Feel a bit like a fool... You see, a couple of days ago I looked 'under' the barrel of my AR15 thinking that is where any markings would be, but had found nothing, so I asked. I looked again just a minute ago, and sure enough - it has clearly stamped: "CMP .223 NATO 1/7 HBAR".
I apologize for taking your time.
Now I need to get some 62-gr ammo (surplus) for the AR and for the SL8. I have lots of 55-gr, but only the HK93 to shoot it.
Also, since I already reload .308, 30-06 and .45 ACP; I guess it's time to get some .223 dies and 69-gr or 75-gr ammo and start reloading them to see how well the rifles can really do.
Thanks to all!!!
Alex