In search for new pocket gun.

[photoman]

On another forum a retired gunsmith maintains that a "light-for-caliber" slug (i.e. <125Gr.) can result in "flamecutting" of the top strap. I have no personal knowledge/experience, but, I stick to 158Gr. or 135 Short Barrel Gold Dots for my 642.
P.S. I have the gunsmith's book and he is pretty good!

Absolutely true for the K frame .357 magnum guns. I've never heard, read or seen a case with the Airweight .38 Special guns.