Gunsmithing Need opinions from a gunsmiths point of view on threading a Button Rifle Barrel!!! Help

[Matt_3479]

Im about to purchase a barrel for my first official full custom build and i was going to go with a Bartlein Barrel. Because i cant find any in stock i was going to go with a Krieger or Benchmark Barrel. Now the gentleman carrying Benchmark barrels is offering me a great deal, and is a super great guy to deal with and a gunsmith told me that;

"button rifled barrels are subject to residual stress and that when threading for a muzzle brake its best to minimize the amount of material removed and its better to go with a 3/4-28 vs 5/8-24 thread pattern. That by machining the exterior the bore of the barrel may enlarge. Which in turn can cause a very slight bell mouth when installing a brake hurting accuracy"

Anyone heard of this before?

 

[Jrb572]

Not sure what your looking for from bartlein But this guy has a few.

BARTLEIN

 

[stenger]

It can happen I have seen it a couple times.

 

[Straight Shooter]

A Bartlein or Krieger is worth the wait.

 

[agbm]

Here you go.

Grizzly.com

 

[bigngreen]

It doesn't really matter to me if it's cut or buttoned I put the largest thread on I can, not only to keep from the possibility of the bore moving but why do more cutting than you need to!!

 

[buffybuster]

.30cal or less, I go with 5/8"-24thd. 1/2"-28thd only for 5.56AR's as that is the standard.

 

[Matt_3479]

.30cal or less, I go with 5/8"-24thd. 1/2"-28thd only for 5.56AR's as that is the standard.

So where does the 3/4-28 thread sit in that mix?

 

[Red_SC]

I had a Broughton button rifled barrel on a .308 that was threaded 5/8x24. Threading it certainly didn't hurt accuracy on it.

 

[finefire]

Find a new gunsmith.