Local purchase: Canadian Tire, 40-packs of Crosman Powerlet for about $30. (~$0.75@)
Don't skimp on quality. Some brands have inconsistent fills and cartridge lengths. Avoid JT, Brass Eagle Brand and anything unbranded.
Best if you want to order in bulk: Leland brand in tubs of 450. Leland supplies 12-gram powerlets to the US Military for the inflators on life vests so they are quite consistent.
Last edited by cjottawa; October 4th, 2009 at 19:55..