QUOTE .....The concern I have is the aluminum frame, and causing damage to it by firing NATO, OR +P ammo. I also don't want to spend more than necessary for shooting paper. Does anyone have any ideas about target ammo, that wight work without damaging the gun?"......

Although there is no real reason to shoot a regular diet of +P ammo for purposes of practice, the S&W will perform a lifetime of service with +P ammunition. Do not concern yourself with the aluminum frame, a midwestern State Police Dept regularly carried and shot thousands of rounds of "+P+" (yes, +P+) through their M39-2's.

To this day, many of their retirees still carry their "old 39's" stoked with the Winchester +P+ from back in the day.