Wyoming Hunter, catskinner, Chris338378, + 1, if it were me, and I'm thinking out loud of what if I happen to need something a little more precise down the road for longer ranges I'd opt for a scope in the 3 to 4.5 X on the lower end and 16 X on the upper end for any all around scope, PLUS it would be CDS or Kenton Dial adaptable. You can always use the duplex for most of your hunting to MPBR and still have the CDS or Kenton already set-up ready to go for that off chance of some monster a little farther than your MPBR or future hunts. Why would I choose the CDS or Kenton dials they are fast to dial up more so than clicking up for people that don't click up elevation all the time. Rangfinders are an absolute must have at least from my thinking. Quality Bino's and Spotting Scope in that order. Antelope are hard to judge for me especially when you are getting up in book horn size, more variables when looking at really big antelope when horn length is in the 16 plus range, could be a skinny 16. Range finders I have an old Leica but my son has the newer Vortex and I kind of like his better than my mine, but to be honest I haven't looked at current Leica R/F's to make any thumbs up or down. Suffice to say range finders are a must especially in wide open areas where there just isn't any references to distances. Like I've been saying in a couple previous posts in open areas and especially out west where we live in AZ, 500 yds is becoming the new normal just a few weeks ago friends took 2 cow elk at 600 yds using 6.5 Creedmoor with Hdy 143 eldx, my friends and I were just talking about that just prior and we were thinking 600 yds was about as far as we would want to shoot an elk with the creedmoor about 600 yds and not because of the distance but rather horse power at that distance on this large of game animal.