Checked, I do have 140 grain 7mm E-tips. You can have 'em if you come to the SF bay area when you travel to the US, and the barnes you are looking at are the 140 grain 7mm TSX. Just a shot in the dark, I don;t know what TTSX you have over there.
Just an offer if you wanted to compare the E-tips to the barnes. I have the extras cause I tried both and like the Barnes better. Which is too bad because for me (usa internet price), the E-tips are much cheaper.
I guarantee you will not have an issue with TSA coming out of the USA. Yes they will stop you and you have to explain that "bullets" are not "ammunition". but they will let you into the secure area for sure.