416 Rigby, CZ550,Fed 215 primer, 380 GR North Fork, 105 gr of 4831 sc,Has any body chronafgraphed this or a similar load?

I gave you some info. in the Gunsmith Forum ..where you first posted the request

You may want to ask the Moderator to move that post to here..

Thanks jjs. I thought I posted it her and it somehow did not go through> Thanks for the help.

You did not ask but I crimped with a Lee Factory Crimp die, OAL was 3.535".

p.s. 1 grain more of H4831sc would put you at a nominal 2590fps, 40F temps..+1 degree temp. change may increase velocity by 1/2 fps. 370grain Cup Points, same components as listed in other Forum..

I suggest you work up loads carefully, start lower and work up...102grains should be a good starting point.