1948,

The lead will smoke the front sight some, and the top of the gun. No biggie there. It will also build deposits inside the comp and this has not affected my accurcay in any way, but the deposits can be a pain to get out. especially at the front of the comp, at the lower end in front of the barrel(threads). Seems to be mostly cosmetic, but I would guess at some point it has to be dealt with. My lead shooting is more minimal with using jacketed, but ymmv.

I had a frame mounted rail on an earlier gun, and I did not have a blast shield installed. The lead was a no go with a scope, and pretty hard on a Jpoint. Again, with this setup a blast shield would have been needed.

Craig