hermes_actual Posted January 16, 2023 Share Posted January 16, 2023 Having an issue with failure to feed. Using Blue Bullets 135 gn TC loaded to 1.08". The first round is getting stuck on the feed ramp when trying to chamber from a loaded mag. Happens when releasing the slide stop or when racking the slide. Doesn't occur during subsequent rounds. I can tap the back of the slide to get it to feed. Happening in two guns. Have about 500 rounds fired per each. Should I polish feed ramps? Load longer? I really don't want to change bullets. Any advice appreciated! Link to comment Share on other sites More sharing options...
CHA-LEE Posted January 16, 2023 Share Posted January 16, 2023 The guidance in this thread applies to pretty much all Semi-Auto pistols. Link to comment Share on other sites More sharing options...
hermes_actual Posted January 16, 2023 Author Share Posted January 16, 2023 11 minutes ago, CHA-LEE said: The guidance in this thread applies to pretty much all Semi-Auto pistols. Thanks @CHA-LEE for the comprehensive information. You've given me the resources I need to attack the problem! Link to comment Share on other sites More sharing options...
hermes_actual Posted January 18, 2023 Author Share Posted January 18, 2023 Bullet appears to be contacting ramp too low. Magazines are new factory. Taylor Freelance +4 extensions with factory springs and followers. Link to comment Share on other sites More sharing options...
Johnny_Chimpo Posted January 18, 2023 Share Posted January 18, 2023 (edited) 16 minutes ago, hermes_actual said: Bullet appears to be contacting ramp too low. Magazines are new factory. Taylor Freelance +4 extensions with factory springs and followers. A modern semiauto pistol that is (or is a derivation of) designed as a service weapon (as most striker fired pistols these days are) is designed and manufactured to have extremely reliable feeding regardless of bullet profile. In your case the only deviation from the original design (that you have reported) is the extended floor plates. Does the problem go away when you use unmodified magazines? If it does, my immediate suspicion is not enough spring force acting on the follower. The OEM spring's length is designed to work with the internal length of the OEM magazine. I'm not going to jump into a spring engineering discussion, just hit the "I believe" button on this. Depending on how much design margin there is in the OEM spring it might work with extended floor plates or it might not. If your pistol feeds fine with OEM magazines, I would do absolutely nothing to the feedramp just yet. I'd first try to find longer springs and experiment with that to see if you can fix the problem. Edited January 18, 2023 by Johnny_Chimpo Link to comment Share on other sites More sharing options...
hermes_actual Posted January 18, 2023 Author Share Posted January 18, 2023 1 hour ago, Johnny_Chimpo said: A modern semiauto pistol that is (or is a derivation of) designed as a service weapon (as most striker fired pistols these days are) is designed and manufactured to have extremely reliable feeding regardless of bullet profile. In your case the only deviation from the original design (that you have reported) is the extended floor plates. Does the problem go away when you use unmodified magazines? If it does, my immediate suspicion is not enough spring force acting on the follower. The OEM spring's length is designed to work with the internal length of the OEM magazine. I'm not going to jump into a spring engineering discussion, just hit the "I believe" button on this. Depending on how much design margin there is in the OEM spring it might work with extended floor plates or it might not. If your pistol feeds fine with OEM magazines, I would do absolutely nothing to the feedramp just yet. I'd first try to find longer springs and experiment with that to see if you can fix the problem. Great idea. Taylor Freelance says their extensions work with factory springs but, you're right, I should check without the extensions and with extension and a longer/stronger spring. Thank you! Link to comment Share on other sites More sharing options...
motosapiens Posted January 18, 2023 Share Posted January 18, 2023 usually weak springs are not an issue for the first round out of the magazine. it sounds like it only happens when you load the magazine all the way up. Is that last round pretty tight to get in, and the magazine harder to seat? 1.08 is pretty short with a flatpoint bullet. If your chamber has more room, it might be worth trying a bit longer Link to comment Share on other sites More sharing options...
CHA-LEE Posted January 19, 2023 Share Posted January 19, 2023 (edited) The Bullet Tip Hit Pattern is inconsistently up and down the whole feed ramp. An inconsistent "Vertical Point" of the top round in the magazine is usually due to brass sidewall straightness issues. For example, if you use an undersize resizing die it will make the sidewall of the brass a coke bottle shape. Coke bottle shaped brass causes very inconsistent ammo stacking within the mag. It also causes high spots for the rim of the case to catch on as the ammo slides across one another during feeding. An easy way to test this is to load up a magazine full then look at the top few rounds. is the top round laying completely flat against the round below it? Or are the bullets fanned out with only the very base of the brass touching one another? If the bullets are fanned out, then it is 100% a brass sidewall straightness issue. Replacing the mag spring may make it feed a little better, but if the rounds are not stacking on top of one another correctly it doesn't matter what spring or follower you are using. Its always going to have an inconsistent Vertical Point of the top round during feeding. The vast majority of the time, these kind of feeding issues are 100% due to poorly made reloaded ammo. People think that they can reload ammo in any manner and it will magically work. That isn't the case. Edited January 19, 2023 by CHA-LEE Link to comment Share on other sites More sharing options...
TONY BARONE Posted January 19, 2023 Share Posted January 19, 2023 With a plus 4 extension I would think you would need a longer spring than factory. Link to comment Share on other sites More sharing options...
GigG Posted January 19, 2023 Share Posted January 19, 2023 1 hour ago, TONY BARONE said: With a plus 4 extension I would think you would need a longer spring than factory. I'm using a factory spring with TF +4 extensions. According to their website they are supposed to work with stock springs. Link to comment Share on other sites More sharing options...
hump Posted January 20, 2023 Share Posted January 20, 2023 I had to replace my springs with Wolfe HD springs when I went to the +4 extensions. Link to comment Share on other sites More sharing options...
shred Posted January 20, 2023 Share Posted January 20, 2023 If you load up a mag, then slowly with your fingers pull the round out of the mag bullet-first, does the next round 'snap' into place immediately after it's clear? If not you need more mag spring. Link to comment Share on other sites More sharing options...
bigtimelarry Posted January 20, 2023 Share Posted January 20, 2023 1 hour ago, hump said: I had to replace my springs with Wolfe HD springs when I went to the +4 extensions. Which Wolff Springs did you order ? They don't show Canik springs.. I wan't to order some too. Link to comment Share on other sites More sharing options...
hump Posted January 20, 2023 Share Posted January 20, 2023 28 minutes ago, bigtimelarry said: Which Wolff Springs did you order ? They don't show Canik springs.. I wan't to order some too. Springs for M&P mags Link to comment Share on other sites More sharing options...
hump Posted January 20, 2023 Share Posted January 20, 2023 Just now, hump said: Springs for M&P mags https://taylorfreelancestore.com/wolff-spring-for-canik-m-p-old-hk-vp9/p30-hk-45-140mm-3-to-5-/ Link to comment Share on other sites More sharing options...
bigtimelarry Posted January 20, 2023 Share Posted January 20, 2023 12 hours ago, hump said: https://taylorfreelancestore.com/wolff-spring-for-canik-m-p-old-hk-vp9/p30-hk-45-140mm-3-to-5-/ Thank You... Link to comment Share on other sites More sharing options...
BillGarlandJr Posted January 23, 2023 Share Posted January 23, 2023 TP9 sfx The Blue Bullets 135gr TC over 3.6gr Prima V OAL 1.115” Canik 18rd magazines with Henning +4 basepads and Grams spring and follower kit. I was running into a similar issue to that of the OP, except I was getting a failure to feed on the next to last round in all four of my mags set up with the Henning basepads. This was with the factory recoil spring assembly. Ended up switching to a Wolff guiderod for the Glock along with a 15lb recoil spring (as per InGodWeTrust’s recommendation in his thread), and that seemed to solve the issue. More testing to do before I can say this is for sure the fix. Link to comment Share on other sites More sharing options...
JNatoli Posted January 27 Share Posted January 27 My new replacement Rival-S chrome has no over-insertion issues but is plagued with Nosediving rounds with new factory mags, I have had 12 in 400 rounds, it is very disheartening, I have an uncaptured guide rod and spring coming from Rune tactical, and installed the sprinco 29newton striker spring. Anyone have feedback on the Rune Tactical stuff? Link to comment Share on other sites More sharing options...
WxGuy Posted January 27 Share Posted January 27 When I had the Rival S, I found the flat tipped coated 147s were an issue. Round noses were good. FMJ or plated the best. I opened up the the magazine lips ever so slightly and had the best results. A spring made for the extended mags has to be run. Stock spring and extension are no bueno. Good luck! Link to comment Share on other sites More sharing options...
hermes_actual Posted February 26 Author Share Posted February 26 (edited) Anyone know if the Wolff high power springs will work with Grams followers? https://taylorfreelancestore.com/wolff-spring-for-3-to-5-canik-m-p-old-hk-vp9-p30-hk-45-140mm-extensions/ EDIT: Robin Taylor confirmed they will not work. Edited February 27 by hermes_actual Link to comment Share on other sites More sharing options...
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