | 82% | 54,708 psi | 86% | 2431 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 55,608 psi | 87% | 2457 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 57,290 psi | 90% | 2533 fps | 99.6% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 55,651 psi | 87% | 2569 fps | 98.1% |
| Hodgdon H4350 | <<locked>> | 98% | 56,739 psi | 89% | 2533 fps | 97% |
| Hodgdon H4895 | <<locked>> | 88% | 55,593 psi | 87% | 2493 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 47,659 psi | 75% | 2425 fps | 99.8% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 57,464 psi | 90% | 2566 fps | 100% |
| Hodgdon Superformanceᴾ | <<locked>> | 100% | 56,681 psi | 89% | 2605 fps | 97.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,708 psi | 56% | 1463 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 56,362 psi | 88% | 2490 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 55,172 psi | 86% | 2474 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 55,187 psi | 86% | 2464 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 90% | 55,550 psi | 87% | 2448 fps | 97.9% |
| IMR 4198 | <<locked>> | 82% | 55,564 psi | 87% | 2346 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 52,504 psi | 82% | 2461 fps | 96.9% |
| IMR 4451 Enduron | <<locked>> | 96% | 54,752 psi | 86% | 2470 fps | 97.7% |
| IMR 4831ᴾ | <<locked>> | 100% | 50,299 psi | 79% | 2477 fps | 99.4% |
| IMR 4895 | <<locked>> | 92% | 57,551 psi | 90% | 2549 fps | 100% |
| IMR 8208 XBR | <<locked>> | 88% | 57,392 psi | 90% | 2484 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 54,868 psi | 86% | 2434 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 54,679 psi | 86% | 2467 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 54,737 psi | 86% | 2418 fps | 100% |
| Lovex S062 | <<locked>> | 92% | 55,274 psi | 87% | 2467 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 57,290 psi | 90% | 2507 fps | 99.1% |
| Lovex S070ᴾ | <<locked>> | 100% | 54,853 psi | 86% | 2497 fps | 98.1% |
| Norma 201 | <<locked>> | 90% | 57,522 psi | 90% | 2480 fps | 100% |
| Norma 202 | <<locked>> | 90% | 57,566 psi | 90% | 2477 fps | 100% |
| Norma 203B | <<locked>> | 92% | 55,361 psi | 87% | 2513 fps | 100% |
| Norma URPᴾ | <<locked>> | 100% | 52,098 psi | 82% | 2520 fps | 99.4% |
| Ramshot Big Game | <<locked>> | 92% | 55,303 psi | 87% | 2536 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 50,894 psi | 80% | 2513 fps | 98.1% |
| Ramshot TAC | <<locked>> | 88% | 57,624 psi | 90% | 2507 fps | 99.3% |
| Ramshot Wild Boar | <<locked>> | 88% | 57,029 psi | 89% | 2520 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 84% | 54,998 psi | 86% | 2444 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,274 psi | 57% | 1499 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 57,014 psi | 89% | 2464 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 57,464 psi | 90% | 2513 fps | 98.7% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 56,304 psi | 88% | 2582 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 55,288 psi | 87% | 2608 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 52,112 psi | 82% | 2549 fps | 99.4% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 52,431 psi | 82% | 2569 fps | 99.1% |
| Rottweil R 901 | <<locked>> | 86% | 56,101 psi | 88% | 2425 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 54,766 psi | 86% | 2438 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 56,130 psi | 88% | 2513 fps | 100% |
| Rottweil R 907 | <<locked>> | 98% | 56,289 psi | 88% | 2487 fps | 97.5% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 57,290 psi | 90% | 2507 fps | 99.1% |
| Shooters World Match Rifle | <<locked>> | 88% | 54,679 psi | 86% | 2467 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 55,274 psi | 87% | 2467 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 54,853 psi | 86% | 2497 fps | 98.1% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 56,695 psi | 89% | 2441 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 57,014 psi | 89% | 2562 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 56,608 psi | 89% | 2405 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 56,260 psi | 88% | 2487 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 56,492 psi | 89% | 2503 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 55,651 psi | 87% | 2379 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 55,201 psi | 87% | 2379 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 54,389 psi | 85% | 2425 fps | 97.7% |
| Somchem S321 | <<locked>> | 84% | 55,361 psi | 87% | 2474 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 55,085 psi | 86% | 2382 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 55,434 psi | 87% | 2477 fps | 100% |
| Somchem S355 | <<locked>> | 96% | 56,362 psi | 88% | 2507 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 46,775 psi | 73% | 2477 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 55,535 psi | 87% | 2343 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 55,521 psi | 87% | 2362 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 57,305 psi | 90% | 2441 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 54,549 psi | 85% | 2418 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 57,508 psi | 90% | 2484 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 54,621 psi | 86% | 2513 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 86% | 54,621 psi | 86% | 2441 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 56,130 psi | 88% | 2461 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 53,679 psi | 84% | 2523 fps | 99.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,103 psi | 63% | 2382 fps | 98.4% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 55,013 psi | 86% | 2497 fps | 100% |
| Winchester 748 | <<locked>> | 88% | 57,450 psi | 90% | 2526 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 55,811 psi | 87% | 2572 fps | 98.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,533 psi | 53% | 2313 fps | 98% |
| Winchester StaBALL Match | <<locked>> | 90% | 56,260 psi | 88% | 2513 fps | 100% |
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% | 47,587 psi | 75% | 2280 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 51,808 psi | 81% | 2379 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 41,350 psi | 65% | 2234 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,746 psi | 73% | 2349 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 47,718 psi | 75% | 2323 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 39,030 psi | 61% | 2231 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 32,155 psi | 50% | 2172 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 43,526 psi | 68% | 2313 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 80% | 37,217 psi | 58% | 2185 fps | 97.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,339 psi | 71% | 2313 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 45,324 psi | 71% | 2300 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 52,649 psi | 83% | 2487 fps | 100% |
| Alliant Power Pro 2000-MR | 88 gr | 80% | 39,204 psi | 61% | 2336 fps | 97.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,941 psi | 58% | 2211 fps | 98.8% |
| Alliant Reloder-10x | <<locked>> | 80% | 53,098 psi | 83% | 2356 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,494 psi | 62% | 2260 fps | 98.2% |
| Alliant Reloder-16 | <<locked>> | 84% | 32,663 psi | 51% | 2172 fps | 95.2% |
| Alliant Reloder-17 | <<locked>> | 80% | 31,981 psi | 50% | 2185 fps | 96.9% |
| Alliant Reloder-23 | <<locked>> | 92% | 30,023 psi | 47% | 2142 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 96% | 36,071 psi | 57% | 2339 fps | 95.6% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 53,795 psi | 84% | 2336 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,206 psi | 66% | 2313 fps | 98.2% |
| Bofors RP3 | <<locked>> | 80% | 36,724 psi | 58% | 2218 fps | 98.8% |
| Bofors RP7 | <<locked>> | 90% | 44,730 psi | 70% | 2313 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 47,253 psi | 74% | 2303 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 44,048 psi | 69% | 2339 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 47,805 psi | 75% | 2457 fps | 99.5% |
| Hodgdon H322 | <<locked>> | 80% | 51,387 psi | 81% | 2388 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 52,272 psi | 82% | 2415 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 37,376 psi | 59% | 2215 fps | 96.4% |
| Hodgdon H414 | <<locked>> | 90% | 41,075 psi | 64% | 2339 fps | 95% |
| Hodgdon H4350 | <<locked>> | 92% | 47,413 psi | 74% | 2398 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 43,888 psi | 69% | 2323 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 28,485 psi | 45% | 2044 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,595 psi | 62% | 2300 fps | 99.3% |
| Hodgdon Superformance | <<locked>> | 94% | 46,441 psi | 73% | 2451 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,716 psi | 42% | 1302 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,047 psi | 66% | 2280 fps | 99.3% |
| IMR 3031 | <<locked>> | 80% | 43,279 psi | 68% | 2313 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,059 psi | 61% | 2211 fps | 98.1% |
| IMR 4166 Enduron | <<locked>> | 82% | 43,903 psi | 69% | 2270 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 52,678 psi | 83% | 2310 fps | 100% |
| IMR 4350 | <<locked>> | 94% | 44,222 psi | 69% | 2333 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 88% | 43,540 psi | 68% | 2297 fps | 95.4% |
| IMR 4831 | <<locked>> | 86% | 33,069 psi | 52% | 2175 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 40,350 psi | 63% | 2287 fps | 98.8% |
| IMR 8208 XBR | <<locked>> | 80% | 45,339 psi | 71% | 2313 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 80% | 51,445 psi | 81% | 2388 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 42,743 psi | 67% | 2300 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 43,685 psi | 68% | 2254 fps | 99.2% |
| Lovex S062 | <<locked>> | 80% | 39,291 psi | 62% | 2221 fps | 99.4% |
| Lovex S065 | <<locked>> | 84% | 36,579 psi | 57% | 2175 fps | 95% |
| Lovex S070 | <<locked>> | 90% | 41,089 psi | 64% | 2280 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 43,178 psi | 68% | 2274 fps | 99.7% |
| Norma 202 | <<locked>> | 80% | 43,062 psi | 67% | 2280 fps | 100% |
| Norma 203B | <<locked>> | 80% | 38,899 psi | 61% | 2251 fps | 98.5% |
| Norma URP | <<locked>> | 84% | 32,518 psi | 51% | 2165 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 80% | 37,971 psi | 60% | 2260 fps | 98.1% |
| Ramshot Hunter | <<locked>> | 92% | 40,176 psi | 63% | 2329 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 45,150 psi | 71% | 2320 fps | 97.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,541 psi | 70% | 2343 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 48,747 psi | 76% | 2356 fps | 99.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,195 psi | 43% | 1339 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 50,517 psi | 79% | 2379 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 40,059 psi | 63% | 2241 fps | 95.3% |
| ReloadSwiss RS 52 | 85.3 gr | 80% | 40,756 psi | 64% | 2346 fps | 98.5% |
| ReloadSwiss RS 60 | 86.7 gr | 80% | 33,852 psi | 53% | 2241 fps | 99.5% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 33,808 psi | 53% | 2224 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 36,172 psi | 57% | 2270 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 47,529 psi | 74% | 2306 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,350 psi | 65% | 2238 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 80% | 34,722 psi | 54% | 2172 fps | 98.2% |
| Rottweil R 907 | <<locked>> | 90% | 44,730 psi | 70% | 2313 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 84% | 36,579 psi | 57% | 2175 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,743 psi | 67% | 2300 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 39,291 psi | 62% | 2221 fps | 99.4% |
| Shooters World SW4350 | <<locked>> | 90% | 41,089 psi | 64% | 2280 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 53,243 psi | 83% | 2395 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,114 psi | 55% | 2208 fps | 97.5% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 53,316 psi | 84% | 2365 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,642 psi | 68% | 2300 fps | 97.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,901 psi | 66% | 2287 fps | 98.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,208 psi | 69% | 2224 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,854 psi | 58% | 2116 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 42,641 psi | 67% | 2254 fps | 95.3% |
| Somchem S321 | <<locked>> | 80% | 48,805 psi | 76% | 2385 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 43,976 psi | 69% | 2231 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 43,047 psi | 67% | 2297 fps | 99% |
| Somchem S355 | <<locked>> | 80% | 35,534 psi | 56% | 2175 fps | 98.1% |
| Somchem S365 | <<locked>> | 80% | 26,339 psi | 41% | 2041 fps | 96.1% |
| Vihtavuori N130 | <<locked>> | 80% | 49,647 psi | 78% | 2270 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 44,251 psi | 69% | 2218 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 40,306 psi | 63% | 2215 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,654 psi | 64% | 2221 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,649 psi | 53% | 2119 fps | 98.8% |
| Vihtavuori N160 | <<locked>> | 84% | 33,910 psi | 53% | 2165 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 45,397 psi | 71% | 2310 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 39,276 psi | 62% | 2218 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 33,272 psi | 52% | 2169 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 90% | 30,139 psi | 47% | 2165 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,994 psi | 47% | 2054 fps | 96.2% |
| Winchester 748 | <<locked>> | 80% | 44,730 psi | 70% | 2352 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 41,176 psi | 65% | 2343 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 94% | 28,369 psi | 44% | 2159 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,205 psi | 65% | 2290 fps | 99.2% |
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 105 powders for .460 Weath. Mag. loaded with the .458 | 450gr | Barnes X S. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,635 fps; across all powders the maximum-charge window runs from 1,463 fps to 2,635 fps. Accurate 4350 gives the best case fill at 100 %, and 105 of the 105 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. The 450.0 gr projectile in 0.458" calls for a 1:24.0 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 .460 Weath. Mag. with the .458 | 450gr | Barnes X S 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.