Load Specifications
Load data in caliber .454 Casull Mag. with .452 | 255gr | Rim Rock SWC Top Shelf bullet and 79 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant BLUE DOT, Vihtavuori 3N38 and Vihtavuori N105.
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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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 7.5"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 4100*ᴾ | <<locked>> | 100% | 50,763 psi | 90% | 1732 fps | 92.7% |
| Accurate No. 2² | <<locked>> | 76% | 45,745 psi | 81% | 1460 fps | 100% |
| Accurate No. 5² | <<locked>> | 64% | 49,879 psi | 88% | 1624 fps | 100% |
| Accurate No. 7² | <<locked>> | 76% | 47,427 psi | 84% | 1690 fps | 99.5% |
| Accurate No. 9 | <<locked>> | 84% | 46,876 psi | 83% | 1683 fps | 96.6% |
| Accurate Solo 1000 | <<locked>> | 84% | 49,487 psi | 87% | 1391 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 88% | 51,169 psi | 90% | 1457 fps | 100% |
| Accurate TCM | <<locked>> | 84% | 46,296 psi | 82% | 1667 fps | 97.3% |
| ADI AP 100ᴾ | <<locked>> | 100% | 48,240 psi | 85% | 1611 fps | 100% |
| ADI AP 70N² | <<locked>> | 72% | 49,182 psi | 87% | 1460 fps | 100% |
| ADI APS 350 | <<locked>> | 84% | 48,631 psi | 86% | 1283 fps | 100% |
| ADI APS 450 | <<locked>> | 84% | 47,761 psi | 84% | 1309 fps | 100% |
| ADI AS 30 | <<locked>> | 84% | 47,601 psi | 84% | 1342 fps | 100% |
| ADI AS 50N | <<locked>> | 80% | 49,037 psi | 87% | 1401 fps | 100% |
| Alliant 2400* | <<locked>> | 96% | 48,254 psi | 85% | 1729 fps | 94.9% |
| Alliant BE-86 | <<locked>> | 84% | 49,182 psi | 87% | 1427 fps | 100% |
| Alliant BLUE DOTᴾ | <<locked>> | 100% | 48,298 psi | 85% | 1693 fps | 99.2% |
| Alliant BULLSEYE² | <<locked>> | 76% | 48,791 psi | 86% | 1526 fps | 100% |
| Alliant Green Dot | <<locked>> | 84% | 48,892 psi | 86% | 1404 fps | 100% |
| Alliant Hercoᴾ | <<locked>> | 100% | 48,399 psi | 86% | 1519 fps | 100% |
| Alliant POWER PISTOL | <<locked>> | 84% | 50,401 psi | 89% | 1693 fps | 100% |
| Alliant Power Pro 300-MP*ᴾ | <<locked>> | 100% | 44,179 psi | 78% | 1706 fps | 88.3% |
| Alliant RED DOT | <<locked>> | 88% | 50,038 psi | 88% | 1388 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 72% | 50,749 psi | 90% | 1549 fps | 100% |
| Alliant UNIQUE | <<locked>> | 84% | 47,587 psi | 84% | 1519 fps | 100% |
| Baschieri & Pellagri 100 | <<locked>> | 84% | 50,473 psi | 89% | 1394 fps | 100% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 47,587 psi | 84% | 1378 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 76% | 47,877 psi | 85% | 1391 fps | 100% |
| Hodgdon CFE Pistol | <<locked>> | 80% | 47,413 psi | 84% | 1437 fps | 100% |
| Hodgdon Clays | <<locked>> | 96% | 49,284 psi | 87% | 1319 fps | 100% |
| Hodgdon H110*ᴾ | <<locked>> | 100% | 45,919 psi | 81% | 1729 fps | 88.1% |
| Hodgdon HS-6² | <<locked>> | 68% | 47,514 psi | 84% | 1565 fps | 100% |
| Hodgdon LilGun*ᴾ | <<locked>> | 100% | 37,768 psi | 67% | 1677 fps | 92.5% |
| Hodgdon Longshot² | <<locked>> | 64% | 46,282 psi | 82% | 1542 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 20,073 psi | 35% | 1001 fps | 100% |
| Hodgdon Universal | <<locked>> | 80% | 49,182 psi | 87% | 1460 fps | 100% |
| Lovex D036² | <<locked>> | 64% | 49,806 psi | 88% | 1624 fps | 100% |
| Lovex D037.1² | <<locked>> | 76% | 47,427 psi | 84% | 1690 fps | 99.5% |
| Lovex D037.2 | <<locked>> | 84% | 47,964 psi | 85% | 1693 fps | 96.8% |
| Lovex S011² | <<locked>> | 72% | 50,082 psi | 89% | 1424 fps | 100% |
| Lovex S020² | <<locked>> | 76% | 48,008 psi | 85% | 1463 fps | 100% |
| Maxam CSB 1 | <<locked>> | 88% | 47,239 psi | 84% | 1417 fps | 100% |
| Maxam CSB 2 | <<locked>> | 84% | 48,385 psi | 86% | 1424 fps | 100% |
| Maxam CSB 3 | <<locked>> | 84% | 47,253 psi | 84% | 1398 fps | 100% |
| Maxam CSB 4 | <<locked>> | 84% | 50,111 psi | 89% | 1404 fps | 100% |
| Maxam CSB 5 | <<locked>> | 80% | 49,472 psi | 87% | 1348 fps | 100% |
| Ramshot Enforcer | <<locked>> | 96% | 48,936 psi | 87% | 1742 fps | 96% |
| Ramshot Silhouette² | <<locked>> | 68% | 46,021 psi | 81% | 1503 fps | 100% |
| Ramshot True Blue² | <<locked>> | 64% | 47,674 psi | 84% | 1549 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 72% | 46,702 psi | 83% | 1394 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 18,739 psi | 33% | 1014 fps | 100% |
| ReloadSwiss RS 20 | <<locked>> | 84% | 46,963 psi | 83% | 1490 fps | 100% |
| ReloadSwiss RS 24 | <<locked>> | 84% | 48,124 psi | 85% | 1680 fps | 100% |
| Rottweil P 801² | <<locked>> | 72% | 51,053 psi | 90% | 1404 fps | 100% |
| Rottweil P 806 | <<locked>> | 88% | 50,401 psi | 89% | 1667 fps | 100% |
| Shooters World Auto Pistol² | <<locked>> | 64% | 49,806 psi | 88% | 1624 fps | 100% |
| Shooters World Heavy Pistol | <<locked>> | 84% | 47,964 psi | 85% | 1693 fps | 96.8% |
| Shooters World Major Pistol² | <<locked>> | 76% | 47,427 psi | 84% | 1690 fps | 99.5% |
| SNPE Vectan A0 | <<locked>> | 88% | 48,037 psi | 85% | 1470 fps | 100% |
| SNPE Vectan A1 | <<locked>> | 80% | 48,225 psi | 85% | 1417 fps | 100% |
| SNPE Vectan BA 9 | <<locked>> | 80% | 47,543 psi | 84% | 1434 fps | 100% |
| SNPE Vectan BA10 | <<locked>> | 80% | 48,936 psi | 87% | 1319 fps | 100% |
| SNPE Vectan BA7 1/2 | <<locked>> | 92% | 48,211 psi | 85% | 1549 fps | 100% |
| SNPE Vectan BA9 1/2 | <<locked>> | 84% | 50,720 psi | 90% | 1467 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 76% | 47,282 psi | 84% | 1647 fps | 100% |
| Somchem MP200 | <<locked>> | 80% | 50,691 psi | 90% | 1539 fps | 100% |
| Somchem MS200 | <<locked>> | 84% | 48,878 psi | 86% | 1493 fps | 100% |
| Somchem S221² | <<locked>> | 72% | 49,516 psi | 88% | 1654 fps | 100% |
| Vihtavuori 3N37 | <<locked>> | 84% | 48,950 psi | 87% | 1572 fps | 100% |
| Vihtavuori 3N38 | <<locked>> | 96% | 46,485 psi | 82% | 1637 fps | 100% |
| Vihtavuori N105ᴾ | <<locked>> | 100% | 48,399 psi | 86% | 1690 fps | 100% |
| Vihtavuori N310² | <<locked>> | 68% | 50,676 psi | 90% | 1322 fps | 100% |
| Vihtavuori N320 | <<locked>> | 80% | 51,140 psi | 90% | 1407 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 36,129 psi | 64% | 1188 fps | 100% |
| Vihtavuori N330² | <<locked>> | 76% | 47,195 psi | 83% | 1430 fps | 100% |
| Vihtavuori N340 | <<locked>> | 84% | 50,212 psi | 89% | 1503 fps | 100% |
| Vihtavuori N350 | <<locked>> | 88% | 46,905 psi | 83% | 1542 fps | 100% |
| Winchester 231² | <<locked>> | 68% | 48,008 psi | 85% | 1424 fps | 100% |
| Winchester AutoComp | <<locked>> | 88% | 50,343 psi | 89% | 1470 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 7.5"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 4100* | <<locked>> | 88% | 33,982 psi | 60% | 1522 fps | 86.5% |
| Accurate No. 2² | <<locked>> | 60% | 28,036 psi | 50% | 1257 fps | 100% |
| Accurate No. 5² | <<locked>> | 60% | 43,091 psi | 76% | 1552 fps | 100% |
| Accurate No. 7*² | <<locked>> | 60% | 26,440 psi | 47% | 1385 fps | 93.8% |
| Accurate No. 9*² | <<locked>> | 64% | 23,032 psi | 41% | 1309 fps | 85.8% |
| Accurate Solo 1000² | <<locked>> | 60% | 28,427 psi | 50% | 1158 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 24,889 psi | 44% | 1161 fps | 100% |
| Accurate TCM*² | <<locked>> | 64% | 23,453 psi | 41% | 1312 fps | 87.6% |
| ADI AP 100*² | <<locked>> | 60% | 16,882 psi | 30% | 1112 fps | 94.9% |
| ADI AP 70N² | <<locked>> | 60% | 35,375 psi | 63% | 1316 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 29,457 psi | 52% | 1073 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 28,413 psi | 50% | 1093 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 28,094 psi | 50% | 1122 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 30,429 psi | 54% | 1198 fps | 100% |
| Alliant 2400* | <<locked>> | 80% | 29,646 psi | 52% | 1460 fps | 87.4% |
| Alliant BE-86² | <<locked>> | 60% | 25,744 psi | 46% | 1165 fps | 100% |
| Alliant BLUE DOT*² | 15.8 gr | 64% | 17,985 psi | 32% | 1178 fps | 85.7% |
| Alliant BULLSEYE² | <<locked>> | 60% | 31,749 psi | 56% | 1329 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 27,818 psi | 49% | 1165 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 18,710 psi | 33% | 1112 fps | 100% |
| Alliant POWER PISTOL² | <<locked>> | 60% | 24,961 psi | 44% | 1332 fps | 98.6% |
| Alliant Power Pro 300-MP* | <<locked>> | 96% | 38,740 psi | 68% | 1634 fps | 86.1% |
| Alliant RED DOT² | <<locked>> | 60% | 26,919 psi | 48% | 1122 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 60% | 36,085 psi | 64% | 1391 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 25,556 psi | 45% | 1240 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 27,267 psi | 48% | 1148 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 18,246 psi | 32% | 1020 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 30,211 psi | 53% | 1211 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 27,847 psi | 49% | 1217 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 23,873 psi | 42% | 1024 fps | 100% |
| Hodgdon H110* | <<locked>> | 96% | 40,393 psi | 71% | 1657 fps | 85.9% |
| Hodgdon HS-6² | <<locked>> | 60% | 36,245 psi | 64% | 1440 fps | 100% |
| Hodgdon LilGun* | <<locked>> | 92% | 28,558 psi | 50% | 1522 fps | 87.5% |
| Hodgdon Longshot² | <<locked>> | 60% | 39,943 psi | 71% | 1473 fps | 100% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 9,224 psi | 16% | 755 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 29,892 psi | 53% | 1243 fps | 100% |
| Lovex D036² | <<locked>> | 60% | 43,033 psi | 76% | 1555 fps | 100% |
| Lovex D037.1*² | <<locked>> | 60% | 26,440 psi | 47% | 1385 fps | 93.8% |
| Lovex D037.2*² | <<locked>> | 64% | 23,583 psi | 42% | 1322 fps | 86.2% |
| Lovex S011² | <<locked>> | 60% | 35,708 psi | 63% | 1280 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 29,776 psi | 53% | 1266 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 23,815 psi | 42% | 1142 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 25,991 psi | 46% | 1171 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 26,760 psi | 47% | 1161 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 28,471 psi | 50% | 1165 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 31,183 psi | 55% | 1152 fps | 100% |
| Ramshot Enforcer*² | <<locked>> | 76% | 24,743 psi | 44% | 1381 fps | 85.5% |
| Ramshot Silhouette² | <<locked>> | 60% | 35,882 psi | 63% | 1391 fps | 100% |
| Ramshot True Blue² | <<locked>> | 60% | 41,234 psi | 73% | 1483 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 33,968 psi | 60% | 1260 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 8,688 psi | 15% | 761 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 24,366 psi | 43% | 1217 fps | 100% |
| ReloadSwiss RS 24*² | <<locked>> | 60% | 22,655 psi | 40% | 1289 fps | 93.5% |
| Rottweil P 801² | <<locked>> | 60% | 36,999 psi | 65% | 1266 fps | 100% |
| Rottweil P 806² | <<locked>> | 60% | 19,566 psi | 35% | 1247 fps | 99.6% |
| Shooters World Auto Pistol² | <<locked>> | 60% | 43,033 psi | 76% | 1555 fps | 100% |
| Shooters World Heavy Pistol*² | <<locked>> | 64% | 23,583 psi | 42% | 1322 fps | 86.2% |
| Shooters World Major Pistol*² | <<locked>> | 60% | 26,440 psi | 47% | 1385 fps | 93.8% |
| SNPE Vectan A0² | <<locked>> | 60% | 23,453 psi | 41% | 1168 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 60% | 28,761 psi | 51% | 1204 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 27,992 psi | 49% | 1214 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 31,618 psi | 56% | 1132 fps | 100% |
| SNPE Vectan BA7 1/2² | <<locked>> | 60% | 20,407 psi | 36% | 1168 fps | 99.8% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 27,557 psi | 49% | 1207 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 60% | 28,239 psi | 50% | 1398 fps | 99.9% |
| Somchem MP200² | <<locked>> | 60% | 29,399 psi | 52% | 1296 fps | 100% |
| Somchem MS200² | <<locked>> | 60% | 26,484 psi | 47% | 1227 fps | 100% |
| Somchem S221² | <<locked>> | 60% | 32,837 psi | 58% | 1450 fps | 99.4% |
| Vihtavuori 3N37² | <<locked>> | 60% | 24,018 psi | 42% | 1257 fps | 100% |
| Vihtavuori 3N38*² | 14.4 gr | 60% | 16,201 psi | 29% | 1125 fps | 88.9% |
| Vihtavuori N105*² | 14.2 gr | 60% | 13,402 psi | 24% | 1093 fps | 89.9% |
| Vihtavuori N310² | <<locked>> | 60% | 41,205 psi | 73% | 1234 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 30,124 psi | 53% | 1191 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 15,664 psi | 28% | 899 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 29,747 psi | 53% | 1243 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 25,788 psi | 46% | 1220 fps | 100% |
| Vihtavuori N350² | <<locked>> | 60% | 20,813 psi | 37% | 1191 fps | 100% |
| Winchester 231² | <<locked>> | 60% | 37,855 psi | 67% | 1322 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 24,685 psi | 44% | 1178 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 44 powders for .454 Casull Mag. loaded with the .452 | 255gr | Rim Rock SWC Top Shelf. Ramshot Enforcer delivers the highest muzzle velocity at 1,742 fps; across all powders the maximum-charge window runs from 1,001 fps to 1,742 fps. Accurate 4100 gives the best case fill at 100 %, and 44 of the 44 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 33–90 %, leaving at least 10 % headroom. Accurate 4100, ADI AP 100, Alliant BLUE DOT 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. Alliant BLUE DOT, Vihtavuori 3N38, Vihtavuori N105 rank at the top here: for .454 Casull Mag. with the .452 | 255gr | Rim Rock SWC Top Shelf they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 4100, Alliant 2400, Hodgdon LilGun 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.