shoulder angle

[g n brezinski]

saw a article on the old Drummond case from back in the 70s.they were using 60 degree shoulders on the weatherby cases.given this ,what are the + and the - for this design of a case and do you get a increase in velocity over a standard weatherby case.i think they will not feed through a magazine very well.
gary b

 

[alinwa]

saw a article on the old Drummond case from back in the 70s.they were using 60 degree shoulders on the weatherby cases.given this ,what are the + and the - for this design of a case and do you get a increase in velocity over a standard weatherby case.i think they will not feed through a magazine very well.
gary b

Pluses; you get a few grains more powder capacity while eliminating the stupid radius shoulder which doesn't size properly.

Minuses; they won't feed nearly as well and the 60 degree shoulder won't size properly either.

Of course belted mags won't size properly anyways so maybe it's all moot!

They shore look cool.

LOL

al