My brother has one, not sure if it's an XTR...push feed FW in 7x57. He had some accuracy issues with factory ammo and asked me to take a look at it.
Added a pressure point as the stock had a mild warp, replaced the Leupy STD mount as I could slide a piece of paper under both sides of the front mount... don't think they were the correct mounts, used Weavers off my M70.
He wanted some warmer loads for moose, so I loaded up 5 different pills and charges, it did not like any TTSX, was ok with Speer 160 Slams and 175 Deepcurl, but really liked 150gr ABLR, printed those tight, well under 1".
So I give it to him with some ammo, he goes out and reports it's the best it's ever shot but it's 6" to the right. He shoots off a rest slung up...