Load Specifications
Load data in caliber .45 Win. Mag. with .451 | 185gr | Speer TMJ-M bullet and 61 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Rottweil P 806, Vihtavuori N350 and SNPE Vectan BA7 1/2.
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% | 32,198 psi | 81% | 1470 fps | 100% |
| Accurate Solo 1000² | <<locked>> | 76% | 34,664 psi | 87% | 1401 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 80% | 33,852 psi | 85% | 1457 fps | 100% |
| ADI AP 100 | <<locked>> | 96% | 32,895 psi | 82% | 1568 fps | 96.4% |
| ADI AP 70N² | <<locked>> | 68% | 35,099 psi | 88% | 1490 fps | 100% |
| ADI APS 350² | <<locked>> | 72% | 33,707 psi | 85% | 1270 fps | 100% |
| ADI APS 450² | <<locked>> | 76% | 35,201 psi | 88% | 1325 fps | 100% |
| ADI AS 30² | <<locked>> | 76% | 33,953 psi | 85% | 1358 fps | 100% |
| ADI AS 50N² | <<locked>> | 72% | 33,837 psi | 85% | 1411 fps | 100% |
| Alliant BE-86 | <<locked>> | 80% | 35,128 psi | 88% | 1460 fps | 100% |
| Alliant BLUE DOT*ᴾ | <<locked>> | 100% | 35,157 psi | 88% | 1640 fps | 87.6% |
| Alliant BULLSEYE² | <<locked>> | 72% | 35,534 psi | 89% | 1555 fps | 100% |
| Alliant Green Dot² | <<locked>> | 76% | 33,866 psi | 85% | 1414 fps | 100% |
| Alliant Herco | <<locked>> | 96% | 34,679 psi | 87% | 1542 fps | 100% |
| Alliant POWER PISTOL | <<locked>> | 80% | 33,866 psi | 85% | 1631 fps | 96.1% |
| Alliant RED DOT | <<locked>> | 80% | 35,636 psi | 89% | 1404 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 68% | 35,969 psi | 90% | 1565 fps | 100% |
| Alliant UNIQUE | <<locked>> | 80% | 33,533 psi | 84% | 1535 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 76% | 33,736 psi | 85% | 1394 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 96% | 34,490 psi | 86% | 1417 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 72% | 34,011 psi | 85% | 1421 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 76% | 33,808 psi | 85% | 1467 fps | 100% |
| Hodgdon Clays² | <<locked>> | 72% | 34,272 psi | 86% | 1289 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 64% | 31,618 psi | 79% | 1526 fps | 98.6% |
| Hodgdon Longshot² | <<locked>> | 64% | 35,027 psi | 88% | 1578 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 15,722 psi | 39% | 1053 fps | 100% |
| Hodgdon Universal² | <<locked>> | 76% | 36,085 psi | 90% | 1503 fps | 100% |
| Lovex S011² | <<locked>> | 64% | 32,837 psi | 82% | 1411 fps | 100% |
| Lovex S020² | <<locked>> | 72% | 33,040 psi | 83% | 1480 fps | 100% |
| Maxam CSB 1 | <<locked>> | 84% | 34,272 psi | 86% | 1457 fps | 100% |
| Maxam CSB 2 | <<locked>> | 80% | 33,968 psi | 85% | 1457 fps | 100% |
| Maxam CSB 3 | <<locked>> | 80% | 35,346 psi | 89% | 1444 fps | 100% |
| Maxam CSB 4² | <<locked>> | 76% | 34,258 psi | 86% | 1407 fps | 100% |
| Maxam CSB 5² | <<locked>> | 72% | 34,853 psi | 87% | 1358 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 68% | 35,781 psi | 90% | 1562 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 68% | 33,156 psi | 83% | 1427 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 14,417 psi | 36% | 1053 fps | 100% |
| ReloadSwiss RS 20 | <<locked>> | 84% | 35,636 psi | 89% | 1558 fps | 100% |
| ReloadSwiss RS 24* | <<locked>> | 84% | 34,896 psi | 87% | 1637 fps | 91.3% |
| Rottweil P 801² | <<locked>> | 64% | 33,533 psi | 84% | 1394 fps | 100% |
| Rottweil P 806 | <<locked>> | 88% | 33,663 psi | 84% | 1654 fps | 99.5% |
| SNPE Vectan A0 | <<locked>> | 84% | 34,534 psi | 87% | 1499 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 76% | 35,578 psi | 89% | 1457 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 76% | 34,563 psi | 87% | 1467 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 68% | 33,083 psi | 83% | 1299 fps | 100% |
| SNPE Vectan BA7 1/2 | <<locked>> | 88% | 33,808 psi | 85% | 1542 fps | 99.5% |
| SNPE Vectan BA9 1/2² | <<locked>> | 76% | 33,518 psi | 84% | 1460 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 76% | 33,779 psi | 85% | 1644 fps | 97.6% |
| Somchem MP200² | <<locked>> | 76% | 35,766 psi | 90% | 1555 fps | 100% |
| Somchem MS200 | <<locked>> | 80% | 35,288 psi | 88% | 1522 fps | 100% |
| Somchem S221*² | <<locked>> | 68% | 32,184 psi | 81% | 1568 fps | 93.2% |
| Vihtavuori 3N37 | <<locked>> | 80% | 32,576 psi | 82% | 1552 fps | 99.7% |
| Vihtavuori 3N38* | <<locked>> | 96% | 33,112 psi | 83% | 1598 fps | 91.3% |
| Vihtavuori N105*ᴾ | <<locked>> | 100% | 31,270 psi | 78% | 1631 fps | 94.6% |
| Vihtavuori N320² | <<locked>> | 72% | 33,779 psi | 85% | 1407 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 29,341 psi | 74% | 1266 fps | 100% |
| Vihtavuori N330² | <<locked>> | 72% | 32,779 psi | 82% | 1460 fps | 100% |
| Vihtavuori N340 | <<locked>> | 80% | 35,056 psi | 88% | 1522 fps | 100% |
| Vihtavuori N350 | <<locked>> | 88% | 35,085 psi | 88% | 1581 fps | 100% |
| Winchester 231² | <<locked>> | 64% | 34,200 psi | 86% | 1450 fps | 100% |
| Winchester AutoComp | <<locked>> | 80% | 32,938 psi | 83% | 1463 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2² | <<locked>> | 60% | 21,944 psi | 55% | 1286 fps | 99% |
| Accurate Solo 1000² | <<locked>> | 60% | 23,250 psi | 58% | 1227 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 19,479 psi | 49% | 1211 fps | 100% |
| ADI AP 100*² | <<locked>> | 72% | 17,970 psi | 45% | 1240 fps | 86.7% |
| ADI AP 70N² | <<locked>> | 60% | 28,050 psi | 70% | 1385 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 25,324 psi | 63% | 1148 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 24,468 psi | 61% | 1168 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 23,279 psi | 58% | 1194 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 24,816 psi | 62% | 1270 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 19,986 psi | 50% | 1214 fps | 100% |
| Alliant BLUE DOT* | <<locked>> | 96% | 31,633 psi | 79% | 1578 fps | 85.7% |
| Alliant BULLSEYE² | <<locked>> | 60% | 25,237 psi | 63% | 1381 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 22,829 psi | 57% | 1237 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 14,315 psi | 36% | 1115 fps | 96.6% |
| Alliant POWER PISTOL*² | <<locked>> | 60% | 18,463 psi | 46% | 1286 fps | 86% |
| Alliant RED DOT² | <<locked>> | 60% | 22,321 psi | 56% | 1198 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 60% | 28,384 psi | 71% | 1444 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 19,667 psi | 49% | 1266 fps | 99.4% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 21,886 psi | 55% | 1211 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 13,793 psi | 35% | 1053 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 23,728 psi | 59% | 1270 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 21,727 psi | 54% | 1266 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 25,672 psi | 64% | 1168 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 60% | 27,412 psi | 69% | 1450 fps | 97.3% |
| Hodgdon Longshot² | <<locked>> | 60% | 30,458 psi | 76% | 1506 fps | 99.2% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 7,223 psi | 18% | 778 fps | 99.9% |
| Hodgdon Universal² | <<locked>> | 60% | 23,134 psi | 58% | 1296 fps | 100% |
| Lovex S011² | <<locked>> | 60% | 28,863 psi | 72% | 1355 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 22,713 psi | 57% | 1309 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 18,333 psi | 46% | 1181 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 19,711 psi | 49% | 1224 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 21,335 psi | 53% | 1224 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 22,916 psi | 57% | 1230 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 25,556 psi | 64% | 1227 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 60% | 27,688 psi | 69% | 1434 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 26,150 psi | 66% | 1325 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 6,788 psi | 17% | 771 fps | 97.4% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 17,767 psi | 45% | 1237 fps | 99.8% |
| ReloadSwiss RS 24*² | <<locked>> | 76% | 27,311 psi | 68% | 1496 fps | 87% |
| Rottweil P 801² | <<locked>> | 60% | 29,660 psi | 74% | 1342 fps | 100% |
| Rottweil P 806*² | 16.4 gr | 60% | 12,604 psi | 32% | 1155 fps | 85.1% |
| SNPE Vectan A0² | <<locked>> | 60% | 18,333 psi | 46% | 1198 fps | 98.9% |
| SNPE Vectan A1² | <<locked>> | 60% | 23,105 psi | 58% | 1266 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 22,249 psi | 56% | 1263 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 27,195 psi | 68% | 1214 fps | 100% |
| SNPE Vectan BA7 1/2*² | 12 gr | 60% | 15,461 psi | 39% | 1145 fps | 90.1% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 21,770 psi | 55% | 1263 fps | 100% |
| SNPE Vectan SP 2*² | <<locked>> | 60% | 19,870 psi | 50% | 1345 fps | 89.8% |
| Somchem MP200² | <<locked>> | 60% | 22,626 psi | 57% | 1325 fps | 99.6% |
| Somchem MS200² | <<locked>> | 60% | 20,537 psi | 51% | 1260 fps | 99.9% |
| Somchem S221*² | <<locked>> | 60% | 24,308 psi | 61% | 1411 fps | 88.5% |
| Vihtavuori 3N37*² | <<locked>> | 60% | 17,579 psi | 44% | 1234 fps | 93.5% |
| Vihtavuori 3N38* | <<locked>> | 84% | 23,714 psi | 59% | 1411 fps | 85.4% |
| Vihtavuori N105* | <<locked>> | 84% | 19,479 psi | 49% | 1365 fps | 85.6% |
| Vihtavuori N320² | <<locked>> | 60% | 23,873 psi | 60% | 1260 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 12,154 psi | 30% | 945 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 22,742 psi | 57% | 1299 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 19,943 psi | 50% | 1253 fps | 99.6% |
| Vihtavuori N350*² | 11.8 gr | 60% | 15,360 psi | 39% | 1171 fps | 91.8% |
| Winchester 231² | <<locked>> | 60% | 30,414 psi | 76% | 1394 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 19,203 psi | 48% | 1217 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
* 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 13 powders for .45 Win. Mag. loaded with the .451 | 185gr | Speer TMJ-M. Rottweil P 806 delivers the highest muzzle velocity at 1,654 fps; across all powders the maximum-charge window runs from 1,053 fps to 1,654 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 13 of the 13 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (275 MPa), the top charges use 36–89 %, leaving at least 11 % 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. Rottweil P 806, Vihtavuori N350, SNPE Vectan BA7 1/2 rank at the top here: for .45 Win. Mag. with the .451 | 185gr | Speer TMJ-M they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Vihtavuori N105 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.