.50 BMG Bullet Identification


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:

The ID cannelures are of British flavor. The magnetic signature is typical for most .50 caliber projectiles as the .50 is rarely lead core, like the smaller caliber projectiles. So the magnetic signature just means there’s a typical steel core inside. Could be mild steel, could be hardened steel. The base closure indicates a tracer variant. Probably a variant of an APIT, but could, technically, be an APT. Generally the plain tracer variants (on the other hand) are copper jacketed/no steel or gilding metal clad steel jackets, so would be no magnetic attraction or full magnetic attraction, nose to tail. But these observations are just general, if it is British, someone from the UK would have to comment on more specifics.

This has all the hallmarks of a Kynoch G Mk 6z Tracer, with the four fine knurls, GM jacket, mild steel core, boat tail, and foil tracer seal. Dim trace to 80 yards, bright to 2,000 yards (Image & ref; Labbett & Brown 1991). Regards, Pete.