When you say long range you must mean really LONG RANGE if you are considering a 338 magnum. Unless you plan on shooting for targets at 1000+ yards (with a dedicated spotter helping out) you don't need a Lapua for target practice. I fired about 10 rounds off an AMPTech DSR1 and it was fun and all, but rounds are about 3 dollars a piece for the cheap shit and almost $10 per round for hunting quality. You are better off getting a more traditional rifle for practice unless money is no object. What is your price range and experience level with rifles currently?