I have a 30/404, but it is called a 30 HV and is from Dave Tooley. Not sure on all of the technical details(neck angle, case capacity) I dont load it too hot(want the cases to last as long as possible). Present load is WC872 94 gr. with a Sierra 240 match bullet. Another nice load is Sierra 200 gr with 95 gr H870. Not sure on velocity, but 200 gr load seems pretty quick. Hits the steel plate at 300 and 400 yards pretty quick.