MrPostman Posted May 10, 2017 Share Posted May 10, 2017 I see no evidence of bullets hitting the comp. The gun locks up very tight...I can put a piece of paper in between the comp and the end of the slide and then let the slide close, if that's what you meant?Usually the bullet will hit the last or next to last barrel hole in the last or next to last compensator chamber before it exits the gun. Almost all the ones I have seen with a tumbling issue usually has the bullet inpact in either of those areas inside the comp. If it has a thread on comp then this can happen, that is why STI makes trubor barrels, no chance of misalignment whatsoever.Sent from my SAMSUNG-SM-G935A using Tapatalk Link to comment Share on other sites More sharing options...
TeedOff Posted May 19, 2017 Author Share Posted May 19, 2017 Got my barrel back...six days from when I sent it to receiving it back. Now it's plunking my 1.160" loads no problem. Thanks Matt Cheely for the quick turnaround. Shooting single stack nats on Saturday so I won't test it until Sunday. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
BeerBaron Posted May 19, 2017 Share Posted May 19, 2017 Sweet. glad it's sorted but it's got me stumped why they are sending out guns with short chambers... Link to comment Share on other sites More sharing options...
TeedOff Posted May 19, 2017 Author Share Posted May 19, 2017 (edited) 11 hours ago, BeerBaron said: Sweet. [emoji4] glad it's sorted but it's got me stumped why they are sending out guns with short chambers... Yeah, it seems like a known issue. Sent from my iPhone using Tapatalk Edited May 19, 2017 by TeedOff Link to comment Share on other sites More sharing options...
Steelix Posted May 19, 2017 Share Posted May 19, 2017 Glad you got it fixed and fast turn around. Link to comment Share on other sites More sharing options...
Hi-Power Jack Posted May 19, 2017 Share Posted May 19, 2017 Did they say what the problem was ? Link to comment Share on other sites More sharing options...
TeedOff Posted May 19, 2017 Author Share Posted May 19, 2017 Did they say what the problem was ?No. I said my rounds would not plunk. He said send him the barrel and a dummy round and he would fix it. At least so far as my rounds passing the plunk test, that's good to go. I'll get some rounds down range Sunday to see if this cured the key holing problem too. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
Gooldylocks Posted May 19, 2017 Share Posted May 19, 2017 With that short of chamber, clearly they failed to ream the chamber at all (seems like a big thing to miss?). That is how short chambered .355 barrels are delivered from the factory. Link to comment Share on other sites More sharing options...
nbot Posted May 19, 2017 Share Posted May 19, 2017 How long of a chamber did Matt bring yours to? 1.160 Seems short still for a 124 MG JHP. Have you tried longer with it? Link to comment Share on other sites More sharing options...
Hi-Power Jack Posted May 19, 2017 Share Posted May 19, 2017 I've been loading 124 MG JHP to 1.16 or 1.165" for 8 years Used to load them to 1.145" - no problem. Link to comment Share on other sites More sharing options...
al503 Posted May 19, 2017 Share Posted May 19, 2017 No reason not to be able to load longer than 1.14" I loaded MG 124 JHP's out to 1.21", almost 38 super length, with a compressed load (3n38.) No issues with set back. I've rechambered several rounds 5 times and they lost from 0 to .001". I settled on 1.2". No reason to keep the initial pressure spike to a minimum, if you can. Link to comment Share on other sites More sharing options...
TeedOff Posted May 19, 2017 Author Share Posted May 19, 2017 55 minutes ago, nbot said: How long of a chamber did Matt bring yours to? 1.160 Seems short still for a 124 MG JHP. Have you tried longer with it? I have been loading to 1.160" for my DVC, so I sent him a dummy round at 1.175" just to give me a little room to load longer if I decide to. I haven't had a chance to try anything longer as I am currently set up and running my PCC load. I should be able to switch back to the 9 Major setup on the press and try some longer loads and see what's what in the next week or so. Link to comment Share on other sites More sharing options...
xdnok Posted May 19, 2017 Share Posted May 19, 2017 On one of my CK guns I had to run a reamer down the compensator to help the accuracy in one my guns. Link to comment Share on other sites More sharing options...
nbot Posted May 19, 2017 Share Posted May 19, 2017 Did you have any short ejection problems with your new CK, or was it just the keyhole and short chamber? Link to comment Share on other sites More sharing options...
TeedOff Posted May 19, 2017 Author Share Posted May 19, 2017 I'll keep an eye on that. The first problem I wanted solved was the extremely short chamber. Planning to test it out on Sunday and see if the keyholing is solved or if I need to look closer at the comp for signs of strikes. Link to comment Share on other sites More sharing options...
TeedOff Posted May 19, 2017 Author Share Posted May 19, 2017 1 minute ago, nbot said: Did you have any short ejection problems with your new CK, or was it just the keyhole and short chamber? That's "all"...just the short chamber and the keyholing. The ejection seems fine. It ejects about 4'...which is 1/2 the distance of my DVC, which is slinging brass way out now that the ejector and extractor are all tuned up. Link to comment Share on other sites More sharing options...
nbot Posted May 19, 2017 Share Posted May 19, 2017 Just now, TeedOff said: That's "all"...just the short chamber and the keyholing. The ejection seems fine. It ejects about 4'...which is 1/2 the distance of my DVC, which is slinging brass way out now that the ejector and extractor are all tuned up. Ha, yes. The dribble. Well, hopefully during your test all goes well Link to comment Share on other sites More sharing options...
theWacoKid Posted May 19, 2017 Share Posted May 19, 2017 A note to everyone. It's not that the chamber is short it's that the throat is insufficient for long loaded jhp's. My CK would not initially plunk jhp's past about 1.140" HOWEVER it would plunk MG CMJ's at 1.190". Technically there are are no true specs on 9x19 throats. It's highly variable and they can be short or long as well as tapered at different rates. Link to comment Share on other sites More sharing options...
nbot Posted May 19, 2017 Share Posted May 19, 2017 1 minute ago, theWacoKid said: A note to everyone. It's not that the chamber is short it's that the throat is insufficient for long loaded jhp's. My CK would not initially plunk jhp's past about 1.140" HOWEVER it would plunk MG CMJ's at 1.190". Technically there are are no true specs on 9x19 throats. It's highly variable and they can be short or long as well as tapered at different rates. That's a great clarification Link to comment Share on other sites More sharing options...
Gman57 Posted May 20, 2017 Share Posted May 20, 2017 On 5/6/2017 at 2:33 PM, racer-x said: Definitely do the plunk test to determine how long you can load. I have 2 CK open 9's now and MG124's contact the throat at 1.40-1.145 OAL in both. I load to 1.130 OAL. 6.9 gr WAC @ 1.130 is good for 1410 in my guns as well. When I bought my open 9 from Bobby he told me to run 1.140 OAL with MG 124 JHP and this is working for me. 6.9 WAC with a 173 PF, gun has been running 99%. Any failure was on me not the gun. G Link to comment Share on other sites More sharing options...
Hi-Power Jack Posted May 20, 2017 Share Posted May 20, 2017 1 hour ago, Gman57 said: gun has been running 99%. 99% is NOT acceptable for USPSA .... My TruBor runs 100.000% (unless it needs a new spring ... ) What's the problem with your gun? Link to comment Share on other sites More sharing options...
Gman57 Posted May 20, 2017 Share Posted May 20, 2017 Not sure happened twice..... after reload failure hammer to drop.... rack slide and all is ok. Never been able to figure it out. Link to comment Share on other sites More sharing options...
theWacoKid Posted May 20, 2017 Share Posted May 20, 2017 57 minutes ago, Gman57 said: Not sure happened twice..... after reload failure hammer to drop.... rack slide and all is ok. Never been able to figure it out. Sounds like bumped safety. Any chance that's it? Link to comment Share on other sites More sharing options...
Hi-Power Jack Posted May 20, 2017 Share Posted May 20, 2017 Bumped safety is what I suspect, also. Link to comment Share on other sites More sharing options...
Gman57 Posted May 20, 2017 Share Posted May 20, 2017 I kind of thought that too. Things are moving to fast in the match to stop and look. Never happened in practice. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now