If you want to try some real good stuff, www.sentrysolutions.com
they have the moly burnishing powder kits for your bore, i used it on one of my 338snipe tac rifle bbls, it would only shoot in the 3/4moa range and the bbl would fowl quickly. I talked with Mike Rock at Rock Creek BBLs, he recomends this on all new bbls he sells. they break in fast and dont foul. So i ordered some for a new bbl i was installing, thought, heck why not try it on my other gun too, it has over 60 rounds through it. I followed Mikes instructions and after i re-broke the bbl in, the groups dropped to 1/4 moa. It will now shoot 5-7" groups at 1000yds. This is a hunting rifle. I use the moly burnishing system on all new bbls that leave my shop. You dont want your bore to smooth, it will copper foul very fast.
check it out,