What is the rate of twist for this rifle? I know every rifle shoots bullets differently but does anybody have any recommendations for conical bullets for this rifle? I am planning to try and get a deer with it next season. Also, if it matters, I use Pyrodex RS. I have some 370 grain Maxi Balls and I believe 250 grain Maxi Hunters (I am not sure on the weight, I will check) but want to try something else other than those and the PRB.