I havent done this and dont plan on it. Just curious? I looked on multiple sites and I hear all kinds of different answers. Anyone have some true proof to this?
In your first link, I can't find where it states it is OK to fire 5.56 Nato in a 223. Can you point that out?243winxb said:http://www.saami.org/specifications_and_information/publications/download/SAAMI_ITEM_211-Unsafe_Arms_and_Ammunition_Combinations.pdf Looks like SAAMI has revised there warning on 3/6/2012. Would seem to be OK to fire factory Nato 5.56 ammo in a rifle chambered for the 223 Rem. The higher pressure of the nato, may have been an issue in the past, maybe??? http://www.saami.org/specifications_and_information/index.cfm?page=CC