It really depends on the volume I'm shooting that month, and how much extra money I have to spend.
Usually the only ammo I'm stocked deep with is .22lr, used to be I never had less than 5 or 6 bricks laying around, but lately I've been burning thru my .22lr like crazy and haven't quite restocked yet. I think I have about a brick and a half left.
I think I have about 500 or so some odd rounds of xm193 from the last case I bought. I'm crossing my fingers that prices will drop below $400 a case before I restock.
.308... well I burned thru all of mine. I think I only have a random box somewhere. Its just getting too pricey to shoot in volume. Makes me sad...
My .30/30 I have about 5 or 6 boxes of hunting ammo laying around. This isn't so much a high volume shooter as it is a practical meat getter.
Sad to say I burned thru all my .45acp in the last few months. I did my first ipsc shoot, brought my uncle to the shooting range while he was visitng, and then brought a friend to the range for the first time. I think I burned thru close to 500 rounds. All I have left is 3 magazines of my defensive ammo, and I box of 230grain fmj. Good news is my XDM is holding up like a champ. Looking back at ammo prices though, I shoulda bought a damn 9mm...
I don't stock too much buckshot or slugs. I think I have about 100 or so rounds of buckshot, and maybe 3 boxes of slugs. I just don't shoot that stuff thru it ever. I do buy 7 1/2 birdshot for trap shooting by the case though. I think I have 6 boxes left from the last case. I'll usually only shoot 3 or 4 or so matches on a sunday.
Yea, I'd like more, I think I gotta focus and look for a good deal on bulk .45acp.