Load Specifications
Load data in caliber .460 S&W Mag. with .452 | 260gr | Rim Rock TC Cowboy bullet and 80 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon LilGun, Accurate 4100 and Alliant BLUE DOT.
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: 8.38"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 4100 | <<locked>> | 88% | 52,910 psi | 85% | 1932 fps | 98% |
| Accurate No. 11 FS* | <<locked>> | 96% | 51,605 psi | 83% | 1929 fps | 92.9% |
| Accurate No. 2² | <<locked>> | 72% | 51,590 psi | 83% | 1647 fps | 100% |
| Accurate No. 7² | <<locked>> | 68% | 51,663 psi | 83% | 1877 fps | 100% |
| Accurate No. 9² | <<locked>> | 76% | 51,938 psi | 84% | 1900 fps | 99.9% |
| Accurate Solo 1000 | <<locked>> | 80% | 53,026 psi | 86% | 1562 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 80% | 52,446 psi | 85% | 1601 fps | 100% |
| Accurate TCM² | <<locked>> | 76% | 51,445 psi | 83% | 1883 fps | 100% |
| ADI AP 100 | <<locked>> | 92% | 53,026 psi | 86% | 1795 fps | 100% |
| ADI AP 70N² | <<locked>> | 68% | 54,404 psi | 88% | 1640 fps | 100% |
| ADI APS 350 | <<locked>> | 84% | 53,200 psi | 86% | 1473 fps | 100% |
| ADI APS 450 | <<locked>> | 84% | 52,605 psi | 85% | 1496 fps | 100% |
| ADI AS 30 | <<locked>> | 84% | 54,563 psi | 88% | 1549 fps | 100% |
| ADI AS 50N² | <<locked>> | 76% | 52,721 psi | 85% | 1572 fps | 100% |
| Alliant 2400 | <<locked>> | 84% | 49,806 psi | 80% | 1909 fps | 99% |
| Alliant BE-86 | <<locked>> | 80% | 54,244 psi | 88% | 1598 fps | 100% |
| Alliant BLUE DOT | <<locked>> | 92% | 55,259 psi | 89% | 1923 fps | 100% |
| Alliant BULLSEYE² | <<locked>> | 72% | 54,534 psi | 88% | 1716 fps | 100% |
| Alliant Green Dot | <<locked>> | 80% | 52,808 psi | 85% | 1575 fps | 100% |
| Alliant Herco | <<locked>> | 92% | 51,605 psi | 83% | 1673 fps | 100% |
| Alliant POWER PISTOL² | <<locked>> | 76% | 54,302 psi | 88% | 1867 fps | 100% |
| Alliant Power Pro 300-MP | <<locked>> | 92% | 55,738 psi | 90% | 2011 fps | 97.1% |
| Alliant RED DOT | <<locked>> | 84% | 53,214 psi | 86% | 1555 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 64% | 50,401 psi | 81% | 1677 fps | 100% |
| Alliant UNIQUE | <<locked>> | 80% | 54,418 psi | 88% | 1709 fps | 100% |
| Baschieri & Pellagri 100 | <<locked>> | 80% | 55,071 psi | 89% | 1568 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 96% | 52,997 psi | 86% | 1549 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 72% | 52,301 psi | 84% | 1552 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 76% | 52,794 psi | 85% | 1614 fps | 100% |
| Hodgdon Clays | <<locked>> | 96% | 54,708 psi | 88% | 1512 fps | 100% |
| Hodgdon H110 | <<locked>> | 88% | 50,038 psi | 81% | 1949 fps | 95.3% |
| Hodgdon HS-6² | <<locked>> | 64% | 54,737 psi | 88% | 1765 fps | 100% |
| Hodgdon LilGun | <<locked>> | 92% | 50,749 psi | 82% | 1985 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 24,787 psi | 40% | 1161 fps | 100% |
| Hodgdon Universal² | <<locked>> | 76% | 54,810 psi | 89% | 1644 fps | 100% |
| Lovex D037.1² | <<locked>> | 68% | 51,663 psi | 83% | 1877 fps | 100% |
| Lovex D037.2² | <<locked>> | 76% | 53,403 psi | 86% | 1916 fps | 99.9% |
| Lovex S011² | <<locked>> | 68% | 53,708 psi | 87% | 1591 fps | 100% |
| Lovex S020² | <<locked>> | 72% | 54,099 psi | 87% | 1647 fps | 100% |
| Maxam CSB 1 | <<locked>> | 84% | 52,910 psi | 85% | 1601 fps | 100% |
| Maxam CSB 2 | <<locked>> | 80% | 54,404 psi | 88% | 1604 fps | 100% |
| Maxam CSB 3 | <<locked>> | 80% | 52,156 psi | 84% | 1572 fps | 100% |
| Maxam CSB 4 | <<locked>> | 80% | 53,998 psi | 87% | 1575 fps | 100% |
| Maxam CSB 5² | <<locked>> | 76% | 51,895 psi | 84% | 1506 fps | 100% |
| Ramshot Enforcer | <<locked>> | 84% | 50,908 psi | 82% | 1919 fps | 99.5% |
| Ramshot Silhouette² | <<locked>> | 64% | 51,837 psi | 84% | 1686 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 68% | 51,285 psi | 83% | 1562 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 23,685 psi | 38% | 1181 fps | 100% |
| ReloadSwiss RS 20 | <<locked>> | 80% | 55,042 psi | 89% | 1686 fps | 100% |
| ReloadSwiss RS 24² | <<locked>> | 76% | 52,692 psi | 85% | 1870 fps | 100% |
| ReloadSwiss RS 30*ᴾ | <<locked>> | 100% | 37,753 psi | 61% | 1798 fps | 94.6% |
| Rottweil P 801² | <<locked>> | 68% | 54,563 psi | 88% | 1565 fps | 100% |
| Rottweil P 806² | <<locked>> | 76% | 50,966 psi | 82% | 1781 fps | 100% |
| Shooters World Heavy Pistol² | <<locked>> | 76% | 53,403 psi | 86% | 1916 fps | 99.9% |
| Shooters World Major Pistol² | <<locked>> | 68% | 51,663 psi | 83% | 1877 fps | 100% |
| SNPE Vectan A0 | <<locked>> | 84% | 54,520 psi | 88% | 1660 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 76% | 52,446 psi | 85% | 1588 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 76% | 52,431 psi | 85% | 1608 fps | 100% |
| SNPE Vectan BA10 | <<locked>> | 80% | 54,592 psi | 88% | 1516 fps | 100% |
| SNPE Vectan BA6 1/2ᴾ | <<locked>> | 100% | 35,824 psi | 58% | 1696 fps | 98.3% |
| SNPE Vectan BA7 1/2 | <<locked>> | 84% | 51,779 psi | 84% | 1713 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 76% | 51,706 psi | 83% | 1608 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 68% | 51,517 psi | 83% | 1814 fps | 100% |
| Somchem MP200² | <<locked>> | 72% | 52,214 psi | 84% | 1683 fps | 100% |
| Somchem MS200 | <<locked>> | 80% | 54,998 psi | 89% | 1680 fps | 100% |
| Somchem S221² | <<locked>> | 64% | 51,372 psi | 83% | 1811 fps | 100% |
| Somchem S265*ᴾ | <<locked>> | 100% | 48,327 psi | 78% | 1850 fps | 93.7% |
| Vihtavuori 3N37² | <<locked>> | 76% | 52,025 psi | 84% | 1729 fps | 100% |
| Vihtavuori 3N38 | <<locked>> | 88% | 52,881 psi | 85% | 1847 fps | 100% |
| Vihtavuori N105 | <<locked>> | 88% | 51,706 psi | 83% | 1844 fps | 100% |
| Vihtavuori N110ᴾ | <<locked>> | 100% | 46,441 psi | 75% | 1877 fps | 98.9% |
| Vihtavuori N310² | <<locked>> | 64% | 52,185 psi | 84% | 1476 fps | 100% |
| Vihtavuori N320² | <<locked>> | 76% | 55,564 psi | 90% | 1581 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 43,047 psi | 70% | 1375 fps | 100% |
| Vihtavuori N330² | <<locked>> | 72% | 53,055 psi | 86% | 1611 fps | 100% |
| Vihtavuori N340² | <<locked>> | 76% | 52,141 psi | 84% | 1647 fps | 100% |
| Vihtavuori N350 | <<locked>> | 84% | 55,738 psi | 90% | 1752 fps | 100% |
| Winchester 231² | <<locked>> | 64% | 51,938 psi | 84% | 1591 fps | 100% |
| Winchester 296* | <<locked>> | 92% | 52,460 psi | 85% | 2005 fps | 93.6% |
| Winchester AutoComp | <<locked>> | 80% | 52,025 psi | 84% | 1614 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 8.38"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 4100*² | 30.5 gr | 64% | 22,887 psi | 37% | 1437 fps | 85.4% |
| Accurate No. 11 FS* | <<locked>> | 84% | 34,301 psi | 55% | 1680 fps | 86% |
| Accurate No. 2² | <<locked>> | 60% | 36,129 psi | 58% | 1476 fps | 100% |
| Accurate No. 7² | <<locked>> | 60% | 38,464 psi | 62% | 1713 fps | 100% |
| Accurate No. 9² | <<locked>> | 60% | 29,341 psi | 47% | 1565 fps | 95.2% |
| Accurate Solo 1000² | <<locked>> | 60% | 33,779 psi | 55% | 1335 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 31,691 psi | 51% | 1362 fps | 100% |
| Accurate TCM² | <<locked>> | 60% | 29,414 psi | 47% | 1558 fps | 96.2% |
| ADI AP 100² | <<locked>> | 60% | 22,756 psi | 37% | 1358 fps | 100% |
| ADI AP 70N² | <<locked>> | 60% | 43,700 psi | 71% | 1526 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 33,011 psi | 53% | 1234 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 32,227 psi | 52% | 1253 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 32,822 psi | 53% | 1293 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 36,230 psi | 59% | 1381 fps | 100% |
| Alliant 2400*² | <<locked>> | 60% | 22,756 psi | 37% | 1434 fps | 88.3% |
| Alliant BE-86² | <<locked>> | 60% | 32,634 psi | 53% | 1358 fps | 100% |
| Alliant BLUE DOT*² | 22.6 gr | 60% | 22,176 psi | 36% | 1394 fps | 94.5% |
| Alliant BULLSEYE² | <<locked>> | 60% | 40,016 psi | 65% | 1552 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 33,750 psi | 54% | 1352 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 24,250 psi | 39% | 1309 fps | 100% |
| Alliant POWER PISTOL² | <<locked>> | 60% | 33,808 psi | 55% | 1601 fps | 100% |
| Alliant Power Pro 300-MP*² | <<locked>> | 72% | 27,659 psi | 45% | 1578 fps | 86.2% |
| Alliant RED DOT² | <<locked>> | 60% | 32,111 psi | 52% | 1299 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 60% | 45,237 psi | 73% | 1617 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 32,996 psi | 53% | 1457 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 33,750 psi | 54% | 1335 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 23,076 psi | 37% | 1184 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 37,449 psi | 60% | 1398 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 34,925 psi | 56% | 1414 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 27,441 psi | 44% | 1178 fps | 100% |
| Hodgdon H110*² | <<locked>> | 72% | 28,587 psi | 46% | 1598 fps | 85.9% |
| Hodgdon HS-6² | <<locked>> | 60% | 48,037 psi | 78% | 1699 fps | 100% |
| Hodgdon LilGun*² | 32.6 gr | 68% | 20,566 psi | 33% | 1453 fps | 87% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 11,516 psi | 19% | 879 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 36,941 psi | 60% | 1444 fps | 100% |
| Lovex D037.1² | <<locked>> | 60% | 38,464 psi | 62% | 1713 fps | 100% |
| Lovex D037.2² | <<locked>> | 60% | 30,008 psi | 48% | 1578 fps | 95.5% |
| Lovex S011² | <<locked>> | 60% | 43,250 psi | 70% | 1483 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 38,450 psi | 62% | 1483 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 29,631 psi | 48% | 1325 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 33,446 psi | 54% | 1368 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 32,692 psi | 53% | 1345 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 34,243 psi | 55% | 1348 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 36,390 psi | 59% | 1329 fps | 100% |
| Ramshot Enforcer*² | <<locked>> | 60% | 21,857 psi | 35% | 1424 fps | 88.9% |
| Ramshot Silhouette² | <<locked>> | 60% | 45,876 psi | 74% | 1624 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 41,959 psi | 68% | 1460 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 11,066 psi | 18% | 892 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 32,213 psi | 52% | 1427 fps | 100% |
| ReloadSwiss RS 24² | <<locked>> | 60% | 31,459 psi | 51% | 1581 fps | 99.8% |
| ReloadSwiss RS 30* | <<locked>> | 84% | 23,728 psi | 38% | 1503 fps | 85.1% |
| Rottweil P 801² | <<locked>> | 60% | 44,498 psi | 72% | 1463 fps | 100% |
| Rottweil P 806² | <<locked>> | 60% | 29,834 psi | 48% | 1516 fps | 100% |
| Shooters World Heavy Pistol² | <<locked>> | 60% | 30,008 psi | 48% | 1578 fps | 95.5% |
| Shooters World Major Pistol² | <<locked>> | 60% | 38,464 psi | 62% | 1713 fps | 100% |
| SNPE Vectan A0² | <<locked>> | 60% | 30,066 psi | 49% | 1375 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 60% | 35,056 psi | 57% | 1391 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 34,664 psi | 56% | 1407 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 35,476 psi | 57% | 1299 fps | 100% |
| SNPE Vectan BA6 1/2*² | <<locked>> | 72% | 16,099 psi | 26% | 1260 fps | 85.2% |
| SNPE Vectan BA7 1/2² | <<locked>> | 60% | 26,876 psi | 43% | 1391 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 34,461 psi | 56% | 1407 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 60% | 39,842 psi | 64% | 1677 fps | 100% |
| Somchem MP200² | <<locked>> | 60% | 37,376 psi | 60% | 1512 fps | 100% |
| Somchem MS200² | <<locked>> | 60% | 33,228 psi | 54% | 1427 fps | 100% |
| Somchem S221² | <<locked>> | 60% | 44,860 psi | 72% | 1739 fps | 100% |
| Somchem S265* | <<locked>> | 84% | 30,545 psi | 49% | 1572 fps | 86.2% |
| Vihtavuori 3N37² | <<locked>> | 60% | 32,401 psi | 52% | 1493 fps | 100% |
| Vihtavuori 3N38² | <<locked>> | 60% | 23,105 psi | 37% | 1401 fps | 98.2% |
| Vihtavuori N105² | <<locked>> | 60% | 20,958 psi | 34% | 1385 fps | 99.5% |
| Vihtavuori N110*² | <<locked>> | 72% | 19,232 psi | 31% | 1371 fps | 85.8% |
| Vihtavuori N310² | <<locked>> | 60% | 47,384 psi | 77% | 1427 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 37,347 psi | 60% | 1388 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 19,479 psi | 31% | 1047 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 38,232 psi | 62% | 1450 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 33,489 psi | 54% | 1434 fps | 100% |
| Vihtavuori N350² | <<locked>> | 60% | 28,369 psi | 46% | 1424 fps | 100% |
| Winchester 231² | <<locked>> | 60% | 46,441 psi | 75% | 1532 fps | 100% |
| Winchester 296* | <<locked>> | 80% | 34,490 psi | 56% | 1732 fps | 86.5% |
| Winchester AutoComp ² | <<locked>> | 60% | 31,198 psi | 50% | 1368 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 80 powders for .460 S&W Mag. loaded with the .452 | 260gr | Rim Rock TC Cowboy. Alliant Power Pro 300-MP delivers the highest muzzle velocity at 2,011 fps; across all powders the maximum-charge window runs from 1,161 fps to 2,011 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 43 of the 80 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (427 MPa), the top charges use 38–90 %, leaving at least 10 % headroom. Hodgdon TrailBoss, ReloadSwiss RS 14, ReloadSwiss RS 30 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. Hodgdon LilGun, Accurate 4100, Alliant BLUE DOT rank at the top here: for .460 S&W Mag. with the .452 | 260gr | Rim Rock TC Cowboy they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate No. 11 FS, ReloadSwiss RS 30, Somchem S265 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.