According to SAAMI, the 416 Remington Magnum has a max pressure(PSI) of 65,000. Would someone know what the max in CUP would be.

Has anyone tried to load a 450gr Woodleigh bullet in a 416 Rem Mag?

I have shot half a dozen buffalo with the Woodleigh 450 gr. bullet in my 416 Rem..It is truly a killer bullet, expands to a big cross section and will make two holes on a broadside shot sometimes, if not will stop on the off side skin..I had pictures of them of them on AR at one time. I field tested those bullets in Africa for Woodleigh..The PP seem to penitrate a bit better than the RN, but either will do the trick...They give the 416 and the 375 a caliber up in killing effect IMO...

A 450 gr. Woodleigh RN, followed by a Northfork cup point would be bloody deadly on any buff...

I think it is about 53 or 54000 CUP.

Whatever it is it is like the 270, 300 Win etc