New Posts New Posts RSS Feed - Criterion 6.5 creedmoor barrel issues
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Check GunBroker.com for SWFA's No Reserve and No Minimum bid firearm auctions.

Criterion 6.5 creedmoor barrel issues

 Post Reply Post Reply   Topic Search Topic Search  Topic Options Topic Options Page  < 12
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/08/2017 at 16:04
SEMO Shooter View Drop Down
Optics Apprentice
Optics Apprentice
Avatar

Joined: January/06/2013
Location: SE Missouri
Status: Offline
Points: 152
Interesting videos.  I have seen some barrels with pretty poor muzzle threads.  I know some gunsmiths that need to watch them and learn more about proper threading for suppressors.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/08/2017 at 16:21
Kickboxer View Drop Down
MODERATOR
MODERATOR
Avatar
Moderator

Joined: February/13/2008
Status: Offline
Points: 19103
Originally posted by supertool73 supertool73 wrote:

Well Criterion said they would shorten and re-crown the threads.  Overall they have been very easy to work with, their CS has been very good. 
Obviously, it would have been better had the "fit" been perfect at purchase.  However, the response makes up for a lot.  I was about to purchase a Shilen barrel, but Criterion is now a "contender".  I like people and organizations that take responsibility‚Ķ appears they meet the criteria.  
I like posts like this...
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/08/2017 at 16:29
Rancid Coolaid View Drop Down
Optics Jedi Master
Optics Jedi Master
Avatar

Joined: January/19/2005
Location: United States
Status: Offline
Points: 8183
I'm spoiled, my smith's work is pure artistry. His threads are beautifully precise, no burrs anywhere, and everything chamfered where it should be, squared where it shouldn't.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/08/2017 at 16:52
Kickboxer View Drop Down
MODERATOR
MODERATOR
Avatar
Moderator

Joined: February/13/2008
Status: Offline
Points: 19103
Originally posted by Rancid Coolaid Rancid Coolaid wrote:

I'm spoiled, my smith's work is pure artistry. His threads are beautifully precise, no burrs anywhere, and everything chamfered where it should be, squared where it shouldn't.


Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/08/2017 at 17:26
supertool73 View Drop Down
Optics God
Optics God
Avatar
Superstool

Joined: January/03/2008
Location: Utah
Status: Offline
Points: 10196
Now I just hope it shoots well.  I have read good things about Criterions shooting well.  They are button rifled, hand lapped.  So as long as the chamber is good, they ought too.  We will see I guess. 
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/08/2017 at 17:26
supertool73 View Drop Down
Optics God
Optics God
Avatar
Superstool

Joined: January/03/2008
Location: Utah
Status: Offline
Points: 10196
Originally posted by Rancid Coolaid Rancid Coolaid wrote:

I'm spoiled, my smith's work is pure artistry. His threads are beautifully precise, no burrs anywhere, and everything chamfered where it should be, squared where it shouldn't.


Who is he?  Does he have a website?
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/08/2017 at 19:18
Rancid Coolaid View Drop Down
Optics Jedi Master
Optics Jedi Master
Avatar

Joined: January/19/2005
Location: United States
Status: Offline
Points: 8183
http://rprifles.com/default.aspx/MenuItemID/138/MenuGroup/RobertsPrecisionRifles+Menu.htm

The lefty on the right is my 40X, he rebarrelled it. It is artwork.

It shoots dimegroups, when I do my part.

His work is exceptional.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/09/2017 at 10:40
Rancid Coolaid View Drop Down
Optics Jedi Master
Optics Jedi Master
Avatar

Joined: January/19/2005
Location: United States
Status: Offline
Points: 8183
After all on my blathering yesterday, I get my new 6.5 and screw in the can and I'll be damned if the thing doesn't wobble a little almost all the way to the shoulder.

Proving that karma is real!
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/09/2017 at 11:09
supertool73 View Drop Down
Optics God
Optics God
Avatar
Superstool

Joined: January/03/2008
Location: Utah
Status: Offline
Points: 10196
haha.  I wonder if it is as Ted said that many (especially mass production barrels, which most of mine are) use a class 2 thread and your precision smith uses class 3.  So many of yours fit tighter.   
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/09/2017 at 11:14
koshkin View Drop Down
MODERATOR
MODERATOR
Avatar
Dark Lord of Optics

Joined: June/15/2004
Location: United States
Status: Offline
Points: 11529
That makes me wonder what is used on some optical assemblies I have seen. The treading feel is buttery smooth and there is no perceptible wobble at all.

ILya
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/09/2017 at 14:04
RifleDude View Drop Down
MODERATOR
MODERATOR
Avatar

Joined: October/13/2006
Location: Texas
Status: Online
Points: 14754
Basically what RC and others are seeing with regards thread fit on a mating thread cut by gunsmith is the difference between cutting a mass-produced thread to print spec vs. individually mating a thread to a particular part. Don't misunderstand; the former is not an indication of low quality or lack of QC; it is simply the reality with mass production. The manufacturer of the barrel has to cut the thread within industry standard thread tolerances with complete interchangeability in mind, so that any manufacturer's brake/flash hider/suppressor fits any barrel they make. They will use a go/no go thread ring gage to check fit. If the "go" ring gage mates up with the thread and the "no go" won't fit, the thread is within spec.

A gunsmith or anyone making custom parts will "sneak up" on the fit by first checking thread fit at max material condition, then using the ACTUAL mating part as a gage, check fit after each cutting pass, stopping as soon as the two mating parts just thread together with no extra clearance for interchangeability. This results in a custom thread that fits the part with precision, but may not be "in spec." The advantage here is you have a nice precision fit to the actual muzzle device. The disadvantage is the thread may not fit any other given muzzle device with the same thread pitch, depending on what class of fit a thread on a given muzzle device is cut to and where its pitch diameter, root diameter, and crest diameter falls within the specification limits. A gunsmith can do this because they are making a one-off custom item. A high volume manufacturer cannot size a barrel thread for a precision fit to one single mating part or they run the risk of many brakes/suppressors not fitting, which will obviously piss off consumers.


Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/09/2017 at 15:01
supertool73 View Drop Down
Optics God
Optics God
Avatar
Superstool

Joined: January/03/2008
Location: Utah
Status: Offline
Points: 10196
Hey, that's sorta what I said.  Just in fewer words.  Wink

Your the man Ted.  Thanks for your great explanations.  Its awesome having a machinist to teach us these things
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/12/2017 at 11:11
criterionbarrels View Drop Down
Optics GrassHopper
Optics GrassHopper
Avatar

Joined: February/09/2015
Status: Offline
Points: 4
Good morning,

We appreciate the feedback regarding desired changes regarding our thread length. We are putting together an engineering change notification to have the design specifications modified for future production batches.

I'm glad we were able to accommodate your request to cut down and recrown your muzzle threads to meet your desired specifications. Feel free to let us know if there is anything else we can help with on our end!
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/12/2017 at 11:31
supertool73 View Drop Down
Optics God
Optics God
Avatar
Superstool

Joined: January/03/2008
Location: Utah
Status: Offline
Points: 10196
Thanks Josh.  Glad to see you guys commenting and willing change specs based on feedback.  I am wanting a new light weight AR-15 barrel and the one you guys are making for american defense mfg looks very good. 

I do appreciate you guys fixing that for me.  Mike was great to help get my issue resolved. 
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/12/2017 at 12:04
koshkin View Drop Down
MODERATOR
MODERATOR
Avatar
Dark Lord of Optics

Joined: June/15/2004
Location: United States
Status: Offline
Points: 11529
Welcome to the forum, Mike!

I have a couple of your barrels (that you make for Fulton Armory) and they have been working well for me.

ILya
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/12/2017 at 12:46
jonoMT View Drop Down
Optics Master Extraordinaire
Optics Master Extraordinaire
Avatar

Joined: November/13/2008
Location: Montana
Status: Offline
Points: 4774
Originally posted by criterionbarrels criterionbarrels wrote:

Good morning,

We appreciate the feedback regarding desired changes regarding our thread length. We are putting together an engineering change notification to have the design specifications modified for future production batches.

I'm glad we were able to accommodate your request to cut down and recrown your muzzle threads to meet your desired specifications. Feel free to let us know if there is anything else we can help with on our end!

Sounds like the issue is being addressed well, if a little late. Still seems a bit harsh to say never to what are generally very good barrels at decent prices. Not every rifle needs a top-of-the-line barrel, yet many can benefit from a better-than-factory barrel or just a new barrel period. I had an M1 Garand rebarreled with a Criterion and it cut group size in half. Guy who bought it said it was the best shooting of all 5 of his.

And, Ted, appreciated all the threading info too. So if nothing else, we all got a bit more educated out of this!
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/13/2017 at 04:32
Kickboxer View Drop Down
MODERATOR
MODERATOR
Avatar
Moderator

Joined: February/13/2008
Status: Offline
Points: 19103
Ted, that Fastenal link is great.  I have a nephew (wife's side) who works for Fastenal... He is in sales, though.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/13/2017 at 20:15
Urimaginaryfrnd View Drop Down
MODERATOR
MODERATOR
Avatar
Resident Redneck

Joined: June/20/2005
Location: Iowa
Status: Offline
Points: 14144
Cool He knows more about a good screw than a hooker.Cool
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/13/2017 at 20:50
Kickboxer View Drop Down
MODERATOR
MODERATOR
Avatar
Moderator

Joined: February/13/2008
Status: Offline
Points: 19103
Wes, that is a great line, but it may not fit my nephew...
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/14/2017 at 09:51
jonoMT View Drop Down
Optics Master Extraordinaire
Optics Master Extraordinaire
Avatar

Joined: November/13/2008
Location: Montana
Status: Offline
Points: 4774
Originally posted by Urimaginaryfrnd Urimaginaryfrnd wrote:

Cool He knows more about a good screw than a hooker.Cool

That reminds me of a "poem" inside a bar bathroom I once read. Unfortunately, repeating it all would violate any standards of decency. Let's just say it involved threaded "equipment" and love found and lost instantly when it turned out one was left-hand threaded.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/14/2017 at 10:13
supertool73 View Drop Down
Optics God
Optics God
Avatar
Superstool

Joined: January/03/2008
Location: Utah
Status: Offline
Points: 10196
Criterion should be getting my barrel today.  I am already giddy to get it back.  5 rounds out of it was not enough, I need to shoot it more. 
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/21/2017 at 14:10
supertool73 View Drop Down
Optics God
Optics God
Avatar
Superstool

Joined: January/03/2008
Location: Utah
Status: Offline
Points: 10196
Got an email from Mike at criterion today. My barrel threads have been shortened and they will ship it back asap.   Very happy with their CS.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/21/2017 at 16:43
Kickboxer View Drop Down
MODERATOR
MODERATOR
Avatar
Moderator

Joined: February/13/2008
Status: Offline
Points: 19103
That was quick.  Excellent.  
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/30/2017 at 18:51
supertool73 View Drop Down
Optics God
Optics God
Avatar
Superstool

Joined: January/03/2008
Location: Utah
Status: Offline
Points: 10196
Barrel arrived yesterday. Hopefully install it this weekend, then get some rounds down range. Right at .6 now. Thanks Criterion.
 Post Reply Post Reply Page  < 12
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Similar Threads: "Criterion 6.5 creedmoor barrel issues"
Subject Author Forum Replies Last Post
6.5 creedmoor Bigdaddy0381 Firearms 19
6.5 creedmoor rifles? stork23raz Firearms 11
New Tactical Scope for 6.5 Creedmoor ahiaring Tactical Scopes 13
6.5 creedmoor package for sale ahiaring Firearms For Sale 2
Savage 10BA 6.5 Creedmoor JF4545 Firearms 15
6.5 Creedmoor scope 03mossy Rifle Scopes 16
6.5 Creedmoor AR Marine24 Tactical Scopes 7
Savage Model 12 LPR 6.5 Creedmoor JF4545 Firearms 14
new 6.5 Creedmoor build in! ccoker Firearms 30
1-4 scope/barrel issue chase102798 Tactical Scopes 5


This page was generated in 0.340 seconds.