hav3n Posted December 8, 2016 Share Posted December 8, 2016 (edited) Hi guys, Parts list as of when this issue was happening. EGD Xtreme Tanfoglio Sear Tanfoglio Optimized Firing Pin Spring Tanfoglio Optimized Hammer Spring 12lb Tanfoglio Optimized Trigger Return Spring - Reduced Power EAA/Tanfoglio Witness Long-Slide 8lb Recoil Spring Tanfoglio Optimized "BOLO" Interrupter EGD Xtreme Titan Hammer EAA / Tanfoglio Witness Reduced Weight Trigger Plunger Springs Set by Henning (Using 18lb) EAA / Tanfoglio Witness Large Frame DA/SA Trigger w/ Over-travel Stop (102014) Pretty decent polish job Using these cheap mags - https://www.cdnnsports.com/eaa-witness-large-frame-9mm-17rd-afc-magazine-oe.html?___SID=U Anyone experienced this issue? Load 3 rounds in the magazine -> fire -> case ejects picks up the next round in the mag but the last bullet is so far forward that it is hitting the feed-ramp and preventing the round from seating. Press mag release -> bullet / mag drops out of the way and slide closes correctly on the 2nd to last round. Anyone had this before? Why is the second to last round riding forward so far to hit the feed ramp inside the gun? I'm going to put the original recoil spring back in tonight and give it a test tonight at the range. I've also put the 20lb plunger spring back in due to ARy's suggestion in another thread - Will probably go back to factory 22lb soon. Edited December 8, 2016 by hav3n Link to comment Share on other sites More sharing options...
hav3n Posted December 8, 2016 Author Share Posted December 8, 2016 It happened with all of the mags I tested (3 or so). I think i only brought the ones I had bought from CDNN though. I'll have to look for my factory mag. 'Tuning' meaning? They're too long front to back? Link to comment Share on other sites More sharing options...
SISIG Posted December 8, 2016 Share Posted December 8, 2016 Does all your magz numbered? So you can isolate the culprit. I have one factory magz that doing this, Henning sells mag spring kit for large frame- 6/pack( me far)I shot over 1500 in 3 days zero problem after I change it. Link to comment Share on other sites More sharing options...
johnbu Posted December 8, 2016 Share Posted December 8, 2016 (edited) O Take off and turn the slide over. There is a rib from the breech face to firing pin keeper. Chamfer the leading edge with a file (45degree angle), polish that and the rib. The sharp edge is dragging a round and causing the issue. (Most probably) Inserted a picture of the rib and arrow on where to chamfer. That one is polished, but not yet chamfered. Edited December 8, 2016 by johnbu Add photo Link to comment Share on other sites More sharing options...
MemphisMechanic Posted December 8, 2016 Share Posted December 8, 2016 First, number your mags. All of them. For every gun you own. Check that number every time you have a malfunction. Even seemingly innocent ones like rounds going click. Make that a habit. I use an engraving bit in a dremel but a sharpie on the basepad works fine. Second, have you tried different ammo? Change OALs or bullet profiles just to see. Sudden reliability issues that rise out of nowhere are Ammo, Mag, and gun related. Usually in that order. Most people want to immediately try to diagnose the gun and overlook the actual cause. First thing I would do would be to chamfer and polish the slide where Johnbu suggested. I barely fired mine without that modification, so I'll assume it helped. Second would be to number your mags, bring factory K9 and your CDNN MecGar's to the range and try two different types of your reloads, or grab a box of factory stuff to test it. Those mags have never given me a feeding issue that I've found, btw. Granted my gun is rather new... but I'm running one K9 mag and six MecGar's from CDNN Link to comment Share on other sites More sharing options...
hav3n Posted December 9, 2016 Author Share Posted December 9, 2016 (edited) Thanks Johnbu, ARY, Memphis. I had the issue happen on he first stage of four tonight. Then the other 3 of them ran clean. Not sure what that means. Could have been a grip issue? I'll update later with more info. Edited December 9, 2016 by hav3n Link to comment Share on other sites More sharing options...
ryridesmotox Posted December 9, 2016 Share Posted December 9, 2016 Doubt it was a grip issue. In my experience with 1911s, you're going to have to tune mags. The feed lips may not put the proper tension on the cartridges in the magazine. Too much or too little can cause a feed issue. Link to comment Share on other sites More sharing options...
johnbu Posted December 9, 2016 Share Posted December 9, 2016 "Could be" mag related.... but do the chamfer and polish first. Odds are the issue will go away. 11 hours ago, hav3n said: Thanks Johnbu, ARY, Memphis. I had the issue happen on he first stage of four tonight. Then the other 3 of them ran clean. Not sure what that means. Could have been a grip issue? I'll update later with more info. Link to comment Share on other sites More sharing options...
hav3n Posted December 10, 2016 Author Share Posted December 10, 2016 On 12/8/2016 at 4:39 PM, johnbu said: O Take off and turn the slide over. There is a rib from the breech face to firing pin keeper. Chamfer the leading edge with a file (45degree angle), polish that and the rib. The sharp edge is dragging a round and causing the issue. (Most probably) Inserted a picture of the rib and arrow on where to chamfer. That one is polished, but not yet chamfered. How'd I do? before first 2 - after second 2 Link to comment Share on other sites More sharing options...
emjei Posted December 29, 2016 Share Posted December 29, 2016 Issue solved ???Sent from my SAMSUNG-SM-G900A using Tapatalk Link to comment Share on other sites More sharing options...
hav3n Posted December 30, 2016 Author Share Posted December 30, 2016 14 hours ago, emjei said: Issue solved ??? Sent from my SAMSUNG-SM-G900A using Tapatalk Sorry i didn't update this before. Issue solved. Link to comment Share on other sites More sharing options...
johnbu Posted December 30, 2016 Share Posted December 30, 2016 Pretty scary laying a dang file to a $1000 gun! But, it works. If you look at a "service" pistol like a glock, you can see the major chamfer the give at the factory. Link to comment Share on other sites More sharing options...
B_RAD Posted December 30, 2016 Share Posted December 30, 2016 7 minutes ago, johnbu said: Pretty scary laying a dang file to a $1000 gun! But, it works. If you look at a "service" pistol like a glock, you can see the major chamfer the give at the factory. Yeah, I'm looking at mine. A little nervous. You F it up and you need a new slide! Link to comment Share on other sites More sharing options...
MemphisMechanic Posted December 30, 2016 Share Posted December 30, 2016 (edited) I think I did mine before it was ever fired. Man up! Just round the corner off with perhaps a 1/16" radius on it. And remember that you can always go back and remove more, but it's hard to put the metal back... Edited December 30, 2016 by MemphisMechanic Link to comment Share on other sites More sharing options...
emjei Posted December 30, 2016 Share Posted December 30, 2016 Which file ??Sent from my SAMSUNG-SM-G900A using Tapatalk Link to comment Share on other sites More sharing options...
CHA-LEE Posted December 30, 2016 Share Posted December 30, 2016 When I was shooting EAA/Tanfo guns I had to round that edge on every single one of my guns slides to keep the OP's issue from happening. Why EAA/Tanfo does not do it when they manufacture the slides is beyond my understanding. Virtually all other gun manufactures round that corner on their slides to avoid this very issue. Link to comment Share on other sites More sharing options...
B_RAD Posted December 30, 2016 Share Posted December 30, 2016 5 minutes ago, CHA-LEE said: When I was shooting EAA/Tanfo guns I had to round that edge on every single one of my guns slides to keep the OP's issue from happening. Why EAA/Tanfo does not do it when they manufacture the slides is beyond my understanding. Virtually all other gun manufactures round that corner on their slides to avoid this very issue. I've been asking myself why tanfo lets these guns out the door in the condition they're in? Probably the worst stock trigger I've ever felt! Others have mentioned the machining is horrible. The chambers are short. I'm wondering who shoots these guns as is from the factory? Can't imagine they shoot them well! Link to comment Share on other sites More sharing options...
CHA-LEE Posted December 30, 2016 Share Posted December 30, 2016 I don't know why EAA/Tanfo let the guns out the door with these issues. It was always like that when I shot them for many years. I just got use to needing to tune them up as needed to make them competition ready and reliable. Nearly all off the shelf guns need a trigger job anyway to make the trigger half way decent, so I don't see that as being an issue that is specific to EAA/Tanfo. Link to comment Share on other sites More sharing options...
MemphisMechanic Posted December 30, 2016 Share Posted December 30, 2016 (edited) Look at the price your average Witness went for in the USA before Grauffel and Stoeger made the Stock models popular. They're $250-450 for a reason. 14 pound triggers and questionable reliability. Edited December 30, 2016 by MemphisMechanic Link to comment Share on other sites More sharing options...
johnbu Posted December 30, 2016 Share Posted December 30, 2016 Yeah... but these are "shiny", and the speed knob goes to 11 ! 1 hour ago, MemphisMechanic said: Look at the price your average Witness went for in the USA before Grauffel and Stoeger made the Stock models popular. They're $250-450 for a reason. 14 pound triggers and questionable reliability. Link to comment Share on other sites More sharing options...
johnbu Posted December 30, 2016 Share Posted December 30, 2016 I use a new-ish flat file about 1/4" wide with fine teeth. There are whole bunch in the tool roll around, nothing special. 3 hours ago, emjei said: Which file ?? Sent from my SAMSUNG-SM-G900A using Tapatalk Link to comment Share on other sites More sharing options...
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