Load Specifications
Load data in caliber .458 Win.Mag. with .458 | 370gr | CutEdge DGBR-HP bullet and 50 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, ADI AR 2219 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>> | 92% | 55,811 psi | 89% | 2346 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 43,874 psi | 70% | 2277 fps | 99.4% |
| Accurate 2460ᴾ | <<locked>> | 100% | 48,762 psi | 78% | 2365 fps | 98% |
| Accurate 2495ᴾ | <<locked>> | 100% | 31,575 psi | 51% | 2156 fps | 97.7% |
| Accurate 2520ᴾ | <<locked>> | 100% | 41,959 psi | 67% | 2306 fps | 96.3% |
| Accurate LT-30 | <<locked>> | 98% | 56,028 psi | 90% | 2346 fps | 99.7% |
| Accurate LT-32 | <<locked>> | 96% | 53,185 psi | 85% | 2313 fps | 98.2% |
| ADI AR 2205 | <<locked>> | 84% | 54,766 psi | 88% | 2218 fps | 100% |
| ADI AR 2207 | <<locked>> | 96% | 54,288 psi | 87% | 2375 fps | 100% |
| ADI AR 2219 | <<locked>> | 98% | 53,142 psi | 85% | 2434 fps | 99.5% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 40,741 psi | 65% | 2303 fps | 100% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 50,908 psi | 82% | 2385 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 94% | 53,374 psi | 86% | 2352 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 98% | 53,853 psi | 86% | 2343 fps | 99.6% |
| Hodgdon Benchmarkᴾ | <<locked>> | 100% | 47,630 psi | 76% | 2293 fps | 96.1% |
| Hodgdon CFE BLK | <<locked>> | 82% | 53,345 psi | 86% | 2359 fps | 96.5% |
| Hodgdon H322ᴾ | <<locked>> | 100% | 50,937 psi | 82% | 2408 fps | 99.3% |
| Hodgdon H335ᴾ | <<locked>> | 100% | 52,069 psi | 83% | 2428 fps | 98.7% |
| Hodgdon H4198 | <<locked>> | 94% | 54,940 psi | 88% | 2346 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,111 psi | 50% | 1371 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 38,609 psi | 62% | 2277 fps | 98% |
| IMR 4198ᴾ | <<locked>> | 100% | 53,417 psi | 86% | 2362 fps | 100% |
| IMR 4227 | <<locked>> | 90% | 55,071 psi | 88% | 2313 fps | 100% |
| Lovex D060 | <<locked>> | 84% | 55,158 psi | 88% | 2349 fps | 100% |
| Lovex D073.4 | <<locked>> | 96% | 54,215 psi | 87% | 2434 fps | 98.3% |
| Lovex D073.5ᴾ | <<locked>> | 100% | 49,081 psi | 79% | 2365 fps | 96.8% |
| Lovex S053 | <<locked>> | 92% | 56,130 psi | 90% | 2300 fps | 100% |
| Norma 200 | <<locked>> | 98% | 54,447 psi | 87% | 2408 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 39,175 psi | 63% | 2244 fps | 96.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 30,705 psi | 49% | 1404 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 90% | 54,462 psi | 87% | 2346 fps | 100% |
| ReloadSwiss RS 40ᴾ | <<locked>> | 100% | 50,473 psi | 81% | 2382 fps | 97.6% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 43,076 psi | 69% | 2274 fps | 97.1% |
| Shooters World AR Plus | <<locked>> | 96% | 54,215 psi | 87% | 2434 fps | 98.3% |
| Shooters World Buffalo Rifle | <<locked>> | 84% | 55,158 psi | 88% | 2349 fps | 100% |
| Shooters World SOCOM | <<locked>> | 82% | 52,953 psi | 85% | 2290 fps | 100% |
| Shooters World Tactical Rifleᴾ | <<locked>> | 100% | 55,927 psi | 90% | 2398 fps | 96.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 94% | 53,795 psi | 86% | 2136 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 98% | 53,258 psi | 85% | 2438 fps | 98.8% |
| SNPE Vectan SP 3ᴾ | <<locked>> | 100% | 52,591 psi | 84% | 2392 fps | 99.8% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 43,468 psi | 70% | 2218 fps | 97.1% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 34,751 psi | 56% | 2087 fps | 95.8% |
| Somchem S321ᴾ | <<locked>> | 100% | 47,413 psi | 76% | 2362 fps | 95.8% |
| Somchem S335ᴾ | <<locked>> | 100% | 41,379 psi | 66% | 2215 fps | 97.6% |
| Vihtavuori N110 | <<locked>> | 86% | 55,564 psi | 89% | 2215 fps | 100% |
| Vihtavuori N120 | <<locked>> | 96% | 54,447 psi | 87% | 2333 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 49,168 psi | 79% | 2306 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 42,554 psi | 68% | 2224 fps | 99.1% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 34,664 psi | 56% | 2178 fps | 98.1% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 37,521 psi | 60% | 2185 fps | 96.1% |
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% | 37,434 psi | 60% | 2096 fps | 99.1% |
| Accurate 2015 | <<locked>> | 84% | 26,455 psi | 42% | 1955 fps | 95.1% |
| Accurate 2460 | <<locked>> | 92% | 36,941 psi | 59% | 2185 fps | 95.4% |
| Accurate 2495 | <<locked>> | 94% | 25,701 psi | 41% | 2024 fps | 95.5% |
| Accurate 2520 | <<locked>> | 98% | 39,044 psi | 63% | 2260 fps | 95.5% |
| Accurate LT-30 | <<locked>> | 80% | 32,372 psi | 52% | 1988 fps | 95.5% |
| Accurate LT-32 | <<locked>> | 86% | 39,392 psi | 63% | 2113 fps | 95.4% |
| ADI AR 2205 | <<locked>> | 80% | 48,588 psi | 78% | 2146 fps | 100% |
| ADI AR 2207 | <<locked>> | 80% | 33,054 psi | 53% | 2077 fps | 100% |
| ADI AR 2219 | 60 gr | 84% | 33,301 psi | 53% | 2119 fps | 95.5% |
| Alliant AR-Comp | <<locked>> | 82% | 23,148 psi | 37% | 1916 fps | 95.8% |
| Alliant Reloder-10x | <<locked>> | 80% | 27,282 psi | 44% | 1982 fps | 96.8% |
| Alliant Reloder-7 | <<locked>> | 80% | 34,563 psi | 55% | 2077 fps | 99.1% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 30,139 psi | 48% | 1972 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 98% | 44,773 psi | 72% | 2254 fps | 95.4% |
| Hodgdon CFE BLK | <<locked>> | 80% | 50,038 psi | 80% | 2316 fps | 95.9% |
| Hodgdon H322 | <<locked>> | 86% | 32,387 psi | 52% | 2100 fps | 95.1% |
| Hodgdon H335 | <<locked>> | 90% | 37,173 psi | 60% | 2201 fps | 95.6% |
| Hodgdon H4198 | <<locked>> | 80% | 35,795 psi | 57% | 2060 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,684 psi | 36% | 1220 fps | 100% |
| IMR 3031 | <<locked>> | 92% | 30,226 psi | 48% | 2106 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 30,008 psi | 48% | 1988 fps | 98.3% |
| IMR 4227 | <<locked>> | 80% | 40,741 psi | 65% | 2129 fps | 100% |
| Lovex D060 | <<locked>> | 80% | 48,994 psi | 79% | 2270 fps | 100% |
| Lovex D073.4 | <<locked>> | 88% | 40,625 psi | 65% | 2244 fps | 95.7% |
| Lovex D073.5 | <<locked>> | 96% | 42,467 psi | 68% | 2274 fps | 95.4% |
| Lovex S053 | <<locked>> | 80% | 39,784 psi | 64% | 2096 fps | 100% |
| Norma 200 | <<locked>> | 80% | 30,661 psi | 49% | 2047 fps | 98.5% |
| Norma 202 | <<locked>> | 98% | 36,898 psi | 59% | 2205 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,495 psi | 36% | 1253 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 39,943 psi | 64% | 2156 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 41,568 psi | 67% | 2251 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 94% | 35,897 psi | 58% | 2149 fps | 95.1% |
| Shooters World AR Plus | 65.2 gr | 88% | 40,625 psi | 65% | 2244 fps | 95.7% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 48,994 psi | 79% | 2270 fps | 100% |
| Shooters World SOCOM | <<locked>> | 80% | 49,371 psi | 79% | 2247 fps | 100% |
| Shooters World Tactical Rifle | <<locked>> | 96% | 48,646 psi | 78% | 2310 fps | 95% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 37,231 psi | 60% | 1936 fps | 100% |
| SNPE Vectan SP 10 | 63.5 gr | 86% | 35,549 psi | 57% | 2165 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 30,095 psi | 48% | 2024 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 36,129 psi | 58% | 2100 fps | 95.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 32,706 psi | 52% | 2047 fps | 95.1% |
| Somchem S321 | <<locked>> | 98% | 44,222 psi | 71% | 2316 fps | 95% |
| Somchem S335 | <<locked>> | 92% | 32,343 psi | 52% | 2057 fps | 95.1% |
| Vihtavuori N110 | <<locked>> | 80% | 46,775 psi | 75% | 2116 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 33,315 psi | 53% | 2051 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 26,600 psi | 43% | 1916 fps | 96.1% |
| Vihtavuori N133 | <<locked>> | 86% | 27,818 psi | 45% | 1952 fps | 95.2% |
| Vihtavuori N135 | <<locked>> | 92% | 27,021 psi | 43% | 2011 fps | 95.3% |
| Vihtavuori N140 | <<locked>> | 98% | 35,201 psi | 56% | 2142 fps | 95.3% |
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 76 powders for .458 Win.Mag. loaded with the .458 | 370gr | CutEdge DGBR-HP. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,448 fps; across all powders the maximum-charge window runs from 1,371 fps to 2,448 fps. Accurate 2015 gives the best case fill at 100 %, and 76 of the 76 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 47–90 %, 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. SNPE Vectan SP 10, ADI AR 2219, Shooters World AR Plus rank at the top here: for .458 Win.Mag. with the .458 | 370gr | CutEdge DGBR-HP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2200, Accurate 2230, Accurate 4064 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.