Thread shoulder

[il_cop]

Just got my Tikka 243 back from the smith... I had it cut to 17" and he threaded it 5/8-24, but the shoulder is .675

I told him I didn't know what the barrel diameter would be at 17 so if there's not enough shoulder, thread it 1/2-28. Something got lost in translation.

This is only .05 over the thread major. Not much of a shoulder.

Any remedy other than chopping another 1/2 inch and rethreading 1/2-28?

 

[il_cop]

This rifle will have an OG 6.5 on it, if that info is helpful

 

[Machingeaneer]

I'm guessing the relief cut at the shoulder would preclude you from extending the 5/8-24 threads to add on a shoulder but maybe someone with more machining experience can confirm that.

You're probably stuck chopping it again.

 

[Shortschaf]

Thread 'Does this barrel have enough shoulder for Suppressor?'

May 9, 2024

I am going to run a suppressor on my Tikka T3 Lite in 6.5CM with a 20 inch barrel. I got the barrel threaded by a local gunsmith in 5/8x24. He told me the shoulder would be smaller, but he wouldn’t have a problem running that thread size on my gun. Cool, the professional thinks 5/8x24 will work well.

I just got the gun back and thought “wow, that shoulder is tiny!”

I am no gunsmith, but this shoulder seems very small…would you be comfortable running these threads for a suppressor, or would you go back and get this done in 1/2x28?

My otter creek Hydrogen S got out of jail yesterday...

• Badger 5
• Replies: 23
• Forum: Firearms

I would want my suppressor in hand to check how it shoulders

I know I would prefer to have 1/2-28 over a 0.050" shoulder
ETA id still be tempted to try it with 0.050" shoulder vs spending another $100 to re thread

 

[ElPollo]

The whole thread shoulder thing with suppressors doesn’t seem to have a lot of data supporting it. Spin the suppressor on until it stops, pull the bolt and look down the bore. If suppressor looks straight, shoot it. If you have problems, then consider taking it back to a smith. If not, shoot more and be happy.

 

[il_cop]

The whole thread shoulder thing with suppressors doesn’t seem to have a lot of data supporting it. Spin the suppressor on until it stops, pull the bolt and look down the bore. If suppressor looks straight, shoot it. If you have problems, then consider taking it back to a smith. If not, shoot more and be happy.

I saw Form's post saying the same thing. He said "does it stop?"... Mine "yielded" but I could definitely keep going if I wanted. That was the deciding factor for me.

Just ran over to the smith. He thought we could recut to 1/2 28 without lopping of another half inch. We'll see.

 

[il_cop]

He's comping it because the desk dude that took the order told him I asked for 5/8 fwiw.