Anything inside 200 yards and sometimes 300 (depending on wind), I shoot 55gr. Past 300, I'm shooting 77gr Sierra TMK reloads. Before I started to reload rifle, I was shooting Hornady 75gr Steel Match but the HSM is not being manufactured anymore. Hornady has the black and frontier line in 75gr which are reasonably priced. With the ammo shortage, you'll have to zero more often with different ammo.
My JP 18" medium contour barrel liked the 75gr rounds. I've moved away from the JP barrel and starting shooting a 14.5" rifle for 2/3 gun.