There is a slight difference in the 2 chambersand I think the 5.6 has a longer leade then the 223. When you pick it up please ask them about it.shadyhollownj":2p6htb6m said:I'm picking up a bushmaster this weekend that is chambered 223 and 556 but I'm certainly not an expert.
That's what I had thought but I haven;t messed with either of them in 20 years so wasn;t sure.Calman":3j1fvz4j said:The 5.56 Nato has a longer throat and is loaded for higher pressure than the 223.
Cal
Calman":fwhmzazz said:The 5.56 Nato has a longer throat and is loaded for higher pressure than the 223.
Cal