Para308 Posted November 12, 2011 Report Share Posted November 12, 2011 I am in the process of purchasing a Bellevue, WA Detonics Scoremaster in .451 Det. Magnum and it has a second barrel in .45ACP. Both barrels are 6 inches long. It also comes with 500 new cases (specially produced for Detonics with the Detonics head stamp) in .451 Det. Mag. Midway sells an aftermarket version for $60+ per box of 50! Quote Link to comment Share on other sites More sharing options...
edgecrusher Posted November 12, 2011 Report Share Posted November 12, 2011 What is the . 451 round about? Ballistics and purpose Quote Link to comment Share on other sites More sharing options...
imschur Posted November 12, 2011 Report Share Posted November 12, 2011 Very cool! Quote Link to comment Share on other sites More sharing options...
98Z5V Posted November 20, 2011 Report Share Posted November 20, 2011 Oh, Sweet Mary, Mother of... :oIt's the .45 ACP on steroids. I just had to look this one up, and I found some scary stuff. I think I want one, too... :P451 Detonics Historical Notes:Various mechanical features of the Colt M1911 A1 auto pistol have prevented any significant ballistic advantage in the cartridges it chambers. One of these weaknesses is that a portion of the cartridge head is unsupported so operating pressures are dictated by the strength of that portion of the case. The 45 Winchester Magnum has a substantially stronger case head and dimensions identical to the 45 ACP except for greater length. In their search for a more potent 45 caliber round for their 45 caliber pistols, the Detonics Mfg. Co. decided to take advantage of this by trimming the 45 Winchester Magnum from its normal length of 1.198 inches to that of .942 inch. This is still sufficiently longer than the 45 ACP so that the 451 Detonics cartridge will not chamber in handguns intended for the 45 ACP. The newly created case will handle much higher pressures than the original 45 ACP and still function through actions of the same length. Detonics not only chambered their Scoremaster and Combat Master semi-auto pistols for the 451 Detonics, they also offered a conversion kit for the Colt Government, Gold Cup, and Commander pistols. The cartridge was introduced in 1983 and Detonics furnished empty cases headstamped 451 Det/Mag. Alternately, cases can be made from cut down 308 Winchester brass. The Detonics company has since gone out of business. Brass in this caliber is no longer available.General Comments:The idea of a more powerful 45 ACP cartridge has long intrigued 45 auto buffs. The 451 Detonics was a viable solution to what has heretofore been an insoluble problem. A 185 grain bullet at 1353 fps and a 200 grain at 1281 fps is a significant boost to the usual 45 ACP performance of a 230 grain at 850 fps. Recoil at this top loading gets rather heavy, so most users of the 451 will want to stay below the top loads. The 451 Detonics is a good self defense or field cartridge for small game or varmint shooting. Quote Link to comment Share on other sites More sharing options...
Robocop1051 Posted November 20, 2011 Report Share Posted November 20, 2011 That is a pretty pistol!It reminds me of an old LAR Grizzly Mk1 that father carried. He hunted Alaskan tundra often, and kept that for bear. That .45 Win Mag is a beast. The Delta Elite with full load 10mm is my heavy auto of choice now. Quote Link to comment Share on other sites More sharing options...
planeflyer21 Posted November 20, 2011 Report Share Posted November 20, 2011 98Z5V, you poor deprived soul!Please...allow me to help you.http://460rowland.com/http://en.wikipedia.org/wiki/.460_RowlandA buddy of mine thought to himself "This looks like an interesting cartridge," and got a MechTech carbine for the .460 Rowland. Stick a fork in him...he's done! .44 Mag performance from a 1911.Glad I could help! 8)Jon Quote Link to comment Share on other sites More sharing options...
Jgun Posted November 20, 2011 Report Share Posted November 20, 2011 Clark also offers a drop in .460 barrel kit. They say that with the comp on the barrel it's not to punishing for the gun. Iv'e always wanted to shoot one of these. http://www.clarkcustomguns.com/rowland.htm Quote Link to comment Share on other sites More sharing options...
Jgun Posted November 20, 2011 Report Share Posted November 20, 2011 That .451 IS a pretty gun, and I bet it's got some decent collectore value. May not want to shoot that one TOO much. Quote Link to comment Share on other sites More sharing options...
Robocop1051 Posted November 20, 2011 Report Share Posted November 20, 2011 .400 CorBon is a drop in conversion too. Aka, the "Poor Mans 10mm" Quote Link to comment Share on other sites More sharing options...
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