THE BASIC PRINCIPLES OF SMITH & WESSON 640 FOR SALE

Tried out a Ruger LCP 380. It experienced a problem that it would not return to battery following charging Unless of course you truly Permit the slide go rapidly. Gave up on it. (Also a problem with Ruger LCR .3s7mag. Cause would get stuck at rear of pull.I then took the gun for the variety to qualify all over again. Everytime I fired, the magazine