I've tried them in my 300 RUM and could not get them to group very well. Just a single grain difference between loads and they were everywhere. Had better luck with the Nosler accubonds.
Barnes recommends setting the oal back about .050 off the lands. some rifles just wont shoot them. But, this may help.
I have found the same to be true of Swift Scirocco's.
I probally shot 3 boxes of them and tried several combonations and still couldn't get them to group like the Ballestic Tips do in my rifle. The "X" bullet shot better than the TSX, still not as good as the BT's.