I've been using a Lowepro D-Pods 20 for the past few years while squirrel hunting.
It is actually a small neoprene camera case but performs exceedingly well as a .22LR ammo pouch.
It has a small kangaroo pouch in addition to the main pouch that is perfect for an extra 5 shot magazine.
Stiff belt loop has a firm Velcro closure so the pouch can be removed from a belt without having to unbuckle the belt to slide it off.
Has two cord loops so that the pouch can be worn from the neck.
video here:
https://www.amazon.com/gp/customer-...rp_d_rvw_img?ie=UTF8&ASIN=B0001HOWTW$7.00 bucks from Amazon.