Thread: Gun city quality firearms…. Yea na

Originally Posted by Ross Nolan

14x1 male thread has a allowable outside diameter of 13.862-13.974mm
15x1 female thread has a allowable inside diameter of 13.917-14.153mm

A 14x1 male thread at the high end of the range attached to a small end of the range 15x1 will absolutely feel tight - at least until the .06mm lets go.

I've had both good and very bad experiences in GC, so no interest in this other than putting the facts out there.

Good to see a machiness tool maker on here.I just rely on gun smith,if it don't work I take it back.Havnt had to do that yet in the last 20yrs.Had no problems with GC in the last 20yrs either.

Originally Posted by Trout

Good to see a machiness tool maker on here.I just rely on gun smith,if it don't work I take it back.Havnt had to do that yet in the last 20yrs.Had no problems with GC in the last 20yrs either.

Just a grumpy fitter and turner, but I do know how to read Machinerys Handbook.



It's what the internet used to look like.

Originally Posted by Ross Nolan

Just a grumpy fitter and turner, but I do know how to read Machinerys Handbook.

Attachment 267795

It's what the internet used to look like.

I looked that up too, as I said I was surprised to see 15x1 on rifles (but then thinking about it why am I surprised haha - it seems like a good way for a manufacturer to try to ring fence buyers into their own gear sales stream a bit like Ruger mounts or Weatherby ammo back in the day).

One thing I do tend to do after having an issue in the past with a slightly undercut thread on a rifle barrel is I give the can a wiggle before it's tight and screwed home. This will show you instantly if it's the right can, as noted not all cans and not many rifles have the thread specs on them and this is something that I feel is a bit of a trap. Especially the cans as it is bloody hard to measure an overbarrel can's thread! Certain metric and imperial threads can cross over as well, and this can be dangerous as they can screw up out of alignment and not fly off under pressure which can result in strikes and worse damage. I feel the shooter with this one got away with it and was quite lucky in reality that there wasn't any damage and it actually parted company at the first opportunity and didn't hang around and develop a worse problem over time.