I have a 7mag on a Bighorn SR3, Carbon Barrel, McMillan Game Warden, HS Precision BM, TT Special. Ran a uni-throater through it to extend the oal. 190 Bergers at just shy of 3.6" and 2835 FPS. 7mm just doesn't do it for me...If interested, PM me and I can send pics...anyone else for that matter.
Would need cash on your end though.
GLWS. Been wanting one of these for a while, but can't justify another rifle without losing something in the safe.