The ballistic performance of the newer VLD bullets in 7mm (.284) caliber is amazing. Ron Spomer did a BC comparison bewteen a .308 win, 6.5 Creed and .284 Winchester. The .284 blew the others away at longer ranges. Ron is not a long range hunting guy though and neither am I….just our choice is all. I guess what I am trying to say is that the 7mm caliber is a wise choice no matter which cartridge you choose. I don’t shoot enough to practice with anything other than the loads I am going to hunt with.
Having said that I still think the 145 gr. Barnes LRX could be a good performer on Pronghorn in the 7 PRC. I am going to experiment with the 139 LRX since the free bore in my .284 Win chamber is less than that of the 7 PRC. I am not recoil sensitive at all and I am a big dude at that. But if you are recoil sensitive, I would just get a brake to practice with and then cap the barrel when hunting. If you shoot a big bull, I seriously doubt you will notice the recoil.