I’d bet there’re Noslers. I’ve got piles of Partitions, Accubonds and Ballistic Tips with the crimp groove in them. Chances are they were made for an ammo manufacture, likely their own stuff and those that you have are 2nds or blems from that run.
I’ve got red and orange tipped Accubonds, Grey tipped Ballistic Tips and all kinds of stuff from over the years.
I wouldn’t be worried myself.
