The old XLC worked, and they could be pushed fast. When the TSX came out, we ended up using a lot of XLC data for them. They seemed to get identical speeds and pressure . The original X? Great IF you could find a load your rifle shot well, and you bought a bottle of CR-10 with them, ha. After "fighting" them for years, the XBT was a relief ( again, less bearing surface) and the XLC was sweet! But the TSX ( and later TTSX) all seem to respond well to being crimped ( preferably via FCD) in all my loads. Now, I have no idea how this may affect LR ( past 400yds) accuracy, but up to there, perfect.
The old FailSafe was a good one too, a bit tough in my experience on lighter game, but on heavy muscle/thick hides, sweet! I still find this true ( for me) with monos on lighter game, I will try to take out some bone.
