So the Sig Elite Performance OTM .223 Match 77 gr ended up being a win
:
Groups ranged from .66" to 1.09", 100 yards with 4X power scope. Reticle battery was dead- light sucked as usual and I had to guess where the center dot was relative to each square. Maybe could have cut the groups by ~30% to 40% if I had more powerful glass on the service rifle.
Brass looks good- can't tell who made it for Sig. Price was very decent too- $22 and some change per box at Gun Parlor, less than a buck different than Midway. They had stacks of it in stock, and at least what I bought was all the same lot. Bullets have a cannelure, but I don't think the case mouth was crimped. Burnt powder smelled different- not bad at all, but different. Anyway, these should be perfect out to 300 yards. Need to try some in my Modern Military poo-say upper next time I use it in a OCSA match.