I had a .32 CVA many moons ago and now have the CVA .36 squirrel rifle and, if I'm not mistaken, the were both 1:48. Both very accurate and reliable. I've only ever shot patched round balls in all my guns so can't comment on other bullets, but the PRB's have done a fine job in these smaller caliber rifles. Let us know how it turns out. The little CVA rifles are alotta fun.