First 500 rounds through the club AR-15
The club bought a 16-inch AR-15 for the rifle intro class. Before it goes into the rental rack, three of us put 500 rounds through it over two Saturdays.
Which ammo it takes
The barrel is marked 5.56 NATO. A chamber marked 5.56 NATO is made for both of these cartridges:
A rifle marked .223 Rem only should get .223 Rem only. Always go by the markings on the barrel and the maker’s manual, not by what a box or a store listing says fits.
The log
| Firearm | Ammo | Rounds | Malfunctions | Notes |
|---|---|---|---|---|
| Club AR-15 (16 in) | PMC X-TAC 5.56 NATO 55gr FMJ | 200 | 0 | Zeroed at 50 yd, then 100 yd groups |
| Club AR-15 (16 in) | Federal American Eagle .223 Rem 55gr FMJ | 180 | 0 | |
| Club AR-15 (16 in) | Winchester USA .223 Rem 55gr FMJ | 120 | 1 | Failure to feed with an old aluminum magazine; did not repeat with other magazines |
| Total | 500 | 1 | ||
The one stoppage came from an old aluminum magazine with a worn follower. We retired it. The rifle is now in the rental rack, and its rounds count toward the round counts page.