I use a Browning A-Bolt in .300 Win Mag with a BOSS brake/harmonics controller.
Currently I'm using an older 3 - 12 Burris Black Diamond (30mm tube W/mil dot reticle and MOA adjustments).
BUT... I have a new 3.5 - 21 X50 Bushnell ERS with an H59 reticle and Zero Lok turrets. Everything is mil-mil. This is for my .300 Win mag HS Precision competition rifle.
I'm really tempted to mount the ERS on my Browning for hunting season. Actually the weight is almost the same but the ERS is a better scope with better glass and that great reticle. But changing back and forth is a PITA.
BTW, my rangefinding is done with new Bushnell 1 Mile ARC 10 X 42 binoculars with angle and ballistic compensation.