Load Specifications
Load data in caliber .45 Win. Mag. with .452 | 300gr | Rim Rock SWC bullet and 67 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 N105 and ADI AP 100.
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% | 32,982 psi | 83% | 1040 fps | 100% |
| Accurate No. 7*² | <<locked>> | 76% | 34,389 psi | 86% | 1194 fps | 93.4% |
| Accurate Solo 1000² | <<locked>> | 76% | 35,839 psi | 90% | 984 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 80% | 34,650 psi | 87% | 1024 fps | 100% |
| Accurate TCM* | <<locked>> | 84% | 33,504 psi | 84% | 1171 fps | 88.6% |
| ADI AP 100 | <<locked>> | 96% | 34,142 psi | 86% | 1138 fps | 99.3% |
| ADI AP 70N² | <<locked>> | 64% | 32,474 psi | 81% | 1017 fps | 100% |
| ADI APS 350² | <<locked>> | 72% | 34,664 psi | 87% | 886 fps | 100% |
| ADI APS 450² | <<locked>> | 76% | 35,897 psi | 90% | 925 fps | 100% |
| ADI AS 30² | <<locked>> | 76% | 35,375 psi | 89% | 955 fps | 100% |
| ADI AS 50N² | <<locked>> | 72% | 35,027 psi | 88% | 991 fps | 100% |
| Alliant BE-86² | <<locked>> | 76% | 32,866 psi | 82% | 1001 fps | 100% |
| Alliant BLUE DOT* | <<locked>> | 96% | 32,793 psi | 82% | 1165 fps | 91.6% |
| Alliant BULLSEYE² | <<locked>> | 68% | 32,547 psi | 82% | 1060 fps | 100% |
| Alliant Green Dot² | <<locked>> | 76% | 34,548 psi | 87% | 988 fps | 100% |
| Alliant Herco | <<locked>> | 96% | 35,665 psi | 89% | 1099 fps | 100% |
| Alliant POWER PISTOL | <<locked>> | 80% | 34,940 psi | 88% | 1188 fps | 99.2% |
| Alliant RED DOT² | <<locked>> | 76% | 33,591 psi | 84% | 955 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 64% | 33,025 psi | 83% | 1070 fps | 100% |
| Alliant UNIQUE | <<locked>> | 80% | 34,606 psi | 87% | 1093 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 76% | 35,027 psi | 88% | 981 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 96% | 35,737 psi | 90% | 1004 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 72% | 34,882 psi | 87% | 1007 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 76% | 34,824 psi | 87% | 1037 fps | 100% |
| Hodgdon Clays | <<locked>> | 84% | 35,114 psi | 88% | 919 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 64% | 32,996 psi | 83% | 1106 fps | 100% |
| Hodgdon Longshot² | <<locked>> | 64% | 35,911 psi | 90% | 1132 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 16,172 psi | 41% | 738 fps | 100% |
| Hodgdon Universal² | <<locked>> | 72% | 33,214 psi | 83% | 1024 fps | 100% |
| Lovex D037.1*² | <<locked>> | 76% | 34,389 psi | 86% | 1194 fps | 93.4% |
| Lovex D037.2* | <<locked>> | 84% | 34,214 psi | 86% | 1184 fps | 87.5% |
| Lovex S011² | <<locked>> | 64% | 33,547 psi | 84% | 988 fps | 100% |
| Lovex S020² | <<locked>> | 72% | 33,924 psi | 85% | 1047 fps | 100% |
| Maxam CSB 1 | <<locked>> | 84% | 35,534 psi | 89% | 1027 fps | 100% |
| Maxam CSB 2 | <<locked>> | 80% | 35,433 psi | 89% | 1030 fps | 100% |
| Maxam CSB 3² | <<locked>> | 76% | 33,272 psi | 83% | 988 fps | 100% |
| Maxam CSB 4² | <<locked>> | 76% | 35,201 psi | 88% | 988 fps | 100% |
| Maxam CSB 5² | <<locked>> | 72% | 35,462 psi | 89% | 948 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 64% | 32,735 psi | 82% | 1073 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 68% | 34,113 psi | 86% | 1004 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 15,142 psi | 38% | 751 fps | 100% |
| ReloadSwiss RS 20 | <<locked>> | 80% | 33,388 psi | 84% | 1073 fps | 100% |
| ReloadSwiss RS 24 | <<locked>> | 84% | 35,795 psi | 90% | 1198 fps | 95.9% |
| Rottweil P 801² | <<locked>> | 64% | 34,548 psi | 87% | 981 fps | 100% |
| Rottweil P 806 | <<locked>> | 88% | 34,983 psi | 88% | 1211 fps | 100% |
| Shooters World Heavy Pistol* | <<locked>> | 84% | 34,214 psi | 86% | 1184 fps | 87.5% |
| Shooters World Major Pistol*² | <<locked>> | 76% | 34,389 psi | 86% | 1194 fps | 93.4% |
| SNPE Vectan A0 | <<locked>> | 84% | 35,534 psi | 89% | 1060 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 72% | 33,011 psi | 83% | 997 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 76% | 35,505 psi | 89% | 1033 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 68% | 33,518 psi | 84% | 906 fps | 100% |
| SNPE Vectan BA7 1/2 | <<locked>> | 88% | 34,766 psi | 87% | 1109 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 76% | 35,027 psi | 88% | 1033 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 76% | 34,809 psi | 87% | 1191 fps | 99.8% |
| Somchem MP200² | <<locked>> | 72% | 33,330 psi | 84% | 1070 fps | 100% |
| Somchem MS200² | <<locked>> | 76% | 33,214 psi | 83% | 1047 fps | 100% |
| Somchem S221² | <<locked>> | 68% | 32,982 psi | 83% | 1142 fps | 97.3% |
| Vihtavuori 3N37 | <<locked>> | 80% | 33,649 psi | 84% | 1115 fps | 100% |
| Vihtavuori 3N38 | <<locked>> | 96% | 34,418 psi | 86% | 1171 fps | 96.1% |
| Vihtavuori N105ᴾ | <<locked>> | 100% | 32,677 psi | 82% | 1201 fps | 98.7% |
| Vihtavuori N320² | <<locked>> | 72% | 35,143 psi | 88% | 991 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 30,008 psi | 75% | 886 fps | 100% |
| Vihtavuori N330² | <<locked>> | 72% | 34,229 psi | 86% | 1033 fps | 100% |
| Vihtavuori N340² | <<locked>> | 76% | 32,474 psi | 81% | 1043 fps | 100% |
| Vihtavuori N350 | <<locked>> | 88% | 35,998 psi | 90% | 1132 fps | 100% |
| Winchester 231² | <<locked>> | 64% | 35,215 psi | 88% | 1020 fps | 100% |
| Winchester AutoComp | <<locked>> | 80% | 34,171 psi | 86% | 1037 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% | 22,916 psi | 57% | 925 fps | 100% |
| Accurate No. 7*² | <<locked>> | 64% | 22,133 psi | 55% | 1020 fps | 86.3% |
| Accurate Solo 1000² | <<locked>> | 60% | 24,149 psi | 61% | 863 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 20,001 psi | 50% | 856 fps | 100% |
| Accurate TCM* | <<locked>> | 80% | 29,544 psi | 74% | 1119 fps | 86.5% |
| ADI AP 100*² | 7.6 gr | 60% | 13,373 psi | 34% | 794 fps | 87% |
| ADI AP 70N² | <<locked>> | 60% | 29,037 psi | 73% | 981 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 25,875 psi | 65% | 801 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 24,801 psi | 62% | 817 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 24,178 psi | 61% | 840 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 25,599 psi | 64% | 892 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 21,031 psi | 53% | 869 fps | 100% |
| Alliant BLUE DOT* | <<locked>> | 84% | 23,873 psi | 60% | 1033 fps | 86.3% |
| Alliant BULLSEYE² | <<locked>> | 60% | 26,339 psi | 66% | 988 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 23,380 psi | 59% | 866 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 14,982 psi | 38% | 814 fps | 99.6% |
| Alliant POWER PISTOL*² | <<locked>> | 60% | 19,305 psi | 48% | 948 fps | 92.5% |
| Alliant RED DOT² | <<locked>> | 60% | 23,235 psi | 58% | 843 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 60% | 29,515 psi | 74% | 1030 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 20,552 psi | 52% | 915 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 22,423 psi | 56% | 850 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 14,359 psi | 36% | 751 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 24,308 psi | 61% | 899 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 22,481 psi | 56% | 902 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 20,581 psi | 52% | 761 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 60% | 28,326 psi | 71% | 1050 fps | 99.7% |
| Hodgdon Longshot² | <<locked>> | 60% | 31,415 psi | 79% | 1083 fps | 100% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 7,600 psi | 19% | 558 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 23,975 psi | 60% | 919 fps | 100% |
| Lovex D037.1*² | <<locked>> | 64% | 22,133 psi | 55% | 1020 fps | 86.3% |
| Lovex D037.2* | <<locked>> | 80% | 29,733 psi | 75% | 1125 fps | 85.1% |
| Lovex S011² | <<locked>> | 60% | 29,718 psi | 75% | 951 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 23,583 psi | 59% | 932 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 19,189 psi | 48% | 840 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 20,784 psi | 52% | 873 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 21,857 psi | 55% | 860 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 23,714 psi | 59% | 866 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 26,136 psi | 66% | 856 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 60% | 28,355 psi | 71% | 1024 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 26,963 psi | 68% | 932 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 7,223 psi | 18% | 561 fps | 99.9% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 18,405 psi | 46% | 889 fps | 100% |
| ReloadSwiss RS 24*² | <<locked>> | 64% | 19,566 psi | 49% | 955 fps | 86.6% |
| Rottweil P 801² | <<locked>> | 60% | 30,893 psi | 77% | 948 fps | 100% |
| Rottweil P 806*² | 10.9 gr | 60% | 13,198 psi | 33% | 869 fps | 93% |
| Shooters World Heavy Pistol* | <<locked>> | 80% | 29,733 psi | 75% | 1125 fps | 85.1% |
| Shooters World Major Pistol*² | <<locked>> | 64% | 22,133 psi | 55% | 1020 fps | 86.3% |
| SNPE Vectan A0² | <<locked>> | 60% | 19,000 psi | 48% | 856 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 60% | 23,830 psi | 60% | 896 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 22,960 psi | 58% | 899 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 27,557 psi | 69% | 846 fps | 100% |
| SNPE Vectan BA7 1/2² | <<locked>> | 60% | 16,027 psi | 40% | 837 fps | 95.5% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 22,698 psi | 57% | 899 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 60% | 20,784 psi | 52% | 994 fps | 95.7% |
| Somchem MP200² | <<locked>> | 60% | 23,612 psi | 59% | 955 fps | 100% |
| Somchem MS200² | <<locked>> | 60% | 21,567 psi | 54% | 906 fps | 100% |
| Somchem S221*² | <<locked>> | 60% | 25,179 psi | 63% | 1033 fps | 94% |
| Vihtavuori 3N37² | <<locked>> | 60% | 18,579 psi | 47% | 909 fps | 98.2% |
| Vihtavuori 3N38*² | <<locked>> | 72% | 17,390 psi | 44% | 912 fps | 85.6% |
| Vihtavuori N105*² | 10.3 gr | 72% | 14,214 psi | 36% | 883 fps | 86% |
| Vihtavuori N320² | <<locked>> | 60% | 24,497 psi | 61% | 883 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 12,662 psi | 32% | 666 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 23,670 psi | 59% | 922 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 20,697 psi | 52% | 899 fps | 100% |
| Vihtavuori N350² | <<locked>> | 60% | 16,143 psi | 40% | 860 fps | 97.1% |
| Winchester 231² | <<locked>> | 60% | 31,575 psi | 79% | 988 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 19,740 psi | 49% | 866 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 15 powders for .45 Win. Mag. loaded with the .452 | 300gr | Rim Rock SWC. Rottweil P 806 delivers the highest muzzle velocity at 1,211 fps; across all powders the maximum-charge window runs from 738 fps to 1,211 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 15 of the 15 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (275 MPa), the top charges use 38–90 %, 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. Rottweil P 806, Vihtavuori N105, ADI AP 100 rank at the top here: for .45 Win. Mag. with the .452 | 300gr | Rim Rock SWC they combine a high case fill with complete burn and sit in the upper velocity band. ADI AP 100, 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.