Core15 chamber???

[No_Use_]

Can't seem to find the answer...

They say .223/5.56 so is .223 is the one to use (safer)?

Also can't find the barrel I have... no mark on it, the website say the twist is 1:7, the catalog I have at home say 1:9 for the same rifle (M4 MOE DI).

Someone have the answer for me???

 

[pbr streetgang]

both 223 and 556 are good to go.

 

[Phat Eagle]

Weird... My CORE is stamped 1/7 on the barrel, but it is the base model. Not sure if the MOE is different... Email GTO!

 

[No_Use_]

Had my reply from Core... chambers on all AR barrels are 5.56

MOE M4 have 1:7 twist but if you have no stamp on the barrel (like mine) it's an early version so it's 1:9