Foxbat Posted September 27, 2011 Share Posted September 27, 2011 This my new primary open gun, it has been totally reliable from the start of season, but last two matches I had one and two stove pipe jams. Also had some during practice - but all only very recently, as if something is beginning to wear out. What to look at? Primary suspect? Gun has vertical mount. Like I said, so far has been totally reliable through many thousands of rounds, both mixed and Win brass. These failures all happened with match Win brassed ammo. I am thinking about switching to Federal brass, but still, would like to understand the cause first. Link to comment Share on other sites More sharing options...
DocMedic Posted September 27, 2011 Share Posted September 27, 2011 I usually start with ammo, is your OAL the same? did the powder bar shift and your not getting as much grains? is your brass going bad?(shot out?) Then check your extractor see if anything chipped, then springs so on so forth. I've had the powder bar thing happen to me before and the bullets weren't getting enough oomf to cycle the slide completely to eject. Link to comment Share on other sites More sharing options...
Texas45 Posted September 28, 2011 Share Posted September 28, 2011 How many rounds through gun? I had same problem with my 9 mm and changed recoil spring and solved the problem Link to comment Share on other sites More sharing options...
robot Posted September 28, 2011 Share Posted September 28, 2011 Another place to look at is the extractor. see if it's tensioned properly, also I had a problem with stovepipes recently with my 38SC and the cause was the extractor claw was a hair longer and started hitting the barrel. you can see very slight peening on both surfaces. Link to comment Share on other sites More sharing options...
Hi-Power Jack Posted September 28, 2011 Share Posted September 28, 2011 During practice sessions, see if all the jams are occurring from a single magazine - I've had that problem - it was the mag spring that needed changing.. Jack Link to comment Share on other sites More sharing options...
A63111 Posted September 28, 2011 Share Posted September 28, 2011 Start simple, have you cleaned the extractor and tunnel? I agree with others that something changed but if the gun ran all season I would start on the easy side. Link to comment Share on other sites More sharing options...
lcs Posted September 28, 2011 Share Posted September 28, 2011 Start simple, have you cleaned the extractor and tunnel? I agree with others that something changed but if the gun ran all season I would start on the easy side. And see where the spent brass is falling. They should be about the same distance in the same area. If your brass ejection is erratic--then it is probably the extractor. Is the extractor an AFTEC? Link to comment Share on other sites More sharing options...
BMartens Posted September 28, 2011 Share Posted September 28, 2011 Had this problem with 170 mags. If it is confined to your big sticks just clean them real good and stretch the springs about 2" and bend the follower end up to 45 degrees. See if that works. Link to comment Share on other sites More sharing options...
Foxbat Posted September 29, 2011 Author Share Posted September 29, 2011 Thank you all! The extractor and its channel are cleaned regularly, can't tell yet if it is all related to the single mag... will try other things and will talk to the smith. Link to comment Share on other sites More sharing options...
soaringf22 Posted October 1, 2011 Share Posted October 1, 2011 is it a stove pipe for sure? my 9 were ejecting into the mount then bounced back in the slide appearing like a stovepipe. lowering the point on my ejector fixed the problem. Link to comment Share on other sites More sharing options...
Foxbat Posted October 1, 2011 Author Share Posted October 1, 2011 is it a stove pipe for sure? my 9 were ejecting into the mount then bounced back in the slide appearing like a stovepipe. lowering the point on my ejector fixed the problem. It very well could be a bounce, but the point is the gun used to be free from it. Link to comment Share on other sites More sharing options...
soaringf22 Posted October 2, 2011 Share Posted October 2, 2011 so was mine at first. it only made it maybe 600 rounds before i had the issue, not nearly as long as yours lasted though. the other thing is could the ejector possibly be damaged from an over inserted mag? Link to comment Share on other sites More sharing options...
remoandiris Posted October 2, 2011 Share Posted October 2, 2011 Maybe the extractor springs need replaced. Link to comment Share on other sites More sharing options...
HI5-O Posted October 2, 2011 Share Posted October 2, 2011 I know it's a 9mm but my 38SC started doing the same thing, working fine one day then all of a sudden the empty cases would get caught between the breech face and the barrel hood. Saw it was striking the scope mount. Changed the extractor springs, no luck. Changed the ejector, no luck. Finally changed the extractor and firing pin stop and now working like a champ. Good luck with your gun. Link to comment Share on other sites More sharing options...
soaringf22 Posted October 3, 2011 Share Posted October 3, 2011 Maybe the extractor springs need replaced. he did not say if it was an aftec. for what its worth i use only one spring in my aftec. Link to comment Share on other sites More sharing options...
soaringf22 Posted October 3, 2011 Share Posted October 3, 2011 I know it's a 9mm but my 38SC started doing the same thing, working fine one day then all of a sudden the empty cases would get caught between the breech face and the barrel hood. Saw it was striking the scope mount. Changed the extractor springs, no luck. Changed the ejector, no luck. Finally changed the extractor and firing pin stop and now working like a champ. Good luck with your gun. thats interesting, not to hijack the thread but, I wonder if you would have had that problem if you used a standard extractor as opposed to the aftec. Link to comment Share on other sites More sharing options...
Foxbat Posted October 3, 2011 Author Share Posted October 3, 2011 I finally got my hands on new Aftec springs (should have kepta them in a more convenient location!) and compared them to the ones in the gun - they are almost 1mm longer! So putting them in, interesting to see if this will cure the issue. Link to comment Share on other sites More sharing options...
Foxbat Posted October 5, 2011 Author Share Posted October 5, 2011 Since replacing springs went through about 400 rounds without any issues. Link to comment Share on other sites More sharing options...
remoandiris Posted October 6, 2011 Share Posted October 6, 2011 Since replacing springs went through about 400 rounds without any issues. Congrats. Looks like I finally got one right. Mine has started stovepiping, too. Could be it's just dirty, but it probably needs new springs in the Aftec. Link to comment Share on other sites More sharing options...
Whoops! Posted October 10, 2011 Share Posted October 10, 2011 If it's a failure to feed after a few thousand rounds, 95% chance it's the recoil spring or hammer spring. The extractor would be much more likely to be the cause if the gun or extractor was new, not well used. Odds are when his extractor starts to wear out, he'll get failures to eject. Link to comment Share on other sites More sharing options...
CocoBolo Posted October 10, 2011 Share Posted October 10, 2011 Foxbat - To keep that AFTEC doing its job you need to clean the extractor tunnel every 1-2k depending on if you use Dykem on your brass and the powder that you are using. Using AA#7 its more often than Silhouette etc. When the extractor tunnel gets dirty you will notice during make ready that the slide seems a little sluggish closing, this is caused by the round having trouble walking up the breech face due to extra extractor tension, followed by you guessed it stove pipes. I change the AFTEC springs about every 24,000 rounds or once a year, and carry a spare set in the range bag along with a spare cap. Link to comment Share on other sites More sharing options...
Foxbat Posted October 11, 2011 Author Share Posted October 11, 2011 Since I changed the springs, the gun has been running 100%. As I mentioned, the old ones were quite a bit shorter after about 10K rounds. I regularly clean the extractor channel and its springs. Link to comment Share on other sites More sharing options...
dave79 Posted December 17, 2011 Share Posted December 17, 2011 During practice sessions, see if all the jams are occurring from a single magazine - I've had that problem - it was the mag spring that needed changing.. Jack This is also my problem and a can get my hands on a longer spring. Also i'know that my brass is hitting the mount. How can i get the brass ejecting flatter? Link to comment Share on other sites More sharing options...
dave79 Posted December 29, 2011 Share Posted December 29, 2011 During practice sessions, see if all the jams are occurring from a single magazine - I've had that problem - it was the mag spring that needed changing.. Jack This is also my problem and a can get my hands on a longer spring. Also i'know that my brass is hitting the mount. How can i get the brass ejecting flatter? More spring pressure is not helping. Still its only with my 170mm magazine. My friend can shoot the mag without a single jam, and i have the same problem with his 170 mag, that has never faild min his gun. Somebody any sugestions???? Start to go crazy over this thing!! Link to comment Share on other sites More sharing options...
Hi-Power Jack Posted December 29, 2011 Share Posted December 29, 2011 This my new primary open gun, it has been totally reliable from the start of season, but last two matches I had stove pipe jams. Foxbat, your friend doesn't have jams with his or your 170 mm mags in Your gun or in His gun? You're having jams with your and his 170 mm mags in Your gun or in His gun? Whose ammo are the two of you using? Is he using his ammo with your mag in his gun, and you are using your ammo in your mag in your gun? And you have NO problems with your ammo in your gun with 140 mm mags? Jack 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