ruger mk 1 action barrel thread size ???

[bluecod1967]

i have a ruger mk1 270 question is would anyone know what size the thread is barrel to action any help appreciated.thinking to re barrel with a donor barrel cheers

[csmiffy]

i have a ruger mk1 270 question is would anyone know what size the thread is barrel to action any help appreciated.thinking to re barrel with a donor barrel cheers

Ive got I think the exact same barrel in the shed. If no-one gets back to you I can dig it out and check tomorrow.

[bluecod1967]

cheers

[systolic]

According to a diagram in Bolt Action Rifles Revised Edition 1984 by Frank de Haas, it is 16 V TPI. The length is .690", major diameter is .998"

[bluecod1967]

cheers thank you

[systolic]

cheers thank you

That's for a bolt action M77. Did you mean M77 Mk1 (as opposed to the later M77 MkII) or a Ruger Number 1 single shot?

[bluecod1967]

bolt action mk1 ruger 5 shot rifle cheers

[Kamel]

Just to be a little nit picky, just cause I want to be, there is no such thing as a Ruger Mk1 rifle, the MK1 is actually their first auto 22 pistol. The original Ruger rifles were Ruger M77s, the next is the Ruger M77 MkII. It is a common mistake made.