Polishing barrel first time

Its hard to say because I also fixed some issues with spiraling pellets at the same time I polished the bore. It can't hurt. I've heard nothing but good things about it. I found a small 1/4 ounce container of jb bore paste for like 3.99 at Brownells along with a bore mop and rod. So far my wildcat is shooting very accuratetly.
 
FastEddieIts hard to say because I also fixed some issues with spiraling pellets at the same time I polished the bore. It can't hurt. I've heard nothing but good things about it. I found a small 1/4 ounce container of jb bore paste for like 3.99 at Brownells along with a bore mop and rod. So far my wildcat is shooting very accuratetly.
Did you mix the jb with kroil? I hear that's the proper and best way to use the jb.