I'm having a 9 twist 223 Stevens barrel reamed out to 22-250 and put on a Marlin XS7 action. Barnes recommends at least a 9 twist for the TSX and 8 twist for the TTSX. Anyone ever tried the TTSX in a 9 twist 22-250? I'm no more than a few hundred feet above sea level.

Also, has anyone experienced much difference in performance between the two? Enough to risk the expense of buying the TTSX and having them not stabilize? I've heard of some people having lack of expansion issues with the TSX and that the TTSX has pretty much solved this problem.

Those who must raise their voice to get their point across are generally not intelligent enough to do so in any other way.