It occurred to me after a testing session yesterday, that you don't need a lot of space to practice your long range game. No matter what level your at, you can shoot groups at 50 yds and get a lot of feedback. Analyze your groups in terms of MOA. At 50, your goal should be to make the bullets go in the same hole. If your shooting 1" groups at 50, that equals an 8" group at 400 which can make it pretty hard to hit a 10" at 400.