Thread: .45 vs. .357
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Old April 10th, 2008
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Default Re: .45 vs. .357
Quote:
Originally Posted by DPB View Post
If you are planning to shoot a lot, here is another point to consider: .45 guns were pretty much all built to be .45 guns. Most of the .357 SIGs are built on 9mm platforms. Given that the .357 SIG operates at significantly higher pressures than 9mm, I would expect the service life of the guns to be a lot shorter, with more parts breakage along the way. Of course, this will mostly only be true with a hard use gun, and a quality .357 SIG will probably outlast the shooting 99% of owners will do with it.
If I am recalling things correctly there may be a bit of confusion here ... IIRC the .357SIG is a .40 cal case necked down to a take a .9mm bullet. Many of the most popular .357SIG handguns (Glock, Sig, XD) are nothing more than the .40 cal model with a different barrel. You use standard .40 cal mags for the .357 Sig rounds.

I do not own a .357 Sig but if I decided to purchase one I would probably buy a Sig .40 cal ad then order a .357 Sig barrel for it.
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