Quoted:
I may be remembering wrong, but thought I read that Hornady's 55 FMJ had a thicker jacket & didn't fragment.
Do you want to be shot with one?
Sunday I shot my little 16 inch AR with some M193 bullets I pulled, 55 grain Sierra FB hunting bullets, and 52 grain MK's. The 55 grain bullets were propelled with a light charge of 2230C gunpowder, the 52's my standard RE-15 load.
The M193's covered a target printed on a 8.5X11 inch target, although a "group" was formed near the aiming point that's maybe three inches in the dense part. The 55 grain Sierra's made a nice round 1.5 minute group, and the 52's made a group about 1 minute wide and 3/4 minute tall with two out left that I called.
I've never shot M193 type ammo that looked anything like accurate, whether handload or factory. The South African we used to buy shoots about as well as the Q3131's and handloads with LC bullets.