I got this bullet,with gm-Jacket, but still magnetic from about 10mm from top to bullet base.
The bulletbase is closed by a brass disc or foil, hold heavily by the jacket folded over it. It almost looked like a primer in a cartridge, but isn´t.
It has the usual crimping groove, but above that, it has 4 fine tiny knurls visible.
No tip color visible (i do not knew, if there was color one or not)
The weight is in the normal range of 710grs (exact 710,2grains) = 46,01Grams
So, what type of bullet is it??
Pic from base and sideview here: