I know this is a CZ forum but... If a person is absolutely serious about shooting 22lr at long distances out to 400 yards and has the $$$, that person ought to take a look at the Vudoo lineup. Not for the faint of heart money-wise, but is like no other 22lr trainer except maybe something based on the Rim-X action. You would also be looking at a 34mm diam. scope, at least something like an Athlon Ares ETR 4.5-30x56 with a 25-35 moa rail.