I don't reload at this time, mostly because the only non-rimfire I own at present is 7.62 x 39 so ammo is cheap and plentyful, but recently I've taken up an interest in examining various casings I pick up here and there on the floor at the range. If I <was> to eventually purchase a rifle of a cliber that is worthy to get setup to reload, what should I look for to spot the "good" casings from the bad ones ? I already know about the boxer vs berdan primers (shine a bore light done there, one hole=two holes=bad), and to stay away from steel cases. But thru browsing this forum I keep on seeing references of brass stretching, brass flow, primer flattening, overpressure signs etc... But I must admit that an empty casing for me looks like, well, an empty casing. Is there such a thing as an illustrated guide out there on like that would show pictures of "good" vs "bad" brass ?