OK fellow antelope enthusiasts, help me build a rifle just for pronghorns. I have a couple of stipulations but after that pretty much anything goes. The stipulations are, it must use either a 700 Remington, M70 Winchester or Ruger #1 action, between .25 and .30 caliber (inclusive) and it must fit in a Pelican/Storm 3300 case (max length about 48"). Other than that I'm pretty much open, lets say a budget of $1000.00 for the parts not including a scope or mounts. I already have the actions listed and scopes/mounts. I will most likely do the work myself as time permits. I am currently working with a 7MM Remington Magnum and a 7MM Ultra Mag but am open to pretty much any standard or wildcat cartridge.
I'd go one of 2 ways: 1) Ruger #1 300 H&H 26" barrel. I think it would be classy rifle, in a classic cartridge, and evokes a bit of the Lander "One Shot" mental picture antelope deserve and don't always get. I'd put 200 grain Accubonds in it. 2) Model 70 hopefully this is a pre-64, but in this one go modern 7mm RUM. 180 or 195 Berger that will hopefully be available by the time you're ready to shoot.
I would go with a 264 win mag if you're wanting to keep the mag bolt face - if you're willing to swap bolts, I'd go 6.5-06 improved. 6.5 ballistic coefficient's are kind of tough to beat in windy antelope country and will help keep the energy up at extended range. I hope to get my new 264 broke in this September as long as I draw a tag.
I am really just starting down the long range path, I'm confident out to 500 yards or so right now but I would like to extend that out to at least 650 by this fall. Let's say for this rifle 800-1K max.
I would look at the best wind bucking bullets and calibers, to a point. I was hunting with my 257wby, which I would say a good goat gun, but I have to travel across state to hunt a limited time. And wind calls cost me 2 pushing Boone goats, 2 years in a row. Shoots in 6-800 range.So I took my elk rifle over and shot the #2 goat I saw,could not relocate the #1. Hopefully find him this year. The 7's I like Rem, RSAUM, STW