Load Specifications
Load data in caliber .45 Win. Mag. with .452 | 200gr | H&N RN 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% | 32,634 psi | 82% | 1427 fps | 100% |
| Accurate No. 7*² | <<locked>> | 76% | 34,185 psi | 86% | 1594 fps | 90.2% |
| Accurate Solo 1000² | <<locked>> | 76% | 35,636 psi | 89% | 1365 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 80% | 34,708 psi | 87% | 1417 fps | 100% |
| ADI AP 100 | <<locked>> | 96% | 33,982 psi | 85% | 1539 fps | 97.8% |
| ADI AP 70N² | <<locked>> | 68% | 35,476 psi | 89% | 1444 fps | 100% |
| ADI APS 350² | <<locked>> | 72% | 34,098 psi | 85% | 1230 fps | 100% |
| ADI APS 450² | <<locked>> | 72% | 32,953 psi | 83% | 1250 fps | 100% |
| ADI AS 30² | <<locked>> | 76% | 34,534 psi | 87% | 1319 fps | 100% |
| ADI AS 50N² | <<locked>> | 72% | 33,823 psi | 85% | 1362 fps | 100% |
| Alliant BE-86² | <<locked>> | 76% | 32,358 psi | 81% | 1375 fps | 100% |
| Alliant BLUE DOT* | <<locked>> | 96% | 32,329 psi | 81% | 1549 fps | 88% |
| Alliant BULLSEYE² | <<locked>> | 72% | 36,085 psi | 90% | 1509 fps | 100% |
| Alliant Herco | <<locked>> | 96% | 34,896 psi | 87% | 1496 fps | 100% |
| Alliant POWER PISTOL | <<locked>> | 80% | 34,592 psi | 87% | 1594 fps | 97.4% |
| Alliant RED DOT | <<locked>> | 80% | 35,737 psi | 90% | 1358 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 64% | 32,924 psi | 83% | 1467 fps | 100% |
| Alliant UNIQUE | <<locked>> | 80% | 34,040 psi | 85% | 1490 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 76% | 34,534 psi | 87% | 1358 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 96% | 35,462 psi | 89% | 1381 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 72% | 34,766 psi | 87% | 1381 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 76% | 34,360 psi | 86% | 1424 fps | 100% |
| Hodgdon Clays² | <<locked>> | 72% | 34,679 psi | 87% | 1250 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 64% | 32,547 psi | 82% | 1496 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 15,214 psi | 38% | 1010 fps | 100% |
| Hodgdon Universal² | <<locked>> | 76% | 35,969 psi | 90% | 1450 fps | 100% |
| Lovex D037.1*² | <<locked>> | 76% | 34,185 psi | 86% | 1594 fps | 90.2% |
| Lovex S011² | <<locked>> | 64% | 33,301 psi | 83% | 1368 fps | 100% |
| Lovex S020² | <<locked>> | 72% | 33,736 psi | 85% | 1440 fps | 100% |
| Maxam CSB 1 | <<locked>> | 84% | 35,041 psi | 88% | 1414 fps | 100% |
| Maxam CSB 2 | <<locked>> | 80% | 34,490 psi | 86% | 1414 fps | 100% |
| Maxam CSB 3² | <<locked>> | 76% | 32,590 psi | 82% | 1358 fps | 100% |
| Maxam CSB 4² | <<locked>> | 76% | 35,143 psi | 88% | 1368 fps | 100% |
| Maxam CSB 5² | <<locked>> | 72% | 35,230 psi | 88% | 1316 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 64% | 32,401 psi | 81% | 1463 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 68% | 32,982 psi | 83% | 1378 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 13,605 psi | 34% | 1010 fps | 100% |
| ReloadSwiss RS 20 | <<locked>> | 80% | 33,127 psi | 83% | 1470 fps | 100% |
| ReloadSwiss RS 24* | <<locked>> | 80% | 32,242 psi | 81% | 1549 fps | 91.6% |
| Rottweil P 801² | <<locked>> | 64% | 33,257 psi | 83% | 1345 fps | 100% |
| Rottweil P 806 | <<locked>> | 88% | 34,606 psi | 87% | 1614 fps | 99.9% |
| Shooters World Major Pistol*² | <<locked>> | 76% | 34,185 psi | 86% | 1594 fps | 90.2% |
| SNPE Vectan A0 | <<locked>> | 84% | 35,810 psi | 90% | 1463 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 72% | 33,040 psi | 83% | 1375 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 76% | 35,360 psi | 89% | 1427 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 68% | 33,460 psi | 84% | 1257 fps | 100% |
| SNPE Vectan BA7 1/2 | <<locked>> | 88% | 34,330 psi | 86% | 1503 fps | 99.9% |
| SNPE Vectan BA9 1/2² | <<locked>> | 76% | 34,200 psi | 86% | 1417 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 76% | 34,795 psi | 87% | 1608 fps | 98.7% |
| Somchem MP200² | <<locked>> | 72% | 32,619 psi | 82% | 1460 fps | 100% |
| Somchem MS200 | <<locked>> | 80% | 35,955 psi | 90% | 1480 fps | 100% |
| Somchem S221*² | <<locked>> | 68% | 32,605 psi | 82% | 1532 fps | 94.8% |
| Vihtavuori 3N37 | <<locked>> | 80% | 33,634 psi | 84% | 1516 fps | 100% |
| Vihtavuori 3N38* | <<locked>> | 96% | 34,534 psi | 87% | 1575 fps | 93.6% |
| Vihtavuori N105ᴾ | <<locked>> | 100% | 32,953 psi | 83% | 1614 fps | 96.7% |
| Vihtavuori N320² | <<locked>> | 72% | 34,055 psi | 85% | 1362 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 29,501 psi | 74% | 1227 fps | 100% |
| Vihtavuori N330² | <<locked>> | 72% | 33,620 psi | 84% | 1417 fps | 100% |
| Vihtavuori N340² | <<locked>> | 76% | 32,314 psi | 81% | 1434 fps | 100% |
| Vihtavuori N350 | <<locked>> | 88% | 35,897 psi | 90% | 1542 fps | 100% |
| Winchester 231² | <<locked>> | 64% | 34,969 psi | 88% | 1411 fps | 100% |
| Winchester AutoComp | <<locked>> | 80% | 33,808 psi | 85% | 1424 fps | 100% |
Start Load - Barrel Length: 6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2² | <<locked>> | 60% | 22,075 psi | 55% | 1250 fps | 99.6% |
| Accurate No. 7*² | <<locked>> | 72% | 29,428 psi | 74% | 1512 fps | 87.6% |
| Accurate Solo 1000² | <<locked>> | 60% | 23,453 psi | 59% | 1188 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 19,464 psi | 49% | 1175 fps | 100% |
| ADI AP 100*² | <<locked>> | 68% | 15,940 psi | 40% | 1152 fps | 86.2% |
| ADI AP 70N² | <<locked>> | 60% | 27,789 psi | 70% | 1335 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 25,657 psi | 64% | 1115 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 24,729 psi | 62% | 1135 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 23,163 psi | 58% | 1155 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 24,671 psi | 62% | 1227 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 20,073 psi | 50% | 1181 fps | 100% |
| Alliant BLUE DOT* | <<locked>> | 92% | 29,037 psi | 73% | 1490 fps | 86.1% |
| Alliant BULLSEYE² | <<locked>> | 60% | 25,541 psi | 64% | 1342 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 13,692 psi | 34% | 1070 fps | 97.1% |
| Alliant POWER PISTOL*² | <<locked>> | 60% | 18,550 psi | 47% | 1253 fps | 87.9% |
| Alliant RED DOT² | <<locked>> | 60% | 21,741 psi | 55% | 1152 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 60% | 29,167 psi | 73% | 1411 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 19,305 psi | 48% | 1224 fps | 99.7% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 21,857 psi | 55% | 1171 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 13,343 psi | 33% | 1010 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 23,786 psi | 60% | 1227 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 21,509 psi | 54% | 1224 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 26,049 psi | 65% | 1132 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 60% | 28,166 psi | 71% | 1424 fps | 98.5% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 6,425 psi | 16% | 738 fps | 99.7% |
| Hodgdon Universal² | <<locked>> | 60% | 23,148 psi | 58% | 1257 fps | 100% |
| Lovex D037.1*² | <<locked>> | 72% | 29,428 psi | 74% | 1512 fps | 87.6% |
| Lovex S011² | <<locked>> | 60% | 29,733 psi | 75% | 1319 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 22,989 psi | 58% | 1273 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 18,217 psi | 46% | 1142 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 19,348 psi | 49% | 1181 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 21,364 psi | 54% | 1184 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 23,076 psi | 58% | 1194 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 25,802 psi | 65% | 1188 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 60% | 28,181 psi | 71% | 1398 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 25,817 psi | 65% | 1276 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 5,773 psi | 14% | 722 fps | 96.3% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 17,709 psi | 44% | 1198 fps | 100% |
| ReloadSwiss RS 24*² | <<locked>> | 72% | 24,613 psi | 62% | 1401 fps | 86.9% |
| Rottweil P 801² | <<locked>> | 60% | 29,834 psi | 75% | 1299 fps | 100% |
| Rottweil P 806*² | <<locked>> | 60% | 12,053 psi | 30% | 1106 fps | 85.9% |
| Shooters World Major Pistol*² | <<locked>> | 72% | 29,428 psi | 74% | 1512 fps | 87.6% |
| SNPE Vectan A0² | <<locked>> | 60% | 18,637 psi | 47% | 1168 fps | 99.5% |
| SNPE Vectan A1² | <<locked>> | 60% | 23,177 psi | 58% | 1224 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 22,350 psi | 56% | 1227 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 27,499 psi | 69% | 1178 fps | 100% |
| SNPE Vectan BA7 1/2*² | <<locked>> | 60% | 15,360 psi | 39% | 1115 fps | 91.6% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 21,654 psi | 54% | 1220 fps | 100% |
| SNPE Vectan SP 2*² | <<locked>> | 60% | 19,841 psi | 50% | 1309 fps | 91.4% |
| Somchem MP200² | <<locked>> | 60% | 22,466 psi | 56% | 1283 fps | 99.9% |
| Somchem MS200² | <<locked>> | 60% | 20,697 psi | 52% | 1227 fps | 100% |
| Somchem S221*² | <<locked>> | 60% | 24,439 psi | 61% | 1378 fps | 90.3% |
| Vihtavuori 3N37*² | <<locked>> | 60% | 17,579 psi | 44% | 1204 fps | 94.9% |
| Vihtavuori 3N38* | <<locked>> | 80% | 21,408 psi | 54% | 1322 fps | 85.3% |
| Vihtavuori N105* | <<locked>> | 80% | 17,332 psi | 43% | 1273 fps | 85.2% |
| Vihtavuori N320² | <<locked>> | 60% | 23,946 psi | 60% | 1217 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 11,502 psi | 29% | 906 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 22,785 psi | 57% | 1257 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 19,798 psi | 50% | 1214 fps | 99.9% |
| Vihtavuori N350*² | <<locked>> | 60% | 15,098 psi | 38% | 1132 fps | 93% |
| Winchester 231² | <<locked>> | 60% | 31,067 psi | 78% | 1358 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 18,840 psi | 47% | 1175 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 62 powders for .45 Win. Mag. loaded with the .452 | 200gr | H&N RN KB. Rottweil P 806 delivers the highest muzzle velocity at 1,614 fps; across all powders the maximum-charge window runs from 1,010 fps to 1,614 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 24 of the 62 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (275 MPa), the top charges use 34–90 %, 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, Accurate No. 7, Alliant BLUE DOT, Lovex D037.1 burn incompletely and react more sensitively to barrel length and temperature. ADI APS 350, Alliant Herco, Baschieri & Pellagri 102 Pistol 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.