I have 106 taps with the clear tips, the base to ogive on these 105s is a touch longer, and the oal is bout 60 thou shorter. Def a different bullet profile. 106tap has a long nose compared to these 105 mystery bullets.Thank you sir for being the Guinea pig. But now I’m even more interested in what they are lol. Are they the same as the 106 taps? Have you sectioned one? The mystery continues