Funny you should ask that question, cause the guy I was talking to was a real gun crank, called around for load data and got this from Sierra; Case Capacity/Water weight is exactly what the 257 Roy is, so work up data accordingly...speed/ bullet weight ratio is also so close it doesn't matter...so it would appear if you want a short wildcat.the 25 WSM might work for you...if you are more a traditionalist...the Roy...
Ingwe
