tn, this guy must be a REAL good friend! I'm not sure I'd let some one shoot in MY basement that needs a lot of improvement !!
As far as the barrel and .22 ammo, it will be quite accurate and more powerful than when shot from a revolver. There is NO loss due to a frame cylinder gap.I use a Ruger auto in MY basement. Any GUESTS must use the 44,45 or 38 with those plastic ,primer powered bullets!