The .257 JDJ, 6.5 JDJ, .309 JDJ, .30-30 AI are all outstanding choices. I consider the factory 7/30 Waters inferior to those 4, but it will work also, as will the .30-30, but the old warrior is on the edge of acceptable power from a handgun @ the longest distances. I use all of them but the Waters regularly. My pick of the litter for whitetails, pronghorn and such is the .257JDJ.