CCI doesn't really make "bulk" 22 unless you are talking about the ar tacticool stuff.
There is a lot of good info in this thread and some info is off. I want to clear up that most 22LR ammo velocity is overrated. Remington golden bullets which are high velocity are rated at 1280fps but in reality is lucky to break 1200fps.
CCI standard velocity is rated at 1070fps, CCI minimags and blazers are high velocity and there is a 36gr hollow point and a 40gr solid. The 36gr hp is rated at 1260fps and the 40gr solid is rated at 1235fps. CCI stingers are a 32gr hollow point and rated at 1650fps I believe and there is also the CCI velociters which are a 40gr hollow point rated at 1450fps I believe.
Stingers and velociters are hyper velocity and I don't mess with the hyper velocity stuff. The stingers actually have a longer shell casing with a shorter bullet to get extra gun powder and keep the overall length the same. I don't like that the casing actually seats into the chamber more so.
The grains of the bullets like 36gr vs 40gr is the weight of the bullet. A heavier bullets will obviously move a little slower but carries more energy upon impact and will typically penetrate deeper. a lighter bullet will move faster and have a flatter trajectory but wont carry as much energy on impact and wont penetrate as deep. Each has its own ups and downs and there is no perfect round and that is why they make so many different variations.
I personally only like standard and high velocity in a 36-40 grain. I also like subsonics for quiet shooting on occasions. I typically stay away from the hyper velocity stuff.
See http://www.midwayusa.com/product/23...-hollow-point-box-of-300?cm_vc=ProductFinding for bulk Mini-Mags.