Well, searching online paid off substantially(I believe). I just purchased 1690 rds of 470 NE and 1,500 Rds of 500 NE from a company called 406 Ammunition out of Montana. The ammunition I was told comes from a company they either merged with/bought out from 2016 called Proloading, who was also out of Montana.
They didn’t have Velocity data on the loads but the information I have on the ammo is that it is all Jamison Brass, and that is professional loaded factory ammo that is 100% in safe shooting specs. The round totals from each caliber are about a 50-50 split on Softs and Solids. The softs are Woodleighs and the solids are Barnes Flat Nose solids.
One oddity on the ammunition is that the 470 NE is loaded with 500 grn softs and 500 grn solids, which seems to be the normal loading, HOWEVER, the 500 NE is loaded with 570 grn Barnes flat nose solids BUT also 450 grn woodleigh softs. I tried searching online and couldn’t even find a drop of information on 500 NE being loaded with 450 grn bullets so I am unsure on why it was loaded with these unless it was for some weird custom order that got cancelled or such. Anyone have an idea or have ever shot or seen 500 NE loads with 450 grn bullets?
Also, what is the opinion on the quality of Jamison brass to reload in the future?