Doug,

That was a very nice and educational commentary! I actually read it twice to make sure I absorbed the information you posted.

Now I have a question for you that has perplexed me for some time. I own a few WWll Military rifles such as an M1 Garand and M1 Carbine that shoot copper jacketed ammo only. In the instructional booklet that came with the Carbine it specifically states NOT to use copper bore cleaner because it will migrate into the hole in the barrel and screw up the piston. They also advise NOT removing the piston for cleaning on a regular basis, as it is staked. I have a can of the foam type copper cleaner as well, and again they state that it should not be used on gas operated weapons for the same reason. I have been using a standard cleaning solution and while it does clean the barrel after a fashion, I know there is still copper fowling in it.

I would appreciate your thoughts on this matter, and I thank you in advance.

Regards,
chief38