Load Specifications
Load data in caliber .45 Win. Mag. with .452 | 200gr | H&N KS KB bullet and 62 powders. The key underlying parameters are shown in the table above.
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 ≥ 60% and propellant combustion ≥ 80%. 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: 6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2² | <<locked>> | 72% | 33,547 psi | 84% | 1447 fps | 100% |
| Accurate No. 7*² | <<locked>> | 76% | 35,172 psi | 88% | 1617 fps | 90.9% |
| Accurate Solo 1000² | <<locked>> | 76% | 36,085 psi | 90% | 1375 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 80% | 35,085 psi | 88% | 1427 fps | 100% |
| ADI AP 100 | <<locked>> | 96% | 34,795 psi | 87% | 1558 fps | 98.2% |
| ADI AP 70N² | <<locked>> | 64% | 32,372 psi | 81% | 1411 fps | 100% |
| ADI APS 350² | <<locked>> | 72% | 34,722 psi | 87% | 1243 fps | 100% |
| ADI APS 450² | <<locked>> | 72% | 33,460 psi | 84% | 1263 fps | 100% |
| ADI AS 30² | <<locked>> | 76% | 34,519 psi | 87% | 1325 fps | 100% |
| ADI AS 50N² | <<locked>> | 72% | 34,316 psi | 86% | 1371 fps | 100% |
| Alliant BE-86² | <<locked>> | 76% | 33,054 psi | 83% | 1388 fps | 100% |
| Alliant BLUE DOT* | <<locked>> | 96% | 33,286 psi | 83% | 1575 fps | 88.8% |
| Alliant BULLSEYE² | <<locked>> | 68% | 32,924 psi | 83% | 1470 fps | 100% |
| Alliant Herco | <<locked>> | 96% | 35,897 psi | 90% | 1516 fps | 100% |
| Alliant POWER PISTOL | <<locked>> | 80% | 35,520 psi | 89% | 1614 fps | 97.8% |
| Alliant RED DOT² | <<locked>> | 76% | 33,040 psi | 83% | 1329 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 64% | 33,794 psi | 85% | 1486 fps | 100% |
| Alliant UNIQUE | <<locked>> | 80% | 34,809 psi | 87% | 1506 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 76% | 34,925 psi | 88% | 1365 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 96% | 36,042 psi | 90% | 1391 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 72% | 35,172 psi | 88% | 1391 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 76% | 35,070 psi | 88% | 1440 fps | 100% |
| Hodgdon Clays | <<locked>> | 84% | 35,389 psi | 89% | 1283 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 64% | 32,996 psi | 83% | 1509 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 15,679 psi | 39% | 1024 fps | 100% |
| Hodgdon Universal² | <<locked>> | 72% | 33,359 psi | 84% | 1421 fps | 100% |
| Lovex D037.1*² | <<locked>> | 76% | 35,172 psi | 88% | 1617 fps | 90.9% |
| Lovex S011² | <<locked>> | 64% | 33,736 psi | 85% | 1378 fps | 100% |
| Lovex S020² | <<locked>> | 72% | 34,606 psi | 87% | 1457 fps | 100% |
| Maxam CSB 1 | <<locked>> | 84% | 35,839 psi | 90% | 1430 fps | 100% |
| Maxam CSB 2 | <<locked>> | 80% | 35,447 psi | 89% | 1430 fps | 100% |
| Maxam CSB 3² | <<locked>> | 76% | 33,011 psi | 83% | 1368 fps | 100% |
| Maxam CSB 4² | <<locked>> | 76% | 35,607 psi | 89% | 1381 fps | 100% |
| Maxam CSB 5² | <<locked>> | 72% | 35,766 psi | 90% | 1329 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 64% | 32,982 psi | 83% | 1476 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 68% | 33,982 psi | 85% | 1394 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 13,764 psi | 35% | 1017 fps | 100% |
| ReloadSwiss RS 20 | <<locked>> | 80% | 33,895 psi | 85% | 1483 fps | 100% |
| ReloadSwiss RS 24* | <<locked>> | 80% | 32,924 psi | 83% | 1565 fps | 92.2% |
| Rottweil P 801² | <<locked>> | 64% | 34,171 psi | 86% | 1362 fps | 100% |
| Rottweil P 806 | <<locked>> | 88% | 35,534 psi | 89% | 1634 fps | 100% |
| Shooters World Major Pistol*² | <<locked>> | 76% | 35,172 psi | 88% | 1617 fps | 90.9% |
| SNPE Vectan A0 | <<locked>> | 84% | 35,998 psi | 90% | 1473 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 72% | 33,286 psi | 83% | 1381 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 76% | 36,027 psi | 90% | 1440 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 68% | 33,953 psi | 85% | 1266 fps | 100% |
| SNPE Vectan BA7 1/2 | <<locked>> | 88% | 35,186 psi | 88% | 1522 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 76% | 34,983 psi | 88% | 1434 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 76% | 35,766 psi | 90% | 1631 fps | 99% |
| Somchem MP200² | <<locked>> | 72% | 33,330 psi | 84% | 1476 fps | 100% |
| Somchem MS200² | <<locked>> | 76% | 32,880 psi | 82% | 1444 fps | 100% |
| Somchem S221² | <<locked>> | 68% | 33,286 psi | 83% | 1549 fps | 95.3% |
| Vihtavuori 3N37 | <<locked>> | 80% | 34,113 psi | 86% | 1529 fps | 100% |
| Vihtavuori 3N38* | <<locked>> | 96% | 35,186 psi | 88% | 1594 fps | 94.1% |
| Vihtavuori N105ᴾ | <<locked>> | 100% | 33,707 psi | 85% | 1627 fps | 97.1% |
| Vihtavuori N320² | <<locked>> | 72% | 34,563 psi | 87% | 1371 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 29,863 psi | 75% | 1237 fps | 100% |
| Vihtavuori N330² | <<locked>> | 72% | 33,997 psi | 85% | 1427 fps | 100% |
| Vihtavuori N340² | <<locked>> | 76% | 33,083 psi | 83% | 1447 fps | 100% |
| Vihtavuori N350 | <<locked>> | 84% | 33,112 psi | 83% | 1509 fps | 100% |
| Winchester 231² | <<locked>> | 64% | 35,781 psi | 90% | 1424 fps | 100% |
| Winchester AutoComp | <<locked>> | 80% | 34,374 psi | 86% | 1437 fps | 100% |
Start Load - Barrel Length: 6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2² | <<locked>> | 60% | 22,553 psi | 57% | 1266 fps | 99.7% |
| Accurate No. 7*² | <<locked>> | 68% | 25,846 psi | 65% | 1447 fps | 85.3% |
| Accurate Solo 1000² | <<locked>> | 60% | 23,641 psi | 59% | 1194 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 19,972 psi | 50% | 1188 fps | 100% |
| ADI AP 100*² | <<locked>> | 68% | 16,433 psi | 41% | 1171 fps | 87% |
| ADI AP 70N² | <<locked>> | 60% | 28,253 psi | 71% | 1348 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 25,889 psi | 65% | 1122 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 24,903 psi | 62% | 1142 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 23,366 psi | 59% | 1165 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 24,831 psi | 62% | 1234 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 20,450 psi | 51% | 1191 fps | 100% |
| Alliant BLUE DOT* | <<locked>> | 92% | 29,921 psi | 75% | 1512 fps | 86.8% |
| Alliant BULLSEYE² | <<locked>> | 60% | 26,034 psi | 65% | 1358 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 14,025 psi | 35% | 1086 fps | 97.5% |
| Alliant POWER PISTOL*² | <<locked>> | 60% | 18,826 psi | 47% | 1266 fps | 88.3% |
| Alliant RED DOT² | <<locked>> | 60% | 22,452 psi | 56% | 1165 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 60% | 29,588 psi | 74% | 1421 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 19,754 psi | 50% | 1240 fps | 99.9% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 22,394 psi | 56% | 1184 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 13,721 psi | 34% | 1024 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 24,323 psi | 61% | 1240 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 21,886 psi | 55% | 1237 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 20,407 psi | 51% | 1063 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 60% | 28,660 psi | 72% | 1437 fps | 98.8% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 6,469 psi | 16% | 741 fps | 99.8% |
| Hodgdon Universal² | <<locked>> | 60% | 23,279 psi | 58% | 1263 fps | 100% |
| Lovex D037.1*² | <<locked>> | 68% | 25,846 psi | 65% | 1447 fps | 85.3% |
| Lovex S011² | <<locked>> | 60% | 30,211 psi | 76% | 1329 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 23,438 psi | 59% | 1286 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 18,710 psi | 47% | 1155 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 19,914 psi | 50% | 1194 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 21,524 psi | 54% | 1191 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 23,250 psi | 58% | 1201 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 26,005 psi | 65% | 1194 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 60% | 28,834 psi | 72% | 1414 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 26,353 psi | 66% | 1286 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 5,816 psi | 15% | 725 fps | 96.5% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 18,173 psi | 46% | 1211 fps | 100% |
| ReloadSwiss RS 24*² | <<locked>> | 68% | 22,205 psi | 56% | 1348 fps | 85.1% |
| Rottweil P 801² | <<locked>> | 60% | 30,313 psi | 76% | 1312 fps | 100% |
| Rottweil P 806*² | <<locked>> | 60% | 12,415 psi | 31% | 1122 fps | 86.6% |
| Shooters World Major Pistol*² | <<locked>> | 68% | 25,846 psi | 65% | 1447 fps | 85.3% |
| SNPE Vectan A0² | <<locked>> | 60% | 18,710 psi | 47% | 1175 fps | 99.6% |
| SNPE Vectan A1² | <<locked>> | 60% | 23,554 psi | 59% | 1234 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 22,713 psi | 57% | 1237 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 27,615 psi | 69% | 1181 fps | 100% |
| SNPE Vectan BA7 1/2*² | <<locked>> | 60% | 15,621 psi | 39% | 1129 fps | 92.1% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 22,118 psi | 55% | 1234 fps | 100% |
| SNPE Vectan SP 2*² | <<locked>> | 60% | 20,407 psi | 51% | 1329 fps | 92.1% |
| Somchem MP200² | <<locked>> | 60% | 23,192 psi | 58% | 1302 fps | 100% |
| Somchem MS200² | <<locked>> | 60% | 20,784 psi | 52% | 1234 fps | 100% |
| Somchem S221*² | <<locked>> | 60% | 24,845 psi | 62% | 1391 fps | 90.8% |
| Vihtavuori 3N37² | <<locked>> | 60% | 18,159 psi | 46% | 1220 fps | 95.5% |
| Vihtavuori 3N38* | <<locked>> | 80% | 22,060 psi | 55% | 1342 fps | 86.1% |
| Vihtavuori N105* | <<locked>> | 80% | 17,695 psi | 44% | 1286 fps | 85.9% |
| Vihtavuori N320² | <<locked>> | 60% | 24,555 psi | 62% | 1234 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 11,748 psi | 29% | 915 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 23,308 psi | 58% | 1270 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 20,233 psi | 51% | 1230 fps | 100% |
| Vihtavuori N350*² | <<locked>> | 60% | 15,418 psi | 39% | 1145 fps | 93.5% |
| Winchester 231² | <<locked>> | 60% | 31,430 psi | 79% | 1365 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 19,203 psi | 48% | 1188 fps | 100% |
* not dangerous but load has suboptimal powder burnt with possible characteristics such as extensive muzzle flash or inaccurate loads.
² fill rate low - you might want to consider using a filler to ensure proper ignition.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 14 powders for .45 Win. Mag. loaded with the .452 | 200gr | H&N KS KB. Rottweil P 806 delivers the highest muzzle velocity at 1,634 fps; across all powders the maximum-charge window runs from 1,017 fps to 1,634 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 14 of the 14 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (275 MPa), the top charges use 35–90 %, leaving at least 10 % headroom. Hodgdon TrailBoss, ReloadSwiss RS 14, Vihtavuori N105 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. As outliers, Vihtavuori 3N38 burn incompletely and react more sensitively to barrel length and temperature. Hodgdon TrailBoss, ReloadSwiss RS 14, Vihtavuori N32C Tin Star stay subsonic at start load. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.