I have a friend who’s building a 300 PRC so he can shoot elk 1000 yards.
He is an archery guy but wants a Long range gun. I tried to tell him to start off small like 6.5CM to hone his shooting skills for fraction of the price. It fell on deaf ears.
start out with a .223
This. A fast-twist 223 is an ideal setup to learn to shoot both long and short. Perfect for learning trajectory, wind reading, etc. Low recoil, low priced ammo.