Here's one I banged out of the shop the other day.
Stiller predator
27" #5 Benchmark 8 twist in 28 Nosler throated for 195 EOL Bergers
Macmillan Gamescout carbon ambush
Hs bottom metal
First couple of groups out of it went in the .3s and .4s it's not my gun but I will update on the velocities and groups when he passes the info on to me.
Apparently their rimfire barrels are second to none, although I have no firsthand experience with them. Their 8twist 3 groove 6mms are unfuckingbelievable. They make a very good, consistent, barrel that are not prone to fouling.