Load data for .454 Casull Mag. + .451 | 260gr | MAGTECH FMJ Flat

.454 Casull Mag. cartridge drawing
MAGTECH logo

Load Specifications

Bullet Manufacturer:MAGTECH
Bullet Weight:260 gr
Bullet Diameter:0.451"
Bullet Length:<<locked>>
Case Length (l3):1.398"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:46.8 Grains of Water
Primer Size:Small Rifle Magnum (SRM)
Barrel Length:7.5"
Max. allowed Pressure:56,565 psi

Load data in caliber .454 Casull Mag. with .451 | 260gr | MAGTECH FMJ Flat bullet and 78 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"

PowderChargeFRMaxP%V(0)z
Accurate 4100*<<locked>>96%46,601 psi82%1654 fps91.5%
Accurate No. 2²<<locked>>76%46,876 psi83%1440 fps100%
Accurate No. 7²<<locked>>76%49,139 psi87%1673 fps99.7%
Accurate No. 9<<locked>>84%48,341 psi85%1663 fps96.9%
Accurate Solo 1000<<locked>>84%50,169 psi89%1368 fps100%
Accurate Solo 1250<<locked>>84%48,080 psi85%1401 fps100%
Accurate TCM<<locked>>84%48,037 psi85%1654 fps97.7%
ADI AP 100ᴾ<<locked>>100%49,284 psi87%1588 fps100%
ADI AP 70N²<<locked>>72%50,981 psi90%1444 fps100%
ADI APS 350<<locked>>84%48,747 psi86%1257 fps100%
ADI APS 450<<locked>>84%48,066 psi85%1286 fps100%
ADI AS 30<<locked>>84%49,052 psi87%1325 fps100%
ADI AS 50N<<locked>>80%50,154 psi89%1378 fps100%
Alliant 2400<<locked>>96%50,053 psi88%1713 fps95.4%
Alliant BE-86<<locked>>84%50,357 psi89%1404 fps100%
Alliant BLUE DOTᴾ<<locked>>100%50,256 psi89%1683 fps99.4%
Alliant BULLSEYE²<<locked>>76%49,835 psi88%1506 fps100%
Alliant Green Dot<<locked>>84%50,038 psi88%1385 fps100%
Alliant Hercoᴾ<<locked>>100%50,111 psi89%1503 fps100%
Alliant POWER PISTOL<<locked>>80%46,572 psi82%1617 fps100%
Alliant Power Pro 300-MP*ᴾ<<locked>>100%46,949 psi83%1703 fps89.3%
Alliant RED DOT<<locked>>88%50,966 psi90%1365 fps100%
Alliant Sport Pistol²<<locked>>68%46,586 psi82%1476 fps100%
Alliant UNIQUE<<locked>>84%48,791 psi86%1493 fps100%
Baschieri & Pellagri 100<<locked>>80%47,268 psi84%1335 fps100%
Baschieri & Pellagri 102 Pistolᴾ<<locked>>100%48,849 psi86%1358 fps100%
Baschieri & Pellagri 103 Pistol²<<locked>>76%49,356 psi87%1375 fps100%
Hodgdon CFE Pistol<<locked>>80%48,515 psi86%1417 fps100%
Hodgdon Clays<<locked>>84%49,864 psi88%1280 fps100%
Hodgdon H110*ᴾ<<locked>>100%48,646 psi86%1726 fps89%
Hodgdon HS-6²<<locked>>68%49,124 psi87%1549 fps100%
Hodgdon LilGun*ᴾ<<locked>>100%40,161 psi71%1677 fps93.4%
Hodgdon Longshot²<<locked>>64%47,268 psi84%1519 fps100%
Hodgdon TrailBossᴾ<<locked>>100%21,524 psi38%991 fps100%
Hodgdon Universal<<locked>>80%50,981 psi90%1444 fps100%
Lovex D037.1²<<locked>>76%49,139 psi87%1673 fps99.7%
Lovex D037.2<<locked>>84%49,893 psi88%1680 fps97.2%
Lovex S011²<<locked>>72%50,894 psi90%1401 fps100%
Lovex S020²<<locked>>76%49,705 psi88%1447 fps100%
Maxam CSB 1<<locked>>88%48,559 psi86%1398 fps100%
Maxam CSB 2<<locked>>84%50,212 psi89%1407 fps100%
Maxam CSB 3<<locked>>84%48,878 psi86%1381 fps100%
Maxam CSB 4<<locked>>84%51,039 psi90%1381 fps100%
Maxam CSB 5<<locked>>80%50,082 psi89%1325 fps100%
Ramshot Enforcer<<locked>>96%51,082 psi90%1729 fps96.5%
Ramshot Silhouette²<<locked>>68%47,137 psi83%1483 fps100%
Ramshot True Blue²<<locked>>64%49,110 psi87%1532 fps100%
ReloadSwiss RS 12²<<locked>>72%48,515 psi86%1375 fps100%
ReloadSwiss RS 14ᴾ<<locked>>100%20,465 psi36%1007 fps100%
ReloadSwiss RS 20<<locked>>84%48,675 psi86%1473 fps100%
ReloadSwiss RS 24<<locked>>84%49,734 psi88%1660 fps100%
Rottweil P 801²<<locked>>68%47,529 psi84%1339 fps100%
Rottweil P 806<<locked>>84%47,239 psi84%1601 fps100%
Shooters World Heavy Pistol<<locked>>84%49,893 psi88%1680 fps97.2%
Shooters World Major Pistol²<<locked>>76%49,139 psi87%1673 fps99.7%
SNPE Vectan A0<<locked>>88%48,892 psi86%1447 fps100%
SNPE Vectan A1<<locked>>80%48,936 psi87%1394 fps100%
SNPE Vectan BA 9<<locked>>80%48,269 psi85%1411 fps100%
SNPE Vectan BA10<<locked>>80%49,835 psi88%1299 fps100%
SNPE Vectan BA6 1/2*ᴾ<<locked>>100%24,816 psi44%1335 fps87.8%
SNPE Vectan BA7 1/2<<locked>>92%49,748 psi88%1532 fps100%
SNPE Vectan BA9 1/2<<locked>>80%47,558 psi84%1407 fps100%
SNPE Vectan SP 2²<<locked>>76%49,545 psi88%1631 fps100%
Somchem MP200²<<locked>>76%47,427 psi84%1473 fps100%
Somchem MS200<<locked>>84%50,372 psi89%1473 fps100%
Somchem S221²<<locked>>68%45,455 psi80%1578 fps100%
Vihtavuori 3N37<<locked>>84%50,647 psi90%1552 fps100%
Vihtavuori 3N38<<locked>>96%48,269 psi85%1624 fps100%
Vihtavuori N105ᴾ<<locked>>100%49,980 psi88%1670 fps100%
Vihtavuori N110*ᴾ<<locked>>100%30,023 psi53%1463 fps88.5%
Vihtavuori N310²<<locked>>64%47,268 psi84%1263 fps100%
Vihtavuori N320²<<locked>>76%47,834 psi85%1348 fps100%
Vihtavuori N32C Tin Starᴾ<<locked>>100%37,521 psi66%1171 fps100%
Vihtavuori N330²<<locked>>76%48,689 psi86%1414 fps100%
Vihtavuori N340<<locked>>80%47,036 psi83%1440 fps100%
Vihtavuori N350<<locked>>88%48,341 psi85%1522 fps100%
Winchester 231²<<locked>>68%48,631 psi86%1398 fps100%
Winchester AutoComp <<locked>>84%47,543 psi84%1414 fps100%

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

Start Load - Barrel Length: 7.5"

PowderChargeFRMaxP%V(0)z
Accurate 4100*<<locked>>84%31,560 psi56%1447 fps85.1%
Accurate No. 2²<<locked>>60%29,312 psi52%1243 fps100%
Accurate No. 7*²<<locked>>60%28,514 psi50%1388 fps94.9%
Accurate No. 9*²<<locked>>64%25,005 psi44%1316 fps87.4%
Accurate Solo 1000²<<locked>>60%29,240 psi52%1138 fps100%
Accurate Solo 1250²<<locked>>60%26,600 psi47%1155 fps100%
Accurate TCM*²<<locked>>60%21,915 psi39%1247 fps86.4%
ADI AP 100²<<locked>>60%18,391 psi33%1119 fps96.2%
ADI AP 70N²<<locked>>60%37,246 psi66%1302 fps100%
ADI APS 350²<<locked>>60%30,284 psi54%1056 fps100%
ADI APS 450²<<locked>>60%28,892 psi51%1073 fps100%
ADI AS 30²<<locked>>60%29,051 psi51%1102 fps100%
ADI AS 50N²<<locked>>60%31,676 psi56%1181 fps100%
Alliant 2400*²<<locked>>76%27,934 psi49%1394 fps86.4%
Alliant BE-86²<<locked>>60%27,325 psi48%1158 fps100%
Alliant BLUE DOT*²14.4 gr60%17,521 psi31%1129 fps85.3%
Alliant BULLSEYE²<<locked>>60%32,996 psi58%1316 fps100%
Alliant Green Dot²<<locked>>60%29,428 psi52%1155 fps100%
Alliant Herco²<<locked>>60%20,349 psi36%1109 fps100%
Alliant POWER PISTOL²<<locked>>60%26,397 psi47%1325 fps99.1%
Alliant Power Pro 300-MP*<<locked>>96%40,988 psi72%1627 fps87%
Alliant RED DOT²<<locked>>60%28,427 psi50%1112 fps100%
Alliant Sport Pistol²<<locked>>60%37,405 psi66%1375 fps100%
Alliant UNIQUE²<<locked>>60%27,267 psi48%1234 fps100%
Baschieri & Pellagri 100²<<locked>>60%28,935 psi51%1138 fps100%
Baschieri & Pellagri 102 Pistol²<<locked>>60%19,740 psi35%1014 fps100%
Baschieri & Pellagri 103 Pistol²<<locked>>60%31,734 psi56%1198 fps100%
Hodgdon CFE Pistol²<<locked>>60%29,544 psi52%1207 fps100%
Hodgdon Clays²<<locked>>60%30,893 psi55%1076 fps100%
Hodgdon H110*<<locked>>96%42,409 psi75%1650 fps86.7%
Hodgdon HS-6²<<locked>>60%37,985 psi67%1430 fps100%
Hodgdon LilGun*<<locked>>88%26,963 psi48%1457 fps86.3%
Hodgdon Longshot²<<locked>>60%41,742 psi74%1463 fps100%
Hodgdon TrailBoss²<<locked>>60%10,878 psi19%758 fps100%
Hodgdon Universal²<<locked>>60%31,589 psi56%1234 fps100%
Lovex D037.1*²<<locked>>60%28,514 psi50%1388 fps94.9%
Lovex D037.2*²<<locked>>60%22,147 psi39%1257 fps85.1%
Lovex S011²<<locked>>60%36,825 psi65%1263 fps100%
Lovex S020²<<locked>>60%31,517 psi56%1257 fps100%
Maxam CSB 1²<<locked>>60%25,106 psi44%1129 fps100%
Maxam CSB 2²<<locked>>60%28,239 psi50%1168 fps100%
Maxam CSB 3²<<locked>>60%27,920 psi49%1145 fps100%
Maxam CSB 4²<<locked>>60%29,530 psi52%1148 fps100%
Maxam CSB 5²<<locked>>60%32,068 psi57%1135 fps100%
Ramshot Enforcer*²<<locked>>76%27,064 psi48%1391 fps87.2%
Ramshot Silhouette²<<locked>>60%37,275 psi66%1378 fps100%
Ramshot True Blue²<<locked>>60%42,989 psi76%1470 fps100%
ReloadSwiss RS 12²<<locked>>60%35,578 psi63%1243 fps100%
ReloadSwiss RS 14²<<locked>>60%10,443 psi18%771 fps100%
ReloadSwiss RS 20²<<locked>>60%25,599 psi45%1204 fps100%
ReloadSwiss RS 24*²<<locked>>60%24,091 psi43%1286 fps94.5%
Rottweil P 801²<<locked>>60%38,972 psi69%1253 fps100%
Rottweil P 806²<<locked>>60%22,408 psi40%1266 fps100%
Shooters World Heavy Pistol*²<<locked>>60%22,147 psi39%1257 fps85.1%
Shooters World Major Pistol*²<<locked>>60%28,514 psi50%1388 fps94.9%
SNPE Vectan A0²<<locked>>60%24,671 psi44%1158 fps100%
SNPE Vectan A1²<<locked>>60%29,979 psi53%1191 fps100%
SNPE Vectan BA 9²<<locked>>60%29,196 psi52%1201 fps100%
SNPE Vectan BA10²<<locked>>60%32,126 psi57%1115 fps100%
SNPE Vectan BA6 1/2*<<locked>>96%22,481 psi40%1286 fps85.8%
SNPE Vectan BA7 1/2²<<locked>>60%21,959 psi39%1165 fps100%
SNPE Vectan BA9 1/2²<<locked>>60%28,921 psi51%1194 fps100%
SNPE Vectan SP 2²<<locked>>60%30,443 psi54%1394 fps100%
Somchem MP200²<<locked>>60%30,676 psi54%1280 fps100%
Somchem MS200²<<locked>>60%27,485 psi49%1211 fps100%
Somchem S221²<<locked>>60%34,766 psi61%1440 fps99.7%
Vihtavuori 3N37²<<locked>>60%25,556 psi45%1250 fps100%
Vihtavuori 3N38*²14 gr60%17,927 psi32%1135 fps90.7%
Vihtavuori N105*²13.8 gr60%15,258 psi27%1115 fps92.5%
Vihtavuori N110*<<locked>>96%26,948 psi48%1407 fps86.5%
Vihtavuori N310²<<locked>>60%42,859 psi76%1220 fps100%
Vihtavuori N320²<<locked>>60%31,981 psi57%1181 fps100%
Vihtavuori N32C Tin Star²<<locked>>60%17,376 psi31%896 fps100%
Vihtavuori N330²<<locked>>60%31,372 psi55%1230 fps100%
Vihtavuori N340²<<locked>>60%27,354 psi48%1211 fps100%
Vihtavuori N350²<<locked>>60%22,524 psi40%1191 fps100%
Winchester 231²<<locked>>60%39,378 psi70%1306 fps100%
Winchester AutoComp ²<<locked>>60%26,049 psi46%1165 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 39 powders for .454 Casull Mag. loaded with the .451 | 260gr | MAGTECH FMJ Flat. Ramshot Enforcer delivers the highest muzzle velocity at 1,729 fps; across all powders the maximum-charge window runs from 991 fps to 1,729 fps. ADI AP 100 gives the best case fill at 100 %, and 39 of the 39 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (390 MPa), the top charges use 36–90 %, leaving at least 10 % headroom. ADI AP 100, Alliant BLUE DOT, Alliant Herco 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 .451 | 260gr | MAGTECH FMJ Flat they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, 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.

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