Nothing cheap to choose from nowadays. P.M.I.'s, Federal Ordnance, John Masen, Thermolds, these seem to be the favorites. Some with varied results seem to be Eagle, Ramline, Scherer and USA brands. The ones I've had the best results with have been Masens, Federal Ordnance, P.M.I.. Federal Ordnance and P.M.I.'s are the same magazine made on the same tooling. Federal sold out to P.M.I. Most of the info you seek can be found on old threads here.