Load data for .460 S&W Mag. + .452 | 255gr | Rim Rock SWC Top Shelf

.460 S&W Mag. cartridge drawing
Rim Rock logo

Load Specifications

Bullet Manufacturer:Rim Rock
Bullet Weight:255 gr
Bullet Diameter:0.452"
Bullet Length:<<locked>>
Case Length (l3):1.79"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:60 Grains of Water
Primer Size:Large Pistol Magnum (LPM)
Barrel Length:8.38"
Max. allowed Pressure:61,931 psi

Load data in caliber .460 S&W Mag. with .452 | 255gr | Rim Rock SWC Top Shelf 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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Max Load - Barrel Length: 8.38"

PowderChargeFRMaxP%V(0)z
Accurate 4100<<locked>>88%53,316 psi86%1962 fps98%
Accurate No. 11 FS*<<locked>>96%51,953 psi84%1959 fps92.9%
Accurate No. 2²<<locked>>72%52,315 psi84%1680 fps100%
Accurate No. 7²<<locked>>68%51,982 psi84%1906 fps100%
Accurate No. 9²<<locked>>76%52,678 psi85%1932 fps99.9%
Accurate Solo 1000<<locked>>80%52,910 psi85%1585 fps100%
Accurate Solo 1250<<locked>>80%52,620 psi85%1627 fps100%
Accurate TCM²<<locked>>76%51,909 psi84%1913 fps100%
ADI AP 100<<locked>>92%53,330 psi86%1821 fps100%
ADI AP 70N²<<locked>>68%54,534 psi88%1667 fps100%
ADI APS 350<<locked>>84%53,229 psi86%1496 fps100%
ADI APS 450<<locked>>84%52,852 psi85%1522 fps100%
ADI AS 30<<locked>>84%54,911 psi89%1575 fps100%
ADI AS 50N²<<locked>>76%53,069 psi86%1598 fps100%
Alliant 2400<<locked>>84%50,212 psi81%1942 fps99%
Alliant BE-86<<locked>>80%54,462 psi88%1624 fps100%
Alliant BLUE DOT<<locked>>92%55,463 psi90%1949 fps100%
Alliant BULLSEYE²<<locked>>72%55,129 psi89%1749 fps100%
Alliant Green Dot<<locked>>80%53,084 psi86%1604 fps100%
Alliant Herco<<locked>>92%52,098 psi84%1706 fps100%
Alliant POWER PISTOL²<<locked>>76%54,360 psi88%1893 fps100%
Alliant Power Pro 300-MP<<locked>>88%49,095 psi79%1955 fps95.6%
Alliant RED DOT<<locked>>84%53,214 psi86%1581 fps100%
Alliant Sport Pistol²<<locked>>64%50,604 psi82%1703 fps100%
Alliant UNIQUE<<locked>>80%54,868 psi89%1742 fps100%
Baschieri & Pellagri 100<<locked>>80%55,216 psi89%1594 fps100%
Baschieri & Pellagri 102 Pistol<<locked>>96%53,142 psi86%1575 fps100%
Baschieri & Pellagri 103 Pistol²<<locked>>72%52,533 psi85%1578 fps100%
Hodgdon CFE Pistol²<<locked>>76%53,113 psi86%1644 fps100%
Hodgdon Clays<<locked>>96%54,882 psi89%1535 fps100%
Hodgdon H110<<locked>>88%50,662 psi82%1982 fps95.3%
Hodgdon HS-6²<<locked>>64%55,042 psi89%1795 fps100%
Hodgdon LilGun<<locked>>92%51,387 psi83%2014 fps99.6%
Hodgdon TrailBossᴾ<<locked>>100%24,831 psi40%1181 fps100%
Hodgdon Universal²<<locked>>76%55,347 psi89%1673 fps100%
Lovex D037.1²<<locked>>68%51,982 psi84%1906 fps100%
Lovex D037.2²<<locked>>76%54,099 psi87%1949 fps100%
Lovex S011²<<locked>>68%53,969 psi87%1617 fps100%
Lovex S020²<<locked>>72%54,665 psi88%1677 fps100%
Maxam CSB 1<<locked>>84%52,968 psi86%1624 fps100%
Maxam CSB 2<<locked>>80%54,534 psi88%1631 fps100%
Maxam CSB 3<<locked>>80%52,388 psi85%1601 fps100%
Maxam CSB 4<<locked>>80%54,288 psi88%1601 fps100%
Maxam CSB 5²<<locked>>76%51,924 psi84%1532 fps100%
Ramshot Enforcer<<locked>>84%51,488 psi83%1952 fps99.6%
Ramshot Silhouette²<<locked>>64%52,069 psi84%1713 fps100%
ReloadSwiss RS 12²<<locked>>68%51,532 psi83%1588 fps100%
ReloadSwiss RS 14ᴾ<<locked>>100%23,699 psi38%1201 fps100%
ReloadSwiss RS 20<<locked>>80%55,390 psi89%1716 fps100%
ReloadSwiss RS 24²<<locked>>76%52,852 psi85%1896 fps100%
ReloadSwiss RS 30*ᴾ<<locked>>100%38,159 psi62%1827 fps94.7%
Rottweil P 801²<<locked>>68%54,708 psi88%1591 fps100%
Rottweil P 806²<<locked>>76%51,532 psi83%1811 fps100%
Shooters World Heavy Pistol²<<locked>>76%54,099 psi87%1949 fps100%
Shooters World Major Pistol²<<locked>>68%51,982 psi84%1906 fps100%
SNPE Vectan A0<<locked>>84%54,810 psi89%1690 fps100%
SNPE Vectan A1²<<locked>>76%52,765 psi85%1614 fps100%
SNPE Vectan BA 9²<<locked>>76%52,750 psi85%1634 fps100%
SNPE Vectan BA10<<locked>>80%54,810 psi89%1542 fps100%
SNPE Vectan BA6 1/2ᴾ<<locked>>100%36,143 psi58%1722 fps98.3%
SNPE Vectan BA7 1/2<<locked>>84%51,750 psi84%1739 fps100%
SNPE Vectan BA9 1/2²<<locked>>76%51,822 psi84%1631 fps100%
SNPE Vectan SP 2²<<locked>>68%52,011 psi84%1844 fps100%
Somchem MP200²<<locked>>72%52,156 psi84%1706 fps100%
Somchem MS200<<locked>>80%55,390 psi89%1709 fps100%
Somchem S221²<<locked>>64%51,895 psi84%1844 fps100%
Somchem S265*ᴾ<<locked>>100%48,863 psi79%1880 fps93.8%
Vihtavuori 3N37²<<locked>>76%52,112 psi84%1752 fps100%
Vihtavuori 3N38<<locked>>88%53,272 psi86%1877 fps100%
Vihtavuori N105<<locked>>88%52,272 psi84%1873 fps100%
Vihtavuori N110ᴾ<<locked>>100%46,673 psi75%1906 fps98.9%
Vihtavuori N310²<<locked>>64%52,330 psi84%1503 fps100%
Vihtavuori N320²<<locked>>76%55,869 psi90%1608 fps100%
Vihtavuori N32C Tin Starᴾ<<locked>>100%43,207 psi70%1398 fps100%
Vihtavuori N330²<<locked>>72%53,200 psi86%1637 fps100%
Vihtavuori N340²<<locked>>76%52,170 psi84%1673 fps100%
Vihtavuori N350<<locked>>80%50,517 psi82%1726 fps100%
Winchester 231²<<locked>>64%52,054 psi84%1614 fps100%
Winchester 296*<<locked>>92%53,359 psi86%2041 fps93.8%
Winchester AutoComp <<locked>>80%52,199 psi84%1637 fps100%

Recommended = one of the top powders for this cartridge and bullet combination.

Start Load - Barrel Length: 8.38"

PowderChargeFRMaxP%V(0)z
Accurate 4100*²31.4 gr64%23,250 psi38%1463 fps85.5%
Accurate No. 11 FS*<<locked>>84%34,693 psi56%1706 fps86.1%
Accurate No. 2²<<locked>>60%36,274 psi59%1503 fps100%
Accurate No. 7²<<locked>>60%38,696 psi62%1739 fps100%
Accurate No. 9²<<locked>>60%29,573 psi48%1588 fps95.2%
Accurate Solo 1000²<<locked>>60%33,794 psi55%1358 fps100%
Accurate Solo 1250²<<locked>>60%31,662 psi51%1381 fps100%
Accurate TCM²<<locked>>60%29,675 psi48%1581 fps96.2%
ADI AP 100²<<locked>>60%23,061 psi37%1381 fps100%
ADI AP 70N²<<locked>>60%44,077 psi71%1552 fps100%
ADI APS 350²<<locked>>60%32,866 psi53%1253 fps100%
ADI APS 450²<<locked>>60%32,314 psi52%1276 fps100%
ADI AS 30²<<locked>>60%32,909 psi53%1316 fps100%
ADI AS 50N²<<locked>>60%36,535 psi59%1407 fps100%
Alliant 2400*²<<locked>>60%22,902 psi37%1457 fps88.2%
Alliant BE-86²<<locked>>60%32,706 psi53%1381 fps100%
Alliant BLUE DOT*²23.2 gr60%22,307 psi36%1414 fps94.5%
Alliant BULLSEYE²<<locked>>60%40,161 psi65%1578 fps100%
Alliant Green Dot²<<locked>>60%33,765 psi55%1371 fps100%
Alliant Herco²<<locked>>60%24,424 psi39%1332 fps100%
Alliant POWER PISTOL²<<locked>>60%34,026 psi55%1627 fps100%
Alliant Power Pro 300-MP*²<<locked>>72%28,021 psi45%1604 fps86.3%
Alliant RED DOT²<<locked>>60%32,271 psi52%1322 fps100%
Alliant Sport Pistol²<<locked>>60%45,208 psi73%1644 fps100%
Alliant UNIQUE²<<locked>>60%33,141 psi54%1480 fps100%
Baschieri & Pellagri 100²<<locked>>60%33,707 psi54%1355 fps100%
Baschieri & Pellagri 102 Pistol²<<locked>>60%23,061 psi37%1201 fps100%
Baschieri & Pellagri 103 Pistol²<<locked>>60%37,710 psi61%1421 fps100%
Hodgdon CFE Pistol²<<locked>>60%34,998 psi57%1437 fps100%
Hodgdon Clays²<<locked>>60%27,311 psi44%1194 fps100%
Hodgdon H110*²<<locked>>72%28,979 psi47%1624 fps86%
Hodgdon HS-6²<<locked>>60%48,457 psi78%1729 fps100%
Hodgdon LilGun*²33.5 gr68%20,842 psi34%1480 fps87%
Hodgdon TrailBoss²<<locked>>60%11,647 psi19%896 fps100%
Hodgdon Universal²<<locked>>60%37,130 psi60%1467 fps100%
Lovex D037.1²<<locked>>60%38,696 psi62%1739 fps100%
Lovex D037.2²<<locked>>60%30,269 psi49%1601 fps95.5%
Lovex S011²<<locked>>60%43,323 psi70%1509 fps100%
Lovex S020²<<locked>>60%38,522 psi62%1506 fps100%
Maxam CSB 1²<<locked>>60%29,907 psi48%1348 fps100%
Maxam CSB 2²<<locked>>60%33,388 psi54%1388 fps100%
Maxam CSB 3²<<locked>>60%32,677 psi53%1365 fps100%
Maxam CSB 4²<<locked>>60%34,243 psi55%1368 fps100%
Maxam CSB 5²<<locked>>60%36,419 psi59%1352 fps100%
Ramshot Enforcer*²<<locked>>60%22,104 psi36%1447 fps88.9%
Ramshot Silhouette²<<locked>>60%46,267 psi75%1654 fps100%
ReloadSwiss RS 12²<<locked>>60%42,076 psi68%1483 fps100%
ReloadSwiss RS 14²<<locked>>60%11,153 psi18%909 fps100%
ReloadSwiss RS 20²<<locked>>60%32,372 psi52%1450 fps100%
ReloadSwiss RS 24²<<locked>>60%31,749 psi51%1608 fps99.8%
ReloadSwiss RS 30*<<locked>>84%23,917 psi39%1526 fps85.1%
Rottweil P 801²<<locked>>60%44,875 psi72%1490 fps100%
Rottweil P 806²<<locked>>60%30,182 psi49%1542 fps100%
Shooters World Heavy Pistol²<<locked>>60%30,269 psi49%1601 fps95.5%
Shooters World Major Pistol²<<locked>>60%38,696 psi62%1739 fps100%
SNPE Vectan A0²<<locked>>60%30,240 psi49%1398 fps100%
SNPE Vectan A1²<<locked>>60%35,128 psi57%1414 fps100%
SNPE Vectan BA 9²<<locked>>60%34,722 psi56%1430 fps100%
SNPE Vectan BA10²<<locked>>60%35,491 psi57%1319 fps100%
SNPE Vectan BA6 1/2*²<<locked>>72%16,201 psi26%1276 fps85.1%
SNPE Vectan BA7 1/2²<<locked>>60%27,137 psi44%1417 fps100%
SNPE Vectan BA9 1/2²<<locked>>60%34,606 psi56%1430 fps100%
SNPE Vectan SP 2²<<locked>>60%39,885 psi64%1699 fps100%
Somchem MP200²<<locked>>60%37,695 psi61%1539 fps100%
Somchem MS200²<<locked>>60%33,388 psi54%1453 fps100%
Somchem S221²<<locked>>60%45,150 psi73%1765 fps100%
Somchem S265*<<locked>>84%30,864 psi50%1598 fps86.3%
Vihtavuori 3N37²<<locked>>60%32,619 psi53%1516 fps100%
Vihtavuori 3N38²<<locked>>60%23,264 psi38%1424 fps98.2%
Vihtavuori N105²<<locked>>60%21,161 psi34%1407 fps99.4%
Vihtavuori N110*²<<locked>>72%19,464 psi31%1394 fps85.8%
Vihtavuori N310²<<locked>>60%47,210 psi76%1450 fps100%
Vihtavuori N320²<<locked>>60%37,289 psi60%1407 fps100%
Vihtavuori N32C Tin Star²<<locked>>60%19,435 psi31%1060 fps100%
Vihtavuori N330²<<locked>>60%38,334 psi62%1473 fps100%
Vihtavuori N340²<<locked>>60%33,634 psi54%1457 fps100%
Vihtavuori N350²<<locked>>60%28,384 psi46%1444 fps100%
Winchester 231²<<locked>>60%46,325 psi75%1555 fps100%
Winchester 296*<<locked>>80%34,954 psi56%1762 fps86.6%
Winchester AutoComp ²<<locked>>60%31,531 psi51%1394 fps100%

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.

<<locked>> you need an access license to unlock this data.

This overview compares 29 powders for .460 S&W Mag. loaded with the .452 | 255gr | Rim Rock SWC Top Shelf. Winchester 296 delivers the highest muzzle velocity at 2,041 fps; across all powders the maximum-charge window runs from 1,181 fps to 2,041 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 29 of the 29 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 | 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 No. 11 FS, ReloadSwiss RS 30, Somchem S265 burn incompletely and react more sensitively to barrel length and temperature. Hodgdon TrailBoss, ReloadSwiss RS 14 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.

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