dogtired Posted March 27, 2017 Share Posted March 27, 2017 I finally got to the range and did some testing with this set up. I must say the double action pull is smooth. I did have 3-4 light strikes out of 5 17 round mags. Should I shoot it some more and see if it corrects or go back to a heavier hammer spring? I am using the factory firing pin. Link to comment Share on other sites More sharing options...
johnbu Posted March 27, 2017 Author Share Posted March 27, 2017 I would redo polish of the firing pin channel. Verify the firing pin block is moving out of the way. Polish the pins and holes in the hammer. Then remeasure primer depth and plunk/thump/spin/dump test all ammo. Then reshoot. Who's primers are you using? What bullet? Oal? Etc. Link to comment Share on other sites More sharing options...
dogtired Posted March 27, 2017 Share Posted March 27, 2017 That is easy enough. I probably did not spend much time on the fp channel anyway. Winchester primers, 124 gr extreme rn, oal escapes me currently. Link to comment Share on other sites More sharing options...
MemphisMechanic Posted March 27, 2017 Share Posted March 27, 2017 Make sure all of your ammo passes Plunk and spin - particularly if the barrel hasn't been reamed. Which spring are you using? I don't recall what is in your gun, but with a Titan and Bolo setup... A 13lb PD spring runs Winchesters perfectly in my gun. Link to comment Share on other sites More sharing options...
dogtired Posted March 27, 2017 Share Posted March 27, 2017 14# Link to comment Share on other sites More sharing options...
MemphisMechanic Posted March 27, 2017 Share Posted March 27, 2017 (edited) Wolff 14 or PD? What else is in the gun? PD firing pin spring factory? a Titan or Delta hammer... or factory? Bolo? Factory firing pin or Henning? I'm a big advocate for removing the firing pin block until you're done tuning the gun. I shot local matches for more than three months without it. Just to delete it as a possible problem to troubleshoot. A gun that has a reamed chamber, Titan/Bolo etc and factory of PD firing pin... can generally run *fully* seated Winchester primers on a 12 pound PD spring. Some prefer to run a 13 for insurance. With a more factory-optioned gun, a PD 14 is probably a good choice. I suggest you carefully, meticulously check your primer depths first. With these guns... flush is not seated well enough. That's how you load for a 1911 or striker fired gun. With a DA/DS gun that has light springs? Flush is a high primer waiting to go click. If you're chasing a light trigger, bury those Winchesters well below flush. If you're not chasing a light trigger and want more striking force with less QC needed on your ammo, switch to a heavier hammer spring. Edited March 27, 2017 by MemphisMechanic Link to comment Share on other sites More sharing options...
dogtired Posted March 28, 2017 Share Posted March 28, 2017 I just bought the parts from PD mentioned by the OP. Otherwise stock. Link to comment Share on other sites More sharing options...
johnbu Posted March 28, 2017 Author Share Posted March 28, 2017 28 minutes ago, dogtired said: I just bought the parts from PD mentioned by the OP. Otherwise stock. The gun i did with those parts has been good with winchester primers. it has a well fit FPB and a "decent" first pass polish. Detail was given to pivots, pins and holes to remove drag from the hammer fall. show yours some shine and it will be fine ! Link to comment Share on other sites More sharing options...
dogtired Posted April 1, 2017 Share Posted April 1, 2017 I did some more polishing and went out today with a couple of boxes of cheap factory ammo and the problem was worse. I came home and stuck an Extreme medium in and will give it a go that way. Link to comment Share on other sites More sharing options...
NWfront Posted April 2, 2017 Share Posted April 2, 2017 (edited) I am now 100% with the 14lb spring and properly seated Win primers. My polish job is nothing special. I think the key is having the PD firing pin. Edited April 2, 2017 by NWfront Link to comment Share on other sites More sharing options...
dogtired Posted April 2, 2017 Share Posted April 2, 2017 14 definately feels better than the Extreme medium (15.5). But the medium fired everything. Link to comment Share on other sites More sharing options...
johnbu Posted April 2, 2017 Author Share Posted April 2, 2017 2 hours ago, dogtired said: I did some more polishing and went out today with a couple of boxes of cheap factory ammo and the problem was worse. I came home and stuck an Extreme medium in and will give it a go that way. You may want to view MemphisMechanic's video tutorials. See if there is anything you're missing. Link to comment Share on other sites More sharing options...
MemphisMechanic Posted April 2, 2017 Share Posted April 2, 2017 More importantly, check the ammo first. Use the ability of the calipers to measure hole depth at the butt end of the handle to see how deeply these primers are seated. If they're .005" down or deeper, a PD 14 should set them off. If they're higher than that, you'll need more hammer spring to both fully seat the primer and detonate it. Link to comment Share on other sites More sharing options...
dogtired Posted April 2, 2017 Share Posted April 2, 2017 Good video. I will spend some more time with the dremel. I need to load some ammo, bone dry currently. Link to comment Share on other sites More sharing options...
dogtired Posted April 4, 2017 Share Posted April 4, 2017 You guys are a bad influence! I tore down my Lim Pro again, and followed with a RIA Tactical, them a M&P22. Link to comment Share on other sites More sharing options...
johnbu Posted April 4, 2017 Author Share Posted April 4, 2017 Doing one gun is like eating one potato chip! Link to comment Share on other sites More sharing options...
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