f> GP100 3" timing issue? - Ruger Forum

Ruger Forum

GP100 3" timing issue?

This is a discussion on GP100 3" timing issue? within the Pistols & Revolvers forums, part of the Pistol & Revolver Forum category; I bought this used .357 a few months back and have recently had timing or lockup in the cylinder. Its on the 2nd trip to ...


Go Back   Ruger Forum > Pistol & Revolver Forum > Pistols & Revolvers

Reply
 
LinkBack Thread Tools Display Modes

Old April 26th, 2017, 11:40 AM   #1
 
Join Date: Feb 2017
Location: US
Posts: 23
Lakehouse2012 is on a distinguished road
GP100 3" timing issue?

I bought this used .357 a few months back and have recently had timing or lockup in the cylinder. Its on the 2nd trip to Ruger and the customer tech told me this morning that "the revolver is working as designed and that 38 special loads can cause excessive debris under the ejector which would cause the lockup." Any thoughts from it are appreciated.


Sent from my SM-G920V using Tapatalk



Lakehouse2012 is offline  
Advertisements
Old April 26th, 2017, 01:07 PM   #2
 
Join Date: Jan 2009
Location: N. Calif
Posts: 2,529
firescout will become famous soon enough
Quote:
Originally Posted by Lakehouse2012 View Post
I bought this used .357 a few months back and have recently had timing or lockup in the cylinder. Its on the 2nd trip to Ruger and the customer tech told me this morning that "the revolver is working as designed and that 38 special loads can cause excessive debris under the ejector which would cause the lockup." Any thoughts from it are appreciated...
Can you describe the symptoms?
firescout is offline  
Old April 26th, 2017, 02:32 PM   #3
 
Join Date: Feb 2016
Location: Virginia
Posts: 1,148
Petrol and Powder has a spectacular aura aboutPetrol and Powder has a spectacular aura about
Need a little more info.

Debris under the extractor (star) can result in the cylinder failing to close in the frame.

I wouldn't say that 38 Special casings increase the likelihood of debris under the extractor. Poor technique can contribute to trapping debris under the extractor but that can occur with 38 or 357 mag casings.

When speaking about a revolver, "timing" refers to the sequence of events that result in chamber indexing (or not) with the barrel.

Debris under the extractor and timing are different issues.
Petrol and Powder is online now  
 
Old April 26th, 2017, 04:27 PM   #4
 
Join Date: Feb 2017
Location: US
Posts: 23
Lakehouse2012 is on a distinguished road
Quote:
Originally Posted by Petrol and Powder View Post
Need a little more info.

Debris under the extractor (star) can result in the cylinder failing to close in the frame.

I wouldn't say that 38 Special casings increase the likelihood of debris under the extractor. Poor technique can contribute to trapping debris under the extractor but that can occur with 38 or 357 mag casings.

When speaking about a revolver, "timing" refers to the sequence of events that result in chamber indexing (or not) with the barrel.

Debris under the extractor and timing are different issues.
Thanks for the reply! Its felt like the brass, once fired, the headstamp grows in height and then i cant index with either hammer or trigger. Its possible that it really is a dirt issue, but im a long time revolver owner and haven't seen one this finicky.

Sent from my SM-G920V using Tapatalk
Lakehouse2012 is offline  
Old April 26th, 2017, 04:29 PM   #5
 
Join Date: Feb 2017
Location: US
Posts: 23
Lakehouse2012 is on a distinguished road
The result is the gun feels locked when i pull trigger or hammer. Ive only been able to unlock when opening cylinder and manually rotating to new position

Sent from my SM-G920V using Tapatalk
Lakehouse2012 is offline  
Old April 26th, 2017, 05:23 PM   #6
 
Join Date: Feb 2016
Location: Virginia
Posts: 1,148
Petrol and Powder has a spectacular aura aboutPetrol and Powder has a spectacular aura about
I have no idea what you're trying to say.
Petrol and Powder is online now  
Old April 26th, 2017, 06:07 PM   #7
 
Join Date: Feb 2017
Location: US
Posts: 23
Lakehouse2012 is on a distinguished road
Quote:
Originally Posted by Petrol and Powder View Post
I have no idea what you're trying to say.
I've been on the road and unable to upload a file to help explain, hopefully this makes it easier to understand....
Lakehouse2012 is offline  
Old April 26th, 2017, 06:14 PM   #8
 
Join Date: Feb 2017
Location: US
Posts: 23
Lakehouse2012 is on a distinguished road
For crying out loud these systems are difficult to upload to.... Here is the link to video I've been trying to upload all day:


Guess I need a few more posts.... so here they are:

Quote:
Originally Posted by Lakehouse2012 View Post
I've been on the road and unable to upload a file to help explain, hopefully this makes it easier to understand....
Lakehouse2012 is offline  
Old April 26th, 2017, 06:15 PM   #9
 
Join Date: Feb 2017
Location: US
Posts: 23
Lakehouse2012 is on a distinguished road


Quote:
Originally Posted by Lakehouse2012 View Post
For crying out loud these systems are difficult to upload to.... Here is the link to video I've been trying to upload all day:


Guess I need a few more posts.... so here they are:
Lakehouse2012 is offline  
Old April 26th, 2017, 06:19 PM   #10
 
gqucool's Avatar
 
Join Date: Dec 2009
Location: Utah
Posts: 8,095
gqucool is just really nicegqucool is just really nicegqucool is just really nicegqucool is just really nicegqucool is just really nice
Wow that is something I have never seen with a GP100 wished I had a answer for you other then call Ruger CS they will take care of your problem.
gqucool is offline  
Old April 26th, 2017, 06:21 PM   #11
 
Join Date: Feb 2017
Location: US
Posts: 23
Lakehouse2012 is on a distinguished road
Quote:
Originally Posted by gqucool View Post
Wow that is something I have never seen with a GP100 wished I had a answer for you other then call Ruger CS they will take care of your problem.
The revolver is coming back to me on Friday from the 2nd round trip. CS says there is nothing wrong and it was dirty... that is the root of this post.

Sent from my SM-G920V using Tapatalk
Lakehouse2012 is offline  
Old April 26th, 2017, 06:54 PM   #12
 
Join Date: Jan 2009
Location: N. Calif
Posts: 2,529
firescout will become famous soon enough
On the .38 Special rounds causing 'excessive debris': I could see that happening if the loads are low pressure, resulting in heavy sooting of the cases and partially burned powder to foul the action.
firescout is offline  
Old April 26th, 2017, 07:47 PM   #13
 
Lonnie In Colorado's Avatar
 
Join Date: Apr 2015
Location: Colorado Springs, Colorado
Posts: 467
Lonnie In Colorado is on a distinguished road
Quote:
Originally Posted by Lakehouse2012 View Post
The result is the gun feels locked when i pull trigger or hammer. Ive only been able to unlock when opening cylinder and manually rotating to new position

Sent from my SM-G920V using Tapatalk
I had that very same problem with my GP a year or so ago and the culprit turned out to be a couple of rounds that did not have the primer seated all the way.

Were you shooting handloads, or off the shelf stuff?
Lonnie In Colorado is offline  
Old April 26th, 2017, 07:50 PM   #14
 
Join Date: Feb 2017
Location: US
Posts: 23
Lakehouse2012 is on a distinguished road
They were all handloads, which i hear ya, on primers backing out. BUT- the video i showed there are no brass in the cylinders. So while it could have been primer issue at the range, demo at my desk is a different issue.

Sent from my SM-G920V using Tapatalk
Lakehouse2012 is offline  
Old April 26th, 2017, 08:15 PM   #15
 
Owly's Avatar
 
Join Date: Apr 2014
Location: Northern Wisconsin
Posts: 1,211
Owly will become famous soon enough
A few weeks ago at the range a truck full of kids (three guys in their early 20's) showed up and started shooting a GP100. I notice right away they were having some difficutlies, but I minded my own business and kept focused on chonographing some loads through my Henry BB357.

Apparently, I looked like a worthy source of information, so they approached me to look at the gun they were having issues with.

It was a brand new stainless 4" GP100 and the cylinder was binding just as you describe. This particular revolver turned out to have a very tight BC gap and was actually dragging quite severely on the forcing cone during cycling. After instructing them on how to contact Ruger and package it for shipping, they left the range discouraged but relieved to know it was repairable and would be taken care of promtly by Ruger.

Obviously the issue with your GP is something entirely different and more discreet, otherwise Ruger would have repaired it the first time back. You say the issue resolves itself once the cylinder is opened. After you close the cylinder, how many cycles does it take before it starts binding again?
Owly is offline  
Reply

  Ruger Forum > Pistol & Revolver Forum > Pistols & Revolvers

Thread Tools
Display Modes


Similar Ruger Forum Discussions
Thread Thread Starter Forum Replies Last Post
GP100 "Sticky Pawl" issue (w/ pics) viceroy Gunsmithing 30 December 7th, 2013 10:14 AM
New Vaquero Timing Issue ADP3 Ruger Single Action 2 July 13th, 2013 11:09 AM
GP100 timing calan Ruger Double Action 4 June 27th, 2013 08:15 PM
Timing issue potential with an 8 shot BH? Shiloh13 Ruger Single Action 5 March 19th, 2010 06:28 PM
GP100 Carry-Up Timing jimmykan Ruger Double Action 3 November 18th, 2009 08:57 PM

Top Gun Sites Top Sites List
Powered by vBulletin 3.8.7
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.1
Copyright © 2006 - 2017 Ruger Forum. All rights reserved.
Ruger Forum is a Ruger Firearms enthusiast's forum, but it is in no way affiliated with, nor does it represent Sturm Ruger & Company Inc. of Southport, CT.