RE: TXS bullets?
I have had the same experience with the new TSX's. However, the old XLC bullet will foul a barrel big time if the velocity is high enough. We were pushing a 150 XLC in .30 caliber to about 3730 fps in a 30-378 Wby. Even in a very smooth Hart barrel, copper fouling was terrible.
If Barnes would have introduced the shooting world to the TSX first off, they would likely have a much bigger market share of the bullet business than they do currently. A lot of folks got anti-Barnes over the fouling issue and have moved on to greener pastures.