konkapot Posted August 28, 2020 Share Posted August 28, 2020 .40 caliber Trojan. New to me. Runs 100% with my reloaded ammo. Makes about 167pf, OAL is 115. Runs great with all magazines. 12lb recoil spring. With factory duty ammo at bout 185PF, there are feeding problems. Extraction is fine, ejection is fine, but the next round is jumping in FRONT of the extractor. Does this 5 times per 100 rounds with various mags. My theory is that the increased recoil from the stouter ammo is causing this, but I would welcome better theories. Link to comment Share on other sites More sharing options...
jwhittin Posted August 29, 2020 Share Posted August 29, 2020 More likely to be OAL and/or bullet type (shapes). Is there anything you can surmise from what data you have now? Link to comment Share on other sites More sharing options...
konkapot Posted August 29, 2020 Author Share Posted August 29, 2020 The factory ammo is much shorter and has a much bigger/flatter head (meplat?) Some have been Gold Dot hollowpoints that have a pretty big cavity. Standard OAL is 1.13x if I remember correctly. Link to comment Share on other sites More sharing options...
konkapot Posted August 29, 2020 Author Share Posted August 29, 2020 Just double checked OAL; factory is 1.12 for this ammo and mine are 1.16 Link to comment Share on other sites More sharing options...
jwhittin Posted August 29, 2020 Share Posted August 29, 2020 (edited) Reread Original post. what do you mean by this? 4 hours ago, konkapot said: ... but the next round is jumping in FRONT of the extractor. What is the end result? Stove piped round? Is the round nose diving into the ramp? a picture would be helpful. Or a better description. Edited August 29, 2020 by jwhittin Link to comment Share on other sites More sharing options...
RePete Posted August 29, 2020 Share Posted August 29, 2020 Are you still running the 12# recoil spring with the factory loads? IIRC correctly the factory spring is 18#. Link to comment Share on other sites More sharing options...
Joe4d Posted August 29, 2020 Share Posted August 29, 2020 Are you using 40 or 10mm magazines ? If the former, you are getting close to max OAL for spacer plate mags. You have just discovered why 40 1911's have never been a big seller. They tend to not run so well on factory length hollow points. Try a different brand magazine. Mine would feed factory ball American eagle with metalform,, but not Tripp. I went to 10mm mags and long loads though (1.180) that would work in my other 40's. Pretty much why I havent bought a Ruger PCC 40, as all my ammo is long loaded. Link to comment Share on other sites More sharing options...
konkapot Posted August 29, 2020 Author Share Posted August 29, 2020 End result is the back of the casing is in direct contact with the front of the extractor. The front of the round is being pressed against the barrel; couldn't get a super clear look at it, but it looked like the nose was pressed against the ramp, or just inside the chamber. I've always heard about Trojans and problems with factory ammo/hollowpoints but never experienced it with any previous Trojan. Mags are Tripp 10mm mags. Pics would have been ideal, but my phone was 100+ yds away, and I was running out of time. Switched to my reloaded ammo and finished the session. Pete i think factory is 14 but will double check. Too light a spring has the slide coming back faster and returning slower. In my "brain" that shouldn't be causing this...? Link to comment Share on other sites More sharing options...
zzt Posted August 29, 2020 Share Posted August 29, 2020 Saw this thread after I replied to your PM. What this sounds like is the wide meplat is hitting the feed ramp, stopping the feed. Then the slide rebounds back a tad from the shock. The back of the case continues to rise as the slide rebounds. Then the slide closes again, but the case is too high at that point to slip under the extractor. A heavier recoil spring is still necessary if you continue to shoot 185+ PF, but it will not cure your problem. Tripp mags are designed to work with GI standard mag catches. The 10-round mags are heavier when fully loaded and drop a tiny bit more. The only way to solve this particular problem is to install a mag catch with a .010" or .020" higher shelf. Several people make the +.020" catches. I can't recall at the moment who makes the + .010". It might be Dawson. Link to comment Share on other sites More sharing options...
RePete Posted August 29, 2020 Share Posted August 29, 2020 7 hours ago, konkapot said: Pete i think factory is 14 but will double check. Too light a spring has the slide coming back faster and returning slower. In my "brain" that shouldn't be causing this...? My Trojan 40 was an 18# spring from the factory. Link to comment Share on other sites More sharing options...
konkapot Posted August 29, 2020 Author Share Posted August 29, 2020 Shot a match today with MY ammo that previously worked fine. Will be putting a heavier recoil spring in and testing. Link to comment Share on other sites More sharing options...
troupe Posted August 30, 2020 Share Posted August 30, 2020 Heavier spring should fix the problem Link to comment Share on other sites More sharing options...
konkapot Posted August 30, 2020 Author Share Posted August 30, 2020 Surprisingly enough it did not. Went up to a 14lb spring. In the middle picture it LOOKED like the extractor was too tight, but in other cases I (again) have a live round wedged in FRONT of the extractor. Ammo is factory hollowpoint ammo. Does not appear to be a bullet profile issue. Link to comment Share on other sites More sharing options...
konkapot Posted September 8, 2020 Author Share Posted September 8, 2020 New recoil spring, new extractor. Same mags. Problem continue but less often. ZZT I emailed you. Link to comment Share on other sites More sharing options...
ltdmstr Posted September 10, 2020 Share Posted September 10, 2020 Hard to say without seeing it in person, but my guess is it's a combination extractor and feed ramp/magazine/mag catch issues. First, I would stick with the 14 lb spring for 185 pf, at least until you get it running. Second, I would check the extractor hook and tension to see if those are correct (even if new, still needs to be tuned). Third, I would check the barrel ramp profile, which also factors in your magazine tuning and mag catch. On the third point, I use the Dawson mag catch with higher shelf for all my 9s and 40s and never have any problems. Also, before you start altering anything like ramp profile, try running some other factory ammo with similar pf and see if that works. Gold dots cause problems with lots of guns. Link to comment Share on other sites More sharing options...
konkapot Posted September 10, 2020 Author Share Posted September 10, 2020 My last post was light on details. "New" extractor was working great in a limited gun. Was installed onto this gun and has passed all the usual tests. I triple checked the extractor hook; no obvious burrs but hit it quickly with some Flitz. Also hit the feed ramp with a felt wheel and some Flitz. Looked for but could not see any definitive impact point on the ramp. New mags came today; will be testing tomorrow. Also trying some different factory ammo that is NOT Gold Dot. I did have some problems with my Blue Bullet reloads early on, so switching ammo is not likely to dramatically improve anything. I was pretty sure that it was Dawson who made that mag catch but didn't see anything on his site. If the problem continues I'll give them a call Link to comment Share on other sites More sharing options...
kellymc Posted September 10, 2020 Share Posted September 10, 2020 I had a similar issue with my Trojan and some Tripp 9 round 10mm mags. The 8 and 9th round would nose dive. I install a higher mag catch from EGW which helped . But it was after I tweeted the tripp followers did it become 100%. This may have been the first time one of my experiments worked and I didn't ruin something . Link to comment Share on other sites More sharing options...
konkapot Posted September 10, 2020 Author Share Posted September 10, 2020 What did you have to do to the followers? Link to comment Share on other sites More sharing options...
kellymc Posted September 11, 2020 Share Posted September 11, 2020 My problem was the 9th round and often the 8th nose diving. I pushed a bullet like the picture till I felt I had changed the angle. Have not had another nose dive since Link to comment Share on other sites More sharing options...
konkapot Posted September 12, 2020 Author Share Posted September 12, 2020 Brand new Tripp mags and so far 400 trouble free rounds. Link to comment Share on other sites More sharing options...
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