If you can't shoot indoors, dry-fire at deer photos. Despite what older hunters say, any modern bolt-action rifle can be safely clicked on an empty chamber. (Make sure the chamber and magazine are empty. Open the action and run your little finger inside the chamber, as sometimes a round won't eject.) If you hunt with another action type, contact the manufacturer to determine if it can be dry-fired without damage-or if the rifle's a common caliber, buy a snap cap at a local sporting-goods store. Aim the rifle as you would in the woods, and pull the trigger, watching where the crosshairs point as the gun goes click. Scopes of 3X or less are necessary to be able to focus on a deer photo across the room.