tungsten cored ballistic tip? anyone used any of these?

I haven't personally.

I wish Barnes would've put the polymer tip on the TSX and skipped the whole tungsten insert.

From what barnes has released, they said they tried the polymer tip on the TSX, but that increased the length of an already long design too far. For simplicity sake, the polymer tip TSX would have been nice, but when shooters saw how much powder space it ate up or that some calibers probably wouldn't stabilze them they wouldn't have been hugely popular I hypothesize. I haven't heard any bad reports about them yet expect that they are expensive. As far as expense goes, in a hunting bullet, I could really care less. I am hoping that Barnes will finally start getting more variation of this bullet out the door so I can try them.

on 24 he camp fire.... ASK THE GUN WRITERS...MRX BULLET DIAM one of the posters , posted some pictures of some recovered 180 gn mrx proj, dug out of dirt....going by the pictures the tungsten core seems to be working a lot!!! i dont know if you would want to hit real heavey bone, there have been reports that the tungsten core seperates fron the rest of the bullet in heavey bone
regards daniel

The core is heavier, so it keeps length down....

They are gawdawful expensive, $30 plus shipping for 20 (TWENTY) of them in the current Cabelas catalog. I expect that we will find that they are much more bullet than most of us need, with rare exception. As I typically use 200-300 bullets to get comfortable with a new hunting bullet in a given caliber, the pricing takes the fun out of that.
Makes the A-Frame look like a real bargain!

i was thinking about loading some for block buster home defense. tungsten is some hard hard hard stuff