Acsr Posted May 3, 2017 Share Posted May 3, 2017 Friend went out shooting his sti edge 40 s&w had a aftermarket bar sto barrel. This was a used Gunn but all signs of wear showed minimum wear, although it did have a different barrel in it obviously. It cracked on the barrel where the link pins to the barrel. What would cause this and is there a fix either through bar sto, or another way rather then a new barrel. I will try and post pic if I can figure out how to. Thanks in advance. Sent from my SM-G920V using Tapatalk Link to comment Share on other sites More sharing options...
ShortBus Posted May 3, 2017 Share Posted May 3, 2017 Maybe too short of a link? Link to comment Share on other sites More sharing options...
warpspeed Posted May 3, 2017 Share Posted May 3, 2017 Call Irv @ Bar-Sto on Monday and send him the pics. I'm sure he will know exactly what went wrong. What does the link look like? Link to comment Share on other sites More sharing options...
warpspeed Posted May 3, 2017 Share Posted May 3, 2017 Just now, ShortBus said: Maybe too short of a link? In theory, the link should break before the barrel does. Link to comment Share on other sites More sharing options...
Foxj66 Posted May 3, 2017 Share Posted May 3, 2017 Incorrect fit would be my guess. Link to comment Share on other sites More sharing options...
Acsr Posted May 3, 2017 Author Share Posted May 3, 2017 Any warranty on this, can it be fixed or is it toast? Sent from my SM-G920V using Tapatalk Link to comment Share on other sites More sharing options...
MisterCoffee Posted May 3, 2017 Share Posted May 3, 2017 1 hour ago, Foxj66 said: Incorrect fit would be my guess. x 2. Link to comment Share on other sites More sharing options...
MisterCoffee Posted May 3, 2017 Share Posted May 3, 2017 1 hour ago, Acsr said: Any warranty on this, can it be fixed or is it toast? Sent from my SM-G920V using Tapatalk Why bother? I would buy a new barrel and have it fitted (assuming there is no damage to the frame and slide). Link to comment Share on other sites More sharing options...
drewbeck Posted May 3, 2017 Share Posted May 3, 2017 Check the VIS of the frame, how peened is it? did it run good until failure? Looks like the lower lug was sheared off rather than pulled off. How wallowed/carved out was the link? my barsto although CP cut was .045+ long on the lower lug. If not corrected the lower or upper is gonna shear off. Link can be ground out to make it run temporarily but that's gonna kill the barrel, frame, or slide likely before the link breaks. I'm no expert, just my experience with getting a barsto to run Link to comment Share on other sites More sharing options...
bkjunk Posted May 3, 2017 Share Posted May 3, 2017 I have had two Barsto barrels fail in my xdm. Both times I sent the gun to Barsto and they fitted a new barrel at no charge.Sent from my Nexus 7 using Tapatalk Link to comment Share on other sites More sharing options...
Bamboo Posted May 3, 2017 Share Posted May 3, 2017 I had a Bar-sto barrel in a 38 super that had the lower lugs shear off (back when major was 175pf). Several respected gunsmiths inspected the fit and all seemed good. Irv was cool and replaced the barrel, but made it clear if it happened again he wasn't going to replace it. It did not happen again, and never did figure out exactly what caused the first barrel to shear the lugs. However, when stuff like this happens it usually is a barrel fitting issue. Link to comment Share on other sites More sharing options...
EEH Posted May 3, 2017 Share Posted May 3, 2017 7 hours ago, Acsr said: Any warranty on this, can it be fixed or is it toast? Sent from my SM-G920V using Tapatalk More like Burnt toast.. replace it,have fit checked,unless you can do it yourself... Link to comment Share on other sites More sharing options...
RippinSVT Posted May 3, 2017 Share Posted May 3, 2017 The rear of the bottom lug should be contacting the VIS towards the top of the lug, distributing force at it's strongest point, or at bare minimum it should have even contact. You'll often see the VIS relieved with an endmill to create a "bowtie" raised portion whereby the top of the lug must contact the VIS because the bottom of the VIS is relieved several thousandths. I suppose a short link could cause this, but it's much more likely that the link or slidestop pin would break first. My guess is that is was a really bad barrel fit that was riding the link hard and not hitting the VIS correctly. Link to comment Share on other sites More sharing options...
jim vaughan Posted May 4, 2017 Share Posted May 4, 2017 Go to Schuemann's web site and read up barrel timing. All of the tests are there relating to barrel lug problems. Link to comment Share on other sites More sharing options...
ACree Posted May 4, 2017 Share Posted May 4, 2017 I would agree with the above comments about the lower lug improperly engaging the VIS. Lugs will shear off if the lower portion of the lug makes repeated contact with the VIS. Andy Cree Link to comment Share on other sites More sharing options...
jimbullet Posted May 5, 2017 Share Posted May 5, 2017 On 5/3/2017 at 3:19 PM, Acsr said: Friend went out shooting his sti edge 40 s&w had a aftermarket bar sto barrel. This was a used Gunn but all signs of wear showed minimum wear, although it did have a different barrel in it obviously. It cracked on the barrel where the link pins to the barrel. What would cause this and is there a fix either through bar sto, or another way rather then a new barrel. I will try and post pic if I can figure out how to. Thanks in advance. Sent from my SM-G920V using Tapatalk A similar thing happened to me last year and everyone said its incorrect fitting to the VIS. I look at the VIS and no signs of an incorrect fitting but I must say I have not inspected it in detail prior to failing so the barrel test as per Shuemann website. Bottomline is this barrel is now useless and a throwaway. There is no way to weld it whatsoever as it has already failed. Replace and move on. Oh by the way, the suspicion was high powered loads, maybe higher than SAAMI pressure. Link to comment Share on other sites More sharing options...
ltdmstr Posted May 5, 2017 Share Posted May 5, 2017 I have installed a lot of Bar-Sto barrels over 20+ years and never had one break. I would say chances are 99%+ this was caused by incorrect fitting. Link to comment Share on other sites More sharing options...
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