Dave,
I had the exact same rifle(sold it, like an idiot
) but it would shoot a handload of the 140TSX with RL22 and Fed215M primers- bugholes at 100 yards for 3 shots IF I let the barrel cool well between shots.
It did almost as well with factory 140gr? ballistic tips.
On the other hand, it absolutely would not shoot partitions(150gr) no matter what powder I tried.
Have fun, I think once you get it shooting how you want, you will be glad you have it.