I have played Paintball before, ad yes,..been hit PLENTY of times. And, when out of Ammo,...have taken the opportunity to drive a bit out of the way to find refills and equipment.
Jamie's Paintball Supplies has a great selection of paintballs in multiple colors and brands, as well as tanks, masks, hoppers, loaders, plugs, etc.
Mind you,..it might seem a bit costly, but it's better than paying for them online!! (TRUST ME!!!!)
But,...if you want a good selection and even be able to order some things,...try Jamie's paintball Supplies. It is worth the little drive!!!!