If a gun is rated for +P it should be able to handle a steady diet of it. My wife has a 637 Airweight with an aluminum alloy frame that's rated for +P. It's got some pretty snappy recoil for a .38 even with non +P loads. Especially with the stock grips. It has a lifetime warranty so if I wanted to shoot nothing but +P out of it I would and not worry about it.