So I've been checking online for 7.62x54r ammo for my mosin I'm bringing home in a few days, and was looking at surplus 440rd "sardine cans" but I understand alllll that stuff is corrosive. So I was just wondering where you guys get yours from? Online? Or does your local range stock em? Seems to be I can get one of those cans for around 80 bucks give or take 10 bucks. Big 5 stocks ammo on the shelves for 15 bucks for 20 rounds. Don't remember the brand name, but it was new factory ammo. Not surplus stuff. I'm not concerned about the corrosiveness, but just wondering if there is something I should stay away from or things I should lean towards. Thanks guys!