Keswick has 22lr, Newmarket has a range of the common north american standard 223, 270, 308, etc... Limited stock and hit and miss, I mean you buy milk, bread, tires, lighbulbs, medication and ammunition all in one store, go to a specialty store unless you expect hit and miss at walmart on this stuff. Also expect the staff to know nothing about what they are doing when taking ammunition out from the locked cabinet.
Buy ammo elsewhere in general