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.45 ACP vs .357 Rem Mag
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<blockquote data-quote="PrairieGhost" data-source="post: 346321" data-attributes="member: 704"><p>Not sure about the Coonan, but the 45 Super is no slouch. If you take out the 16# factory recoil wimp spring and replace it with a 26#, then put in a short number 3 barrel link, then a non radiused fireing pin stop you will increase lock up time which will let you push a 230 gr to 1250 fps. You could either purchase a barrel with full chamber support, or/and purchas Starline 45 Super brass. The most accurate load in my 1911 Kmber is a 200 gr hard cast at 1225 fps. That is with factory barrel and 45 ACP brass. I think that load gets you into the major category for some competition requirements.</p><p></p><p>I would guess without the cylinder to barrel gap that wants powder burn and pressure that the Coonan would get higher velocity. It would be fun to shoot it over the chronograph with the 357 Sig, and the 9x23. At the muzzle I'm sure the 45 Super would beat it, but all available bullets have the bc of an ash tray.</p></blockquote><p></p>
[QUOTE="PrairieGhost, post: 346321, member: 704"] Not sure about the Coonan, but the 45 Super is no slouch. If you take out the 16# factory recoil wimp spring and replace it with a 26#, then put in a short number 3 barrel link, then a non radiused fireing pin stop you will increase lock up time which will let you push a 230 gr to 1250 fps. You could either purchase a barrel with full chamber support, or/and purchas Starline 45 Super brass. The most accurate load in my 1911 Kmber is a 200 gr hard cast at 1225 fps. That is with factory barrel and 45 ACP brass. I think that load gets you into the major category for some competition requirements. I would guess without the cylinder to barrel gap that wants powder burn and pressure that the Coonan would get higher velocity. It would be fun to shoot it over the chronograph with the 357 Sig, and the 9x23. At the muzzle I'm sure the 45 Super would beat it, but all available bullets have the bc of an ash tray. [/QUOTE]
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