well ran the cotton through the barrel , no fibers got caught and I cant really see anything in there that would cause problems, no I may still shoot some conicals to just be safe I know my gun shop sells, remington ones I dont remember the name but they come in a little green hard plastic box, will these do and what do I need to to do as I never shot "big" bullets before only saboted ones?? any grain weight idea I am shooting a side kick..