Gunsmithing AR-30 breech diameter

[padd54]

I am a noob that is looking for help.
I have been told that I need to know the breech diameter to ensure I get the correct size barrel.

I am hoping someone here can tell me the breech diameter on the AR-30lm.

Thanks,
Ray

 

[BKS]

Re: AR-30 breech diameter

PM A10XRIFLE. He rebarreled mine

 

[Dans40X]

Re: AR-30 breech diameter

Measure the barrel diameter,fwd of the receiver.

 

[padd54]

Re: AR-30 breech diameter

Thanks for the reply's, I got the info I needed from A10XRIFLE.