they primarily make the high volume stuff however
223/5.56,9mm,40,45,38spl,357mag,300blk,308,30-06,30-30 , 7.62x39
This list right here.
You can add to that 12 gauge, 20 gauge and .22 LR. If your firearms are one of these you can almost always find ammo somewhere, loading components and brass.
Everything on this list except for 5.56 is a good candidate for cast bullets also. Maybe 5.56 too. Wolfkid says he is getting good accuracy out of his cast 5.56 fluorescent painted bullets. Seems like a lot of trouble when you can buy 55 grn. bullets bulk for 8 cents a piece but then you gotta love an experimenter.
really focus on 223/5.56 your primary pistol round for me that is 9mm, one hunting round for me 308 , 12ga or whatever your go to shotgun is and 22lr or what ever rimfire you use is
the basic 5 gun plan
for some it will be only 3 or 4
best if you can keep your loads the same so you don't have some 150s , some 155 , some 165 some 175 and some 180 find what your rifle likes and what works for you and stock up on it.
when I was 14 the first 2 guns I bought were a 12ga and a 30-06 people used to say all a WI hunter needed was a 12 ,22lr and a 30-06.
I remember the guy at the archery shop we frequented he hunted gun also but he was into oddball hunting calibers , I didn't get it he was just one of those people who had to be different , I wanted to be able to walk into any hardware store buy a box of my 150gr Super-x 30-06 ammo and go shoot or hunt.
I started buying a box of ammo with every pay check but stopped when the price went from 7 to 11 dollars a box it seemed like a lot at the time it wasn't long and 11 was a heck of a good price , I should have kept buying , I think I do still have 2 boxes of that stuff left.