I take my gear to an outdoor range with a bench,use a sand bag rest to render the rifle immovable taking care to never prop the rifle by the barrel (always under the fore end) ,a spotting scope to avoid the walk down range after I fire a group and bullseye targets with measured grids. Take your time. Always shoot the ammo you hunt with. Different makes and bullet weights and types always have different ballistics and points of impact,so,it's important to be consistent with your choice. Fire three-shot groups allowing the barrel to cool for 5 minutes between groups. That goes a long way to prevent "fliers". Once you've established your three-shot group within 1 MOA,it's possible to move the group around the target by using windage and elevation dials to "zero" your groups,either, right on the bullseye at that specific range (if desired) or by using ballistic charts to set your groups higher (or lower) depending on the type of terrain you'll be hunting. I have my scopes (Bushnell Trophy II 3-9X40) set at 1" high at 100M which puts it's zero holding dead on at 200M,then,adjust my aim point accordingly. That technique comes in really handy when shooting across swamps, down hydro corridors or in heavy brush.
