500 rounds of brass may seem excessive but it really isn't. I recently bought a Ruger #1 in 405 Winchester and have so far secured over 200 rounds of brass and while that will probably be plenty I subscribe to the notion of "It's better to have it and not need it than to need it and not have it. I'm also stocking up on 38-55 brass. 15 years ago I bought a beautiful Cooper Varmint Extreme in 25 WSSM. I bought 750 cases and am glad i did.