I got lucky. My 416 Rigby puts 3 of every bullet I've tried into an inch at 100 yards. Best group was a .56" with a 335gr cast LBT. Scope is a 1.5x4.5 Nikon.
Play around, most of the Tropicals I know of shoot very well.

"Life's too short to hunt with an ugly gun."
U.S. Coast Guard, retired