Load data for .460 S&W Mag. + .452 | 300gr | Rim Rock SWC

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

Load Specifications

Bullet Manufacturer:Rim Rock
Bullet Weight:300 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 | 300gr | Rim Rock SWC bullet and 79 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon LilGun, Hodgdon H110 and Alliant Power Pro 300-MP.

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.

A valid access license is required to use the Personalized Load Calculator.

You can find more information in our FAQ: How can I use the Personalized Load Calculator?

Max Load - Barrel Length: 8.38"

PowderChargeFRMaxP%V(0)z
Accurate 4100<<locked>>88%55,593 psi90%1814 fps99.2%
Accurate No. 11 FS<<locked>>96%54,143 psi87%1814 fps95.2%
Accurate No. 2²<<locked>>72%53,548 psi86%1519 fps100%
Accurate No. 7²<<locked>>68%53,809 psi87%1745 fps100%
Accurate No. 9²<<locked>>76%54,215 psi88%1772 fps100%
Accurate Solo 1000<<locked>>80%53,882 psi87%1430 fps100%
Accurate Solo 1250<<locked>>80%53,664 psi87%1470 fps100%
Accurate TCM²<<locked>>76%53,766 psi87%1755 fps100%
ADI AP 100<<locked>>92%55,143 psi89%1660 fps100%
ADI AP 70N²<<locked>>68%55,709 psi90%1509 fps100%
ADI APS 350<<locked>>84%53,519 psi86%1348 fps100%
ADI APS 450<<locked>>84%53,461 psi86%1375 fps100%
ADI AS 30<<locked>>84%55,622 psi90%1421 fps100%
ADI AS 50N²<<locked>>76%54,099 psi87%1447 fps100%
Alliant 2400<<locked>>84%52,040 psi84%1788 fps99.8%
Alliant BE-86<<locked>>80%55,579 psi90%1473 fps100%
Alliant BLUE DOT<<locked>>88%51,866 psi84%1732 fps100%
Alliant BULLSEYE²<<locked>>68%50,705 psi82%1529 fps100%
Alliant Green Dot<<locked>>80%53,751 psi87%1447 fps100%
Alliant Herco<<locked>>92%53,388 psi86%1545 fps100%
Alliant POWER PISTOL²<<locked>>72%50,096 psi81%1667 fps100%
Alliant Power Pro 300-MP<<locked>>88%51,242 psi83%1811 fps97.5%
Alliant RED DOT<<locked>>84%54,085 psi87%1427 fps100%
Alliant Sport Pistol²<<locked>>64%52,025 psi84%1545 fps100%
Alliant UNIQUE<<locked>>80%55,927 psi90%1575 fps100%
Baschieri & Pellagri 100²<<locked>>76%51,474 psi83%1398 fps100%
Baschieri & Pellagri 102 Pistol<<locked>>96%54,360 psi88%1427 fps100%
Baschieri & Pellagri 103 Pistol²<<locked>>72%53,592 psi87%1430 fps100%
Hodgdon CFE Pistol²<<locked>>76%54,201 psi88%1486 fps100%
Hodgdon Clays<<locked>>96%55,463 psi90%1388 fps100%
Hodgdon H110<<locked>>88%52,895 psi85%1837 fps97.3%
Hodgdon LilGun<<locked>>92%53,824 psi87%1864 fps100%
Hodgdon TrailBossᴾ<<locked>>100%25,309 psi41%1066 fps100%
Hodgdon Universal²<<locked>>72%51,227 psi83%1467 fps100%
Lovex D037.1²<<locked>>68%53,809 psi87%1745 fps100%
Lovex D037.2²<<locked>>76%55,854 psi90%1788 fps100%
Lovex S011²<<locked>>68%55,013 psi89%1463 fps100%
Lovex S020²<<locked>>72%55,883 psi90%1516 fps100%
Maxam CSB 1<<locked>>84%53,940 psi87%1470 fps100%
Maxam CSB 2<<locked>>80%55,724 psi90%1476 fps100%
Maxam CSB 3<<locked>>80%53,374 psi86%1447 fps100%
Maxam CSB 4<<locked>>80%55,042 psi89%1444 fps100%
Maxam CSB 5²<<locked>>76%52,649 psi85%1385 fps100%
Ramshot Enforcer<<locked>>84%53,708 psi87%1801 fps100%
Ramshot Silhouette²<<locked>>64%53,476 psi86%1555 fps100%
ReloadSwiss RS 12²<<locked>>68%52,533 psi85%1434 fps100%
ReloadSwiss RS 14ᴾ<<locked>>100%24,308 psi39%1086 fps100%
ReloadSwiss RS 20²<<locked>>76%51,532 psi83%1509 fps100%
ReloadSwiss RS 24²<<locked>>76%54,810 psi89%1736 fps100%
ReloadSwiss RS 30ᴾ<<locked>>100%39,653 psi64%1699 fps97%
Rottweil P 801²<<locked>>68%55,521 psi90%1440 fps100%
Rottweil P 806²<<locked>>76%52,997 psi86%1650 fps100%
Shooters World Heavy Pistol²<<locked>>76%55,854 psi90%1788 fps100%
Shooters World Major Pistol²<<locked>>68%53,809 psi87%1745 fps100%
SNPE Vectan A0<<locked>>84%55,811 psi90%1529 fps100%
SNPE Vectan A1²<<locked>>76%53,722 psi87%1460 fps100%
SNPE Vectan BA 9²<<locked>>76%53,809 psi87%1480 fps100%
SNPE Vectan BA10<<locked>>80%55,172 psi89%1391 fps100%
SNPE Vectan BA6 1/2ᴾ<<locked>>100%37,913 psi61%1594 fps99.5%
SNPE Vectan BA7 1/2<<locked>>84%53,476 psi86%1581 fps100%
SNPE Vectan BA9 1/2²<<locked>>76%53,069 psi86%1480 fps100%
SNPE Vectan SP 2²<<locked>>68%53,722 psi87%1680 fps100%
Somchem MP200²<<locked>>72%53,432 psi86%1545 fps100%
Somchem MS200²<<locked>>76%51,648 psi83%1506 fps100%
Somchem S221²<<locked>>64%53,519 psi86%1680 fps100%
Somchem S265ᴾ<<locked>>100%50,633 psi82%1739 fps95.9%
Vihtavuori 3N37²<<locked>>76%53,519 psi86%1591 fps100%
Vihtavuori 3N38<<locked>>88%55,259 psi89%1713 fps100%
Vihtavuori N105<<locked>>88%54,360 psi88%1709 fps100%
Vihtavuori N110ᴾ<<locked>>100%48,863 psi79%1759 fps99.8%
Vihtavuori N310²<<locked>>64%52,982 psi86%1355 fps100%
Vihtavuori N320²<<locked>>72%51,474 psi83%1407 fps100%
Vihtavuori N32C Tin Starᴾ<<locked>>100%43,918 psi71%1263 fps100%
Vihtavuori N330²<<locked>>72%54,462 psi88%1480 fps100%
Vihtavuori N340²<<locked>>76%53,592 psi87%1516 fps100%
Vihtavuori N350<<locked>>80%51,967 psi84%1568 fps100%
Winchester 231²<<locked>>64%53,142 psi86%1460 fps100%
Winchester 296<<locked>>92%55,666 psi90%1893 fps96%
Winchester AutoComp <<locked>>80%53,534 psi86%1486 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*²<<locked>>60%20,871 psi34%1283 fps85.9%
Accurate No. 11 FS*<<locked>>80%31,502 psi51%1512 fps86.7%
Accurate No. 2²<<locked>>60%37,043 psi60%1358 fps100%
Accurate No. 7²<<locked>>60%40,263 psi65%1594 fps100%
Accurate No. 9²<<locked>>60%30,690 psi50%1467 fps97.2%
Accurate Solo 1000²<<locked>>60%34,272 psi55%1224 fps100%
Accurate Solo 1250²<<locked>>60%32,692 psi53%1250 fps100%
Accurate TCM²<<locked>>60%30,850 psi50%1463 fps98%
ADI AP 100²<<locked>>60%23,641 psi38%1260 fps100%
ADI AP 70N²<<locked>>60%44,918 psi73%1404 fps100%
ADI APS 350²<<locked>>60%33,431 psi54%1132 fps100%
ADI APS 450²<<locked>>60%32,648 psi53%1148 fps100%
ADI AS 30²<<locked>>60%33,315 psi54%1184 fps100%
ADI AS 50N²<<locked>>60%37,362 psi60%1273 fps100%
Alliant 2400*²<<locked>>60%23,873 psi39%1352 fps91.4%
Alliant BE-86²<<locked>>60%33,518 psi54%1250 fps100%
Alliant BLUE DOT²<<locked>>60%23,003 psi37%1302 fps96.6%
Alliant BULLSEYE²<<locked>>60%40,901 psi66%1424 fps100%
Alliant Green Dot²<<locked>>60%34,330 psi55%1237 fps100%
Alliant Herco²<<locked>>60%24,990 psi40%1204 fps100%
Alliant POWER PISTOL²<<locked>>60%35,070 psi57%1486 fps100%
Alliant Power Pro 300-MP*²31.4 gr68%25,237 psi41%1414 fps86.9%
Alliant RED DOT²<<locked>>60%32,895 psi53%1194 fps100%
Alliant Sport Pistol²<<locked>>60%46,383 psi75%1490 fps100%
Alliant UNIQUE²<<locked>>60%34,069 psi55%1339 fps100%
Baschieri & Pellagri 100²<<locked>>60%34,664 psi56%1227 fps100%
Baschieri & Pellagri 102 Pistol²<<locked>>60%23,743 psi38%1089 fps100%
Baschieri & Pellagri 103 Pistol²<<locked>>60%38,450 psi62%1289 fps100%
Hodgdon CFE Pistol²<<locked>>60%35,897 psi58%1299 fps100%
Hodgdon Clays²<<locked>>60%27,891 psi45%1083 fps100%
Hodgdon H110*²31.4 gr68%26,092 psi42%1430 fps86.5%
Hodgdon LilGun*²28.7 gr64%18,985 psi31%1306 fps87.9%
Hodgdon TrailBoss²<<locked>>60%11,937 psi19%810 fps100%
Hodgdon Universal²<<locked>>60%37,927 psi61%1329 fps100%
Lovex D037.1²<<locked>>60%40,263 psi65%1594 fps100%
Lovex D037.2²<<locked>>60%31,430 psi51%1480 fps97.5%
Lovex S011²<<locked>>60%44,121 psi71%1362 fps100%
Lovex S020²<<locked>>60%39,639 psi64%1365 fps100%
Maxam CSB 1²<<locked>>60%30,516 psi49%1217 fps100%
Maxam CSB 2²<<locked>>60%34,200 psi55%1257 fps100%
Maxam CSB 3²<<locked>>60%33,446 psi54%1234 fps100%
Maxam CSB 4²<<locked>>60%34,867 psi56%1234 fps100%
Maxam CSB 5²<<locked>>60%36,738 psi59%1217 fps100%
Ramshot Enforcer*²<<locked>>60%23,119 psi37%1345 fps92.1%
Ramshot Silhouette²<<locked>>60%47,355 psi76%1496 fps100%
ReloadSwiss RS 12²<<locked>>60%42,844 psi69%1339 fps100%
ReloadSwiss RS 14²<<locked>>60%11,487 psi19%823 fps100%
ReloadSwiss RS 20²<<locked>>60%33,199 psi54%1312 fps100%
ReloadSwiss RS 24²<<locked>>60%33,040 psi53%1476 fps100%
ReloadSwiss RS 30*<<locked>>80%22,075 psi36%1358 fps86.3%
Rottweil P 801²<<locked>>60%45,469 psi73%1345 fps100%
Rottweil P 806²<<locked>>60%31,459 psi51%1414 fps100%
Shooters World Heavy Pistol²<<locked>>60%31,430 psi51%1480 fps97.5%
Shooters World Major Pistol²<<locked>>60%40,263 psi65%1594 fps100%
SNPE Vectan A0²<<locked>>60%30,995 psi50%1263 fps100%
SNPE Vectan A1²<<locked>>60%35,926 psi58%1280 fps100%
SNPE Vectan BA 9²<<locked>>60%35,578 psi57%1296 fps100%
SNPE Vectan BA10²<<locked>>60%36,158 psi58%1194 fps100%
SNPE Vectan BA6 1/2*²<<locked>>68%14,982 psi24%1132 fps86.4%
SNPE Vectan BA7 1/2²<<locked>>60%28,021 psi45%1289 fps100%
SNPE Vectan BA9 1/2²<<locked>>60%35,418 psi57%1293 fps100%
SNPE Vectan SP 2²<<locked>>60%41,278 psi67%1549 fps100%
Somchem MP200²<<locked>>60%38,450 psi62%1391 fps100%
Somchem MS200²<<locked>>60%34,287 psi55%1316 fps100%
Somchem S221²<<locked>>60%46,702 psi75%1611 fps100%
Somchem S265*<<locked>>80%28,631 psi46%1421 fps87.2%
Vihtavuori 3N37²<<locked>>60%33,489 psi54%1378 fps100%
Vihtavuori 3N38²<<locked>>60%24,134 psi39%1309 fps99.4%
Vihtavuori N105²<<locked>>60%22,118 psi36%1296 fps100%
Vihtavuori N110*²<<locked>>68%17,869 psi29%1234 fps86.9%
Vihtavuori N310²<<locked>>60%47,790 psi77%1306 fps100%
Vihtavuori N320²<<locked>>60%38,334 psi62%1276 fps100%
Vihtavuori N32C Tin Star²<<locked>>60%19,870 psi32%958 fps100%
Vihtavuori N330²<<locked>>60%39,175 psi63%1332 fps100%
Vihtavuori N340²<<locked>>60%34,447 psi56%1319 fps100%
Vihtavuori N350²<<locked>>60%29,298 psi47%1312 fps100%
Winchester 231²<<locked>>60%47,587 psi77%1411 fps100%
Winchester 296*²<<locked>>76%31,778 psi51%1562 fps87.3%
Winchester AutoComp ²<<locked>>60%32,169 psi52%1260 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 | 300gr | Rim Rock SWC. Winchester 296 delivers the highest muzzle velocity at 1,893 fps; across all powders the maximum-charge window runs from 1,066 fps to 1,893 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 39–90 %, 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, Hodgdon H110, Alliant Power Pro 300-MP rank at the top here: for .460 S&W Mag. with the .452 | 300gr | Rim Rock SWC they combine a high case fill with complete burn and sit in the upper velocity band. 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.

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