.450 Mongo. I would like to bring this back to the top. I just recently found out that others had been experimenting with this. I was fooling around with it last year, but gave up due to brass-sizing problems. Recently, I have been snowed-in, and had time to fool around with it. I have succesfully formed brass using the suggested method with 410 shot cups, as suggested on Chris' old (almost forgotten) website. However the base of the shells were not fully fire-formed and had extraction problems. The mouth of the shells was good though and I remedied the problem by re-loading them again with a 200 gr cast 45. Now they cycle perfectly. I E-mailed everyone involved at the old site, but all mail came back undeleverable, but.....the name 'cknight' sounded very familiar...and now I have found the 'instigator' here at Graybeard's.
I have a couple of real pretty bullets here, I would like to see this developing cartridge research brought back to life. This being a cross between 444 Marlin/ and 45-70..fired in 45/410 chambers....I realize this could be a potentially powerful round for the Contender and Encore...but my interest at this point is focusing on a XXXLONG-COLT that does not have the normal 'long jump' to the rifling as does a 45 Colt. So far, I am staying with modest loads with cast bullets. As I said earlier...I am very snowed-in, it is impossible to get anywhere to do any real testing with these loads, but I find it totally fascinating.
On the other hand....I do not understand why these barrels do not have the rifling start where it would be more effective with the Colts, it seems to me that the smaller diameter 410's would fit inside this rifling. But then again...if they did it right in the first place....then I wouldn't be haveing so much fun playing with the Mongo.
How about some more thoughts here? Please correct me if I am wrong with any of this stuff, or feel free to add and expand with your ideas. Robert
