is there a barrier performance advantage in a .308 plastic tipped ttsx round over a regular non-tipped tsx round? i would have to guess that the plastic tip helps prevent the nose of the bullet from collapsing in on its self when first entering autoglass and similar barriers??? i ask because i came across the ssa loaded 168 grain ttsx load for a good price. ssa cliams that it is an “excellent barrier round”. not only that, but i recal seeing some 300blk ttsx rounds that did well through test barriers as well.
a ttsx doesn’t look so bad through barriers. not in 300blk anyway. does the same hold true for .308 ttsx loadings???
so the 308 ttsx CANNOT be expected to perform like the 300blk ttsx because the 300blk ttsx was specifically engineered for this type of barrier performance while the 308 ttsx was not?
No. The 110 gr TTSX BLK bullet loaded in a .308 may not give that performance. The 168 gr TTSX will act like it is supposed to; what TSX/TTSX is optimal all depends on expected target, distance to target, and launch velocity.
I think it is a matter of the two are totally different performance envelopes. I would expect the .308 version of the ttsx or tsx to perform at the top of the .308 (7.62x51) spectrum.
A 45 colt and a 45/70 use the same diameter bullets but are in totally different classes and so the design of the bullets are different from the start. This is similar in that the .300 blk version is designed for the velocities developed by the specific load.
