Just FYI: I have this same model (Big 5 exclusive model) carbine/rifle: Model: Savage 64-TR.
The thread is 1/2 x 20. I took my muzzle break to the nuts and bolts shop and they measured it to a T.
Regards.
The thread is 1/2 x 20. I took my muzzle break to the nuts and bolts shop and they measured it to a T.
Regards.




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