
All are 5.56.
From top to bottom:
Top two are my girls guns. PSA I think

3rd and 4th, don't remember either, LOL. The fourth one down is a RGUNS upper
5th one is a Bushmaster
6th PSA (pretty much a loaner gun if someone needs one, at least that accounts for 90% of the rounds so far)
7th Colt
8th Kit gun built up as a match gun prolly close to 20 yrs ago
9th SIG
I have slings for most of them. I like ARs.