Load Specifications
Load data in caliber .458 Win.Mag. with .458 | 405gr | CamPro FCP RNFP bullet and 61 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are SNPE Vectan SP 10 and Shooters World AR Plus.
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.
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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 88% | 54,070 psi | 87% | 2221 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 50,140 psi | 80% | 2254 fps | 100% |
| Accurate 2230 | <<locked>> | 92% | 53,069 psi | 85% | 2323 fps | 95.9% |
| Accurate 2460ᴾ | <<locked>> | 100% | 55,869 psi | 90% | 2346 fps | 99.6% |
| Accurate 2495ᴾ | <<locked>> | 100% | 38,101 psi | 61% | 2162 fps | 99.6% |
| Accurate 2520ᴾ | <<locked>> | 100% | 48,617 psi | 78% | 2297 fps | 98.7% |
| Accurate 4064ᴾ | <<locked>> | 100% | 35,520 psi | 57% | 2133 fps | 97.3% |
| Accurate LT-30 | <<locked>> | 94% | 54,578 psi | 88% | 2228 fps | 99.9% |
| Accurate LT-32 | <<locked>> | 94% | 55,100 psi | 88% | 2238 fps | 99.2% |
| ADI AR 2205 | <<locked>> | 82% | 55,941 psi | 90% | 2123 fps | 100% |
| ADI AR 2207 | <<locked>> | 92% | 53,911 psi | 86% | 2257 fps | 100% |
| ADI AR 2219 | <<locked>> | 96% | 55,724 psi | 89% | 2359 fps | 100% |
| ADI Benchmark 8208ᴾ | <<locked>> | 100% | 49,458 psi | 79% | 2267 fps | 97.1% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 46,195 psi | 74% | 2277 fps | 100% |
| Alliant Power Pro 1200-Rᴾ | <<locked>> | 100% | 56,391 psi | 90% | 2434 fps | 97.9% |
| Alliant Reloder-10x | <<locked>> | 98% | 54,070 psi | 87% | 2306 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 92% | 55,854 psi | 90% | 2267 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 96% | 55,956 psi | 90% | 2267 fps | 100% |
| Hodgdon Benchmarkᴾ | <<locked>> | 100% | 53,084 psi | 85% | 2270 fps | 98.2% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 46,354 psi | 74% | 2287 fps | 97.3% |
| Hodgdon H322 | <<locked>> | 98% | 53,417 psi | 86% | 2333 fps | 99.9% |
| Hodgdon H335 | <<locked>> | 98% | 54,781 psi | 88% | 2359 fps | 99.6% |
| Hodgdon H4198 | <<locked>> | 90% | 53,519 psi | 86% | 2231 fps | 99.7% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 46,456 psi | 74% | 2260 fps | 95.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,198 psi | 52% | 1322 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 44,063 psi | 71% | 2267 fps | 99.7% |
| IMR 4198 | <<locked>> | 98% | 55,738 psi | 89% | 2280 fps | 100% |
| IMR 4227 | <<locked>> | 86% | 53,693 psi | 86% | 2188 fps | 100% |
| IMR 8208 XBRᴾ | <<locked>> | 100% | 49,458 psi | 79% | 2267 fps | 97.1% |
| Lovex D073.4 | <<locked>> | 92% | 53,534 psi | 86% | 2323 fps | 99% |
| Lovex D073.5ᴾ | <<locked>> | 100% | 56,202 psi | 90% | 2349 fps | 98.9% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 43,004 psi | 69% | 2234 fps | 97.8% |
| Lovex S053 | <<locked>> | 88% | 55,317 psi | 89% | 2178 fps | 100% |
| Norma 200 | <<locked>> | 94% | 54,636 psi | 88% | 2293 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 45,107 psi | 72% | 2211 fps | 96.4% |
| Norma 202ᴾ | <<locked>> | 100% | 44,860 psi | 72% | 2231 fps | 98.7% |
| Ramshot X-Terminatorᴾ | <<locked>> | 100% | 55,419 psi | 89% | 2316 fps | 96.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,169 psi | 52% | 1355 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 86% | 53,447 psi | 86% | 2221 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 98% | 53,258 psi | 85% | 2316 fps | 98.9% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 49,168 psi | 79% | 2257 fps | 99% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 42,540 psi | 68% | 2165 fps | 95.7% |
| Shooters World AR Plus | <<locked>> | 92% | 53,534 psi | 86% | 2323 fps | 99% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 43,004 psi | 69% | 2234 fps | 97.8% |
| Shooters World Tactical Rifle | <<locked>> | 96% | 54,592 psi | 88% | 2290 fps | 97.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 92% | 55,869 psi | 90% | 2047 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 96% | 56,086 psi | 90% | 2365 fps | 99.7% |
| SNPE Vectan SP 3 | <<locked>> | 98% | 55,535 psi | 89% | 2320 fps | 100% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 48,849 psi | 78% | 2195 fps | 99% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 39,001 psi | 63% | 2073 fps | 98.2% |
| Somchem S321ᴾ | <<locked>> | 100% | 53,998 psi | 87% | 2349 fps | 98.2% |
| Somchem S335ᴾ | <<locked>> | 100% | 46,934 psi | 75% | 2195 fps | 99.3% |
| Vihtavuori N110 | <<locked>> | 82% | 54,491 psi | 87% | 2090 fps | 100% |
| Vihtavuori N120 | <<locked>> | 92% | 53,998 psi | 87% | 2215 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 54,911 psi | 88% | 2264 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 47,863 psi | 77% | 2195 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 39,769 psi | 64% | 2165 fps | 99.7% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 42,540 psi | 68% | 2175 fps | 98.5% |
| Vihtavuori N530ᴾ | <<locked>> | 100% | 50,125 psi | 80% | 2270 fps | 97.3% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 40,799 psi | 65% | 2165 fps | 97.7% |
| Winchester 748ᴾ | <<locked>> | 100% | 47,834 psi | 77% | 2300 fps | 97.8% |
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 1680 | <<locked>> | 80% | 41,800 psi | 67% | 2067 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 27,093 psi | 43% | 1877 fps | 96.7% |
| Accurate 2230 | <<locked>> | 90% | 49,414 psi | 79% | 2277 fps | 95.2% |
| Accurate 2460 | <<locked>> | 84% | 32,808 psi | 53% | 2011 fps | 95.4% |
| Accurate 2495 | <<locked>> | 84% | 22,452 psi | 36% | 1841 fps | 95.1% |
| Accurate 2520 | <<locked>> | 90% | 34,447 psi | 55% | 2080 fps | 95.6% |
| Accurate 4064 | <<locked>> | 94% | 29,341 psi | 47% | 2011 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 80% | 35,781 psi | 57% | 1965 fps | 97.8% |
| Accurate LT-32 | <<locked>> | 80% | 36,187 psi | 58% | 1965 fps | 95.8% |
| ADI AR 2205 | <<locked>> | 80% | 52,794 psi | 85% | 2090 fps | 100% |
| ADI AR 2207 | <<locked>> | 80% | 37,623 psi | 60% | 2047 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 32,909 psi | 53% | 2021 fps | 96.8% |
| ADI Benchmark 8208 | <<locked>> | 94% | 41,133 psi | 66% | 2146 fps | 95.2% |
| Alliant AR-Comp | <<locked>> | 80% | 24,990 psi | 40% | 1883 fps | 98.2% |
| Alliant Power Pro 1200-R | <<locked>> | 92% | 43,613 psi | 70% | 2257 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 31,459 psi | 50% | 1975 fps | 99% |
| Alliant Reloder-7 | <<locked>> | 80% | 38,957 psi | 62% | 2051 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 33,881 psi | 54% | 1959 fps | 97.5% |
| Hodgdon Benchmark | <<locked>> | 90% | 39,494 psi | 63% | 2077 fps | 95.5% |
| Hodgdon BL-C2 | <<locked>> | 94% | 37,942 psi | 61% | 2152 fps | 95.1% |
| Hodgdon H322 | <<locked>> | 80% | 30,356 psi | 49% | 1965 fps | 95.9% |
| Hodgdon H335 | <<locked>> | 82% | 32,416 psi | 52% | 2014 fps | 95.4% |
| Hodgdon H4198 | <<locked>> | 80% | 39,508 psi | 63% | 2034 fps | 98.1% |
| Hodgdon H4895 | <<locked>> | 98% | 43,613 psi | 70% | 2218 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,772 psi | 38% | 1178 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 26,963 psi | 43% | 1936 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 33,402 psi | 54% | 1965 fps | 99.7% |
| IMR 4227 | <<locked>> | 80% | 45,005 psi | 72% | 2087 fps | 100% |
| IMR 8208 XBR | <<locked>> | 94% | 41,133 psi | 66% | 2146 fps | 95.2% |
| Lovex D073.4 | <<locked>> | 80% | 35,215 psi | 56% | 2054 fps | 95.5% |
| Lovex D073.5 | <<locked>> | 88% | 37,217 psi | 60% | 2090 fps | 95.3% |
| Lovex D073.6 | <<locked>> | 94% | 34,998 psi | 56% | 2103 fps | 95.7% |
| Lovex S053 | <<locked>> | 80% | 44,005 psi | 71% | 2047 fps | 100% |
| Norma 200 | <<locked>> | 80% | 35,491 psi | 57% | 2034 fps | 99.8% |
| Norma 201 | <<locked>> | 96% | 40,016 psi | 64% | 2133 fps | 95.1% |
| Norma 202 | <<locked>> | 88% | 30,850 psi | 49% | 1988 fps | 95% |
| Ramshot X-Terminator | <<locked>> | 96% | 48,907 psi | 78% | 2234 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,569 psi | 38% | 1204 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 44,483 psi | 71% | 2113 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 36,303 psi | 58% | 2067 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 86% | 32,764 psi | 53% | 1988 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 98% | 40,074 psi | 64% | 2126 fps | 95% |
| Shooters World AR Plus | 60 gr | 80% | 35,215 psi | 56% | 2054 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 94% | 34,998 psi | 56% | 2103 fps | 95.7% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 44,512 psi | 71% | 2159 fps | 95.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 40,973 psi | 66% | 1883 fps | 100% |
| SNPE Vectan SP 10 | 59.9 gr | 80% | 33,243 psi | 53% | 2024 fps | 95.7% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 32,039 psi | 51% | 1972 fps | 97.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 31,850 psi | 51% | 1929 fps | 95.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 29,066 psi | 47% | 1886 fps | 95.2% |
| Somchem S321 | <<locked>> | 92% | 41,176 psi | 66% | 2175 fps | 95.7% |
| Somchem S335 | <<locked>> | 84% | 29,066 psi | 47% | 1893 fps | 95.2% |
| Vihtavuori N110 | <<locked>> | 80% | 51,488 psi | 83% | 2057 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 37,782 psi | 61% | 2014 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 30,356 psi | 49% | 1906 fps | 98.4% |
| Vihtavuori N133 | <<locked>> | 80% | 26,426 psi | 42% | 1831 fps | 96% |
| Vihtavuori N135 | <<locked>> | 84% | 24,540 psi | 39% | 1857 fps | 95.6% |
| Vihtavuori N140 | <<locked>> | 90% | 31,270 psi | 50% | 1978 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 94% | 41,118 psi | 66% | 2142 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 92% | 31,879 psi | 51% | 2005 fps | 95% |
| Winchester 748 | <<locked>> | 94% | 39,421 psi | 63% | 2169 fps | 95.8% |
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 61 powders for .458 Win.Mag. loaded with the .458 | 405gr | CamPro FCP RNFP. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,434 fps; across all powders the maximum-charge window runs from 1,322 fps to 2,434 fps. Accurate 2015 gives the best case fill at 100 %, and 61 of the 61 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 52–90 %, leaving at least 10 % headroom. Accurate 2015, Accurate 2460, Accurate 2495 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. Hodgdon CFE223, SNPE Vectan SP 10, Shooters World AR Plus rank at the top here: for .458 Win.Mag. with the .458 | 405gr | CamPro FCP RNFP 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.