According to the Tech Reps at S&W, .38 +P+ IS NOT recommended in their revolvers.

Pressure levels vary, the case has significantly less volume than a .357 case and can cause spikes in chamber pressure.

The round is basically a "proof load" and not intended for duty or sport. It was orignally developed to duplicate .357 performance in weapons chambered for .38 spl. to avoid the "stigma" of Law Enforcement carrying magnums that could really hurt the bad guys?!

Nayth