Well I finally decided on and purchased a new fowler from TVM. Really like it a lot! It has a Colerain 58 cal barrel but when I tried to load it with a .570 RB and a .010 patch I couldn't get it down the bore. I called Colerain and they let me know that the bore was .577 !! I know all guns are different but my question to all the knowledgeable members is in their experience is a smaller ball and thicker patch more accurate or a larger ball and thinner patch better ?? Thanks for y