45 win mag

[wheelgun]

I have read about 357mag ringing the chambers in a 357 max,44 mag in a 445 super mag.Do you think 45 acp load would ring my 45 win mag chamber.I was thinking about 200 grain xtp or cast over 6 grains of Unique,just for plinking and practice.What do you think.

[Johnly]

I have read about 357mag ringing the chambers in a 357 max,44 mag in a 445 super mag.Do you think 45 acp load would ring my 45 win mag chamber.I was thinking about 200 grain xtp or cast over 6 grains of Unique,just for plinking and practice.What do you think.

Both of the cartridges you mention headspace on the case mouth, so it won't be possible to fire 45 ACP in a 45 Win Mag barrel.

[wheelgun]

I know they head space on the mouth but a friend gave me a few rounds sunday to try.I shot 12 rounds they all touched at 40 yards.Pretty good group i thought.

[KN]

Youll be hard pressed to find 45acp that acctually headspaces on the case mouth. Most of the brass varies way too much in length to accomplish this. You will find that the extractor is holding the brass in place durring firing or you would be having all kinds of missfires from the case floating back and fourth in the chamber. I'm not saying that 45acp was not designed to headspace on the shoulder, I'm just saying that it rarly happens. There was an artical by one of the reloading writers recently about just this. I don't remember which mag it was, maybe someone else remembers. As to ringing your chamber I doubt that the 45acp would ever be hot enough to couse this. It usually happens with the magnum rounds. Such as 357mag in a 357max. 44mag in a 445 super mag. Shoot and have fun,  KN

[Flash]

I have shot far too many 45acp rounds in my 45 Win Mag to count. They are great plinking rounds and it's the reason i bought it. At the time, I owned a Springfield Armory 1911 and wanted to use the ammo elsewhere and test for accuracy, rather than just rely on the 1911. I have shot full house loads and mere 700 fps cast loads with great success. I have never had a ring in the chamber of any gun that shared a shorter cartridge. I compare that wives tale to predicting the weather by the color of caterpillar hairs.

[HHI-7420]

KN, read the latest issue of Reloader mag.- the .45acp does headspace on the casemouth.  Pat

[PaulS]

I would tend to agree that it would not be safe to recommend, across-the-board, to use 45 ACP in a 45 Mag weapon but laying that aside the 45 ACP does not generate a high enough pressure to ring the chamber of the magnum so long as it is thoroughly cleaned between changes in cartridge types.

PaulS