[masraum]

Originally Posted by Jeff Higgins

The autoloaders all use .355" diameter bullets, where the revolvers use .357"-.358" diameter.

SAAMI - the Sporting Arms and Ammunition Manufacturer's Institute - is the agreed upon "governing body" that establishes safe working pressures for all ammunition sold in the United States. While not "legally binding", since it's only a trade association, most manufacturers follow their guidelines. There are some "specialty" manufacturers that do, in very specific cases, vastly exceed those guidelines.

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If you are going to insist on carrying these things, you owe it to yourselves to fully understand their limitations, and the limitations you might impose through poor ammo choices. Use the heaviest non-expanding bullet you can find. Use a flat nose, or "truncated cone" design if you can find it. You want to stack everything up towards maximum penetration, because these things ain't got much to begin with. Do not hinder penetration by using some fancy hollow point. Beyond that, +P, and +P+ is a waste of time in these things.

Based on several old threads and primarily your posts, I do have 147gr flat nose FMJ or truncated cone rounds.