Load Specifications
Bullet:.458 | 500gr | Swift A-Frame
Bullet Manufacturer:Swift
Bullet Weight:500 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 | 500gr | Swift A-Frame bullet and 106 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: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 84% | 54,781 psi | 86% | 2264 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 56,550 psi | 89% | 2333 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 56,594 psi | 89% | 2329 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 54,940 psi | 86% | 2349 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 55,825 psi | 87% | 2346 fps | 98.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 39,813 psi | 62% | 2228 fps | 97.4% |
| Accurate 4064 | <<locked>> | 92% | 56,521 psi | 89% | 2372 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 55,941 psi | 88% | 2461 fps | 100% |
| ADI AR 2206H | <<locked>> | 88% | 57,159 psi | 90% | 2405 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 54,505 psi | 85% | 2362 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 47,863 psi | 75% | 2352 fps | 96.3% |
| ADI Benchmark 8208 | <<locked>> | 86% | 56,202 psi | 88% | 2359 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 57,130 psi | 90% | 2326 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 56,550 psi | 89% | 2516 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 54,520 psi | 85% | 2382 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 55,158 psi | 86% | 2402 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 53,679 psi | 84% | 2461 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 96% | 54,839 psi | 86% | 2493 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 46,804 psi | 73% | 2346 fps | 96.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,363 psi | 60% | 2254 fps | 99.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 42,482 psi | 67% | 2395 fps | 99.2% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 56,782 psi | 89% | 2425 fps | 100% |
| Bofors RP3 | <<locked>> | 92% | 54,926 psi | 86% | 2395 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 55,114 psi | 86% | 2375 fps | 98.6% |
| Hodgdon Benchmark | <<locked>> | 84% | 54,549 psi | 85% | 2300 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 55,434 psi | 87% | 2392 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 57,450 psi | 90% | 2477 fps | 100% |
| Hodgdon H322 | <<locked>> | 82% | 56,971 psi | 89% | 2343 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 56,043 psi | 88% | 2411 fps | 100% |
| Hodgdon H414 | <<locked>> | 98% | 55,259 psi | 87% | 2461 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 96% | 56,188 psi | 88% | 2428 fps | 98.3% |
| Hodgdon H4895 | <<locked>> | 88% | 57,711 psi | 90% | 2411 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 50,053 psi | 78% | 2356 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 56,942 psi | 89% | 2444 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 55,869 psi | 88% | 2500 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,534 psi | 56% | 1398 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 55,477 psi | 87% | 2372 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 54,201 psi | 85% | 2346 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 57,493 psi | 90% | 2388 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 90% | 57,609 psi | 90% | 2379 fps | 99.2% |
| IMR 4350ᴾ | <<locked>> | 100% | 55,114 psi | 86% | 2402 fps | 98.6% |
| IMR 4451 Enduron | <<locked>> | 96% | 57,087 psi | 89% | 2405 fps | 99.1% |
| IMR 4831ᴾ | <<locked>> | 100% | 52,808 psi | 83% | 2408 fps | 100% |
| IMR 4895 | <<locked>> | 90% | 56,550 psi | 89% | 2428 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 56,202 psi | 88% | 2359 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 56,304 psi | 88% | 2346 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 56,869 psi | 89% | 2382 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 56,739 psi | 89% | 2339 fps | 100% |
| Lovex S062 | <<locked>> | 92% | 57,217 psi | 90% | 2382 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 56,173 psi | 88% | 2395 fps | 99.7% |
| Lovex S070ᴾ | <<locked>> | 100% | 56,971 psi | 89% | 2428 fps | 99.3% |
| Norma 201 | <<locked>> | 88% | 55,898 psi | 88% | 2356 fps | 100% |
| Norma 202 | <<locked>> | 88% | 56,405 psi | 88% | 2352 fps | 100% |
| Norma 203B | <<locked>> | 90% | 54,346 psi | 85% | 2392 fps | 100% |
| Norma 204ᴾ | <<locked>> | 100% | 55,709 psi | 87% | 2448 fps | 97.7% |
| Norma MRPᴾ | <<locked>> | 100% | 42,714 psi | 67% | 2356 fps | 96.9% |
| Norma URPᴾ | <<locked>> | 100% | 54,824 psi | 86% | 2448 fps | 100% |
| Ramshot Big Game | <<locked>> | 90% | 54,592 psi | 86% | 2415 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 53,577 psi | 84% | 2451 fps | 99.5% |
| Ramshot TAC | <<locked>> | 86% | 56,231 psi | 88% | 2385 fps | 99.8% |
| Ramshot Wild Boar | <<locked>> | 86% | 55,956 psi | 88% | 2398 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 84% | 56,985 psi | 89% | 2365 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,056 psi | 56% | 1430 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 55,593 psi | 87% | 2336 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 56,362 psi | 88% | 2398 fps | 99.5% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 55,593 psi | 87% | 2461 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 54,679 psi | 86% | 2487 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 55,376 psi | 87% | 2484 fps | 100% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 55,259 psi | 87% | 2510 fps | 100% |
| Rottweil R 901 | <<locked>> | 86% | 56,869 psi | 89% | 2329 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 56,362 psi | 88% | 2352 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 54,810 psi | 86% | 2388 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 45,353 psi | 71% | 2329 fps | 96.2% |
| Rottweil R 907 | <<locked>> | 96% | 55,114 psi | 86% | 2375 fps | 98.6% |
| Shooters World Long Rifle | <<locked>> | 98% | 56,173 psi | 88% | 2395 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 88% | 56,869 psi | 89% | 2382 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 57,217 psi | 90% | 2382 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 56,971 psi | 89% | 2428 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 56,463 psi | 88% | 2444 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 54,824 psi | 86% | 2369 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 55,448 psi | 87% | 2385 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 57,435 psi | 90% | 2293 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 57,464 psi | 90% | 2293 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 56,652 psi | 89% | 2359 fps | 99.1% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 44,962 psi | 70% | 2323 fps | 96.1% |
| Somchem S321 | <<locked>> | 84% | 57,377 psi | 90% | 2388 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 56,797 psi | 89% | 2293 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 54,215 psi | 85% | 2356 fps | 100% |
| Somchem S355 | <<locked>> | 94% | 55,114 psi | 86% | 2385 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 49,211 psi | 77% | 2405 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 45,861 psi | 72% | 2313 fps | 97.2% |
| Vihtavuori N130 | <<locked>> | 84% | 57,377 psi | 90% | 2257 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 57,624 psi | 90% | 2274 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 56,043 psi | 88% | 2313 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 56,768 psi | 89% | 2333 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 56,594 psi | 89% | 2365 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 57,667 psi | 90% | 2441 fps | 100% |
| Vihtavuori N530 | <<locked>> | 86% | 56,594 psi | 89% | 2356 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 54,810 psi | 86% | 2336 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 56,492 psi | 89% | 2451 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 41,771 psi | 65% | 2316 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 54,172 psi | 85% | 2382 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 56,550 psi | 89% | 2402 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 55,390 psi | 87% | 2464 fps | 99.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,229 psi | 54% | 2270 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 88% | 55,201 psi | 87% | 2392 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% | 48,559 psi | 76% | 2192 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 53,011 psi | 83% | 2293 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 41,162 psi | 65% | 2139 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 47,950 psi | 75% | 2264 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 40,451 psi | 63% | 2123 fps | 95.4% |
| Accurate 3100 | <<locked>> | 94% | 32,590 psi | 51% | 2093 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 38,914 psi | 61% | 2139 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 28,442 psi | 45% | 2008 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 44,701 psi | 70% | 2238 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 38,043 psi | 60% | 2116 fps | 98.8% |
| ADI AR 2209 | <<locked>> | 98% | 44,947 psi | 70% | 2306 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,731 psi | 73% | 2238 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 47,036 psi | 74% | 2211 fps | 100% |
| Alliant Power Pro 2000-MR | 89.6 gr | 80% | 40,364 psi | 63% | 2274 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,623 psi | 59% | 2136 fps | 99.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,393 psi | 63% | 2188 fps | 99.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 29,370 psi | 46% | 2021 fps | 95.8% |
| Alliant Reloder-17 | 88.3 gr | 80% | 32,358 psi | 51% | 2123 fps | 98.6% |
| Alliant Reloder-19 | <<locked>> | 98% | 44,034 psi | 69% | 2300 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 86% | 25,295 psi | 40% | 1949 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 90% | 30,371 psi | 48% | 2136 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 43,729 psi | 69% | 2247 fps | 99.4% |
| Bofors RP3 | <<locked>> | 80% | 37,202 psi | 58% | 2142 fps | 99.7% |
| Bofors RP7 | <<locked>> | 84% | 38,189 psi | 60% | 2116 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,472 psi | 76% | 2221 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 45,339 psi | 71% | 2260 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 50,053 psi | 78% | 2382 fps | 100% |
| Hodgdon H322 | <<locked>> | 80% | 53,461 psi | 84% | 2303 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 38,014 psi | 60% | 2146 fps | 98% |
| Hodgdon H414 | <<locked>> | 86% | 37,376 psi | 59% | 2185 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 86% | 40,973 psi | 64% | 2201 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 45,092 psi | 71% | 2244 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 26,818 psi | 42% | 1939 fps | 96.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,915 psi | 64% | 2228 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 88% | 39,392 psi | 62% | 2244 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,600 psi | 42% | 1247 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,221 psi | 68% | 2205 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 44,759 psi | 70% | 2228 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,900 psi | 63% | 2142 fps | 99.2% |
| IMR 4166 Enduron | <<locked>> | 80% | 42,366 psi | 66% | 2162 fps | 96.8% |
| IMR 4350 | <<locked>> | 88% | 38,218 psi | 60% | 2142 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 82% | 37,420 psi | 59% | 2103 fps | 95.3% |
| IMR 4831 | <<locked>> | 80% | 27,804 psi | 44% | 1975 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 41,379 psi | 65% | 2215 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 80% | 46,731 psi | 73% | 2238 fps | 100% |
| Lovex D073.5 | <<locked>> | 80% | 52,750 psi | 83% | 2303 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 43,714 psi | 69% | 2218 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 44,744 psi | 70% | 2178 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 39,856 psi | 62% | 2146 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 32,692 psi | 51% | 2018 fps | 95.4% |
| Lovex S070 | <<locked>> | 84% | 34,983 psi | 55% | 2087 fps | 95% |
| Norma 201 | <<locked>> | 80% | 43,758 psi | 69% | 2192 fps | 100% |
| Norma 202 | <<locked>> | 80% | 44,034 psi | 69% | 2195 fps | 100% |
| Norma 203B | <<locked>> | 80% | 39,769 psi | 62% | 2178 fps | 99.5% |
| Norma 204 | <<locked>> | 94% | 45,745 psi | 72% | 2306 fps | 95.7% |
| Norma MRP | <<locked>> | 96% | 37,478 psi | 59% | 2257 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 29,051 psi | 46% | 2011 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 39,059 psi | 61% | 2192 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 86% | 34,345 psi | 54% | 2133 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 46,369 psi | 73% | 2251 fps | 98.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 45,963 psi | 72% | 2267 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 50,154 psi | 79% | 2280 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,905 psi | 42% | 1276 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 52,228 psi | 82% | 2297 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 38,377 psi | 60% | 2129 fps | 96.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 42,395 psi | 66% | 2277 fps | 99.6% |
| ReloadSwiss RS 60 | 88.3 gr | 80% | 34,476 psi | 54% | 2175 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 30,240 psi | 47% | 2067 fps | 95.8% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 32,489 psi | 51% | 2119 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 47,718 psi | 75% | 2215 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,640 psi | 65% | 2152 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 35,012 psi | 55% | 2096 fps | 99.2% |
| Rottweil R 905 | <<locked>> | 98% | 42,511 psi | 67% | 2280 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 84% | 38,189 psi | 60% | 2116 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 32,692 psi | 51% | 2018 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 43,714 psi | 69% | 2218 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 39,856 psi | 62% | 2146 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 84% | 34,983 psi | 55% | 2087 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,897 psi | 56% | 2139 fps | 98.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 44,773 psi | 70% | 2231 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,076 psi | 68% | 2215 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 45,194 psi | 71% | 2142 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,579 psi | 59% | 2041 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 36,172 psi | 57% | 2057 fps | 95.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 42,148 psi | 66% | 2277 fps | 95.3% |
| Somchem S321 | <<locked>> | 80% | 50,372 psi | 79% | 2306 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 44,672 psi | 70% | 2146 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 44,541 psi | 70% | 2228 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 35,897 psi | 56% | 2100 fps | 99.2% |
| Somchem S365 | <<locked>> | 80% | 26,049 psi | 41% | 1972 fps | 97.8% |
| Somchem S385 | <<locked>> | 94% | 37,884 psi | 59% | 2182 fps | 95% |
| Vihtavuori N130 | <<locked>> | 80% | 50,952 psi | 80% | 2185 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 45,513 psi | 71% | 2136 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 41,234 psi | 65% | 2133 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,669 psi | 65% | 2142 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 34,055 psi | 53% | 2044 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 80% | 30,371 psi | 48% | 2011 fps | 96% |
| Vihtavuori N530 | <<locked>> | 80% | 46,775 psi | 73% | 2234 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 40,118 psi | 63% | 2139 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 29,776 psi | 47% | 2014 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 86% | 26,832 psi | 42% | 2011 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,182 psi | 47% | 1995 fps | 98% |
| Winchester 748 | <<locked>> | 80% | 46,383 psi | 73% | 2274 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 37,536 psi | 59% | 2188 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 90% | 25,150 psi | 39% | 2011 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 42,467 psi | 67% | 2218 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 106 powders for .460 Weath. Mag. loaded with the .458 | 500gr | Swift A-Frame. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,516 fps; across all powders the maximum-charge window runs from 1,398 fps to 2,516 fps. Accurate 3100 gives the best case fill at 100 %, and 106 of the 106 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 500.0 gr projectile in 0.458" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 4350, ADI AR 2209 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 .460 Weath. Mag. with the .458 | 500gr | Swift A-Frame 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.