Howa Barrel Breech Dimensions

[spfld]

Hi,
I tried this same question on the general discussion and had no replies so thought I would try it over here. Can someone direct me to a source for the dimensions of the breech face of Howa barrels? I suspect it has a similar counterbore as the Remington breech face but I need the depth & diameter for the Howa. All I have is an action and no original barrel to get dimensions from. This is a short action with .308 bolt face.
Thanks for any info!

 

[Peter]

Hi,
I tried this same question on the general discussion and had no replies so thought I would try it over here. Can someone direct me to a source for the dimensions of the breech face of Howa barrels? I suspect it has a similar counterbore as the Remington breech face but I need the depth & diameter for the Howa. All I have is an action and no original barrel to get dimensions from. This is a short action with .308 bolt face.
Thanks for any info!

25.87mm x 1.55 thread pitch , .717-.719 long...1.018 dia. the factory gives the extractor a pretty generous clearance. bolt nose has been .148 deep x .725 dia pretty consistently.