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Old May 25, 2013, 03:27 PM   #16
Hammerhead
Senior Member
 
Join Date: May 31, 2004
Location: Minnesota
Posts: 1,494
A .38 Super load will fit the cylinder of my F/A .357 or GP100, but will not enter the cylinder of my S&W model 10 (good). The brass on .38 Super is generally very thick at the case mouth.
I have never attempted to fire .38 Super from my .357 revolvers, but I have fired a few .38 Supers in a T/C Contender with an MGM .357 magnum barrel. Shot just fine, but the cases needed help getting extracted.

I don't like the fact that the bearing surface of a .38 Super bullet is unsupported after it leaves the shorter Super brass and before it is supported by the .357 throat. The bullet has a chance to yaw in that gap. With plated or lead bullets, any misalignment as it hits the shoulder at the end of the chamber will scrape the bullet.
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