bluestar reloading has a ton of brass but hurry they are going out of business.I have have had 6 375 wins l;ove them.I still have two of them.I have shot bullets from 200 grs to 300 grs.I like aa1680 powder best of all.The most accurate bullet was the 235 gr speer pointed soft point but you can only load one at a time or have it as your first shot as I do.These are awesome little guns.I hope I get another one !!Get a bullet mold for it .375 bullets have gotten very expensive and hard to find sometimes.Good shooting and have lots of fun with it.I mounted a scope on two of mine.