john,
Don't overlook the 100 gr. TSX in your load development. I use it over 72.0 gr. of RL22, Wby. cases, CCI Mag primers, for a chrono velocity of 3700 fps (actually 3705 avg. fps, but who's counting). In terms of accuracy, this load is far superior to any other bullet weight I have tried, in my Mk.V.
Bighorn I have overlooked them and they do sound appealing, A great bullet for the speeds acheived by a 257 weatherby.
