What muzzle thread size is this? Sako A7

[Mikido]

1st gen Sako A7 in 300wsm. It is definitely not m15x1
Pitch looks very close to 1.0 mm

 

[BBob]

My bet it's 1/2-28. 12.81mm =.504" and a 1mm (.039") is close to a 28tpi (.0357").

 

[Mikido]

Yep, turned out to be 1/2x28