As Tictacticaltimmy said, get a rimfire for starters, and I’ll add- get out there and shoot MARS, PRS, or NRL22 to really learn how to drive the gun under a wide array of positions. That humble .22LR will teach you loads about the little tweaks that vastly affect your impacts at 300-400yds. It’s not just about trigger control and follow through, it’s about not twisting the frikken gun, not rushing the shot. You don’t have to rebuild your grip position every shot, but you do have to ensure that the minute forces that shifted through the last shot don’t cause you to decide to apply incorrect pressure to the gun rather than reinforcing that natural point of aim. We live in a time of unprecedented rimfire accuracy, particularly in factory autoloaders. Grab a Bergara, Kidd, Volquartsen, or some other 10/22 clone with a decent barrel and a case of good ammo and get to shooting.
Grab a Kriss, JP, or one of the other reliable and accurate AR rimfire conversions out there or build your own and become one with the same ergonomics of your chosen centerfire.
Grab a Kriss, JP, or one of the other reliable and accurate AR rimfire conversions out there or build your own and become one with the same ergonomics of your chosen centerfire.