5.56 Bulk Ammo for Iron Sight 16” AR?

I have been buying match ammunition for so long I have lost touch with lesser offerings.

For my 16” AR with iron sights (A2 style upper), what is a good bulk ammo choice

Any advice would be appreciated.

Thank you.

-Stan
The mechanical precision of the system does not change with the sighting system.

What are your precision expectations for the rifle?

Mag dumping into trash at 7 yards?

NRA Highpower?

Somewhere in between?
 
Ok, so a 4 moa target. Pretty much anything (other than m855) will shoot better than that out of a reasonably good barrel. I’d probably pick up a couple flavors of m193 and see what I liked best. Which ever wins, stack deep.
 
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