for .303brit it cost's me .40c each to reload but brass is free because there are pile's of it at every range i have ever been to... compair that to about $1.17per round of winchester gray box... shooting 50-100rnd's a month let's you recoupe your loading equipment cost's in very short order and you always have the best shooting ammo available for your rifle, when you have the ability to shoot more you will and time behind the trigger is never a bad thing..
something i think alot of people overlook is the ability to step load's up/down for hunting, i can load 150gr or lighter bullet's that group under 3" at 100m and do minimal damage to deer, yote, sheep or i can go 180gr or heavier for elk, bear, moose etc, there are about 6-8 page's of .308 and another 6-8 page's on 30-06 load's 3 page's of .303 load's etc etc etc in the lee manual alone so it's not hard to tailor a load to a certain rifle but also the game you intend on filling the freezer with...
own any hard to find caliber's? i have a 38-55 that's next to impossible to get shell's for here but i can make as many as i want now that i can load my own...
even if you only punch paper chances are your group's will get smaller and you wont be handing over quite as much of your hard earned dollar to feed the pig....