B_RAD Posted January 15, 2017 Share Posted January 15, 2017 27 minutes ago, johnbu said: Everything is better with the Da Pack! Go Cowboys! Link to comment Share on other sites More sharing options...
ryridesmotox Posted January 15, 2017 Share Posted January 15, 2017 (edited) Can't spell Dallas without two L's well 3 actually but hey who's counting Edited January 15, 2017 by ryridesmotox Link to comment Share on other sites More sharing options...
johnbu Posted January 15, 2017 Share Posted January 15, 2017 Cough cough (back home to watch from the couch) cough cough 22 minutes ago, B_RAD said: Go Cowboys! Link to comment Share on other sites More sharing options...
B_RAD Posted January 15, 2017 Share Posted January 15, 2017 2 minutes ago, johnbu said: Cough cough (back home to watch from the couch) cough cough One of us is gonna be pissed! Link to comment Share on other sites More sharing options...
johnbu Posted January 15, 2017 Share Posted January 15, 2017 Doubtful! It's just a game. Link to comment Share on other sites More sharing options...
Nathanb Posted January 15, 2017 Author Share Posted January 15, 2017 So for the first time since I bought it I actually got to get it outside and get some rounds down range. 200 rounds later it was flawless except one failure to feed which I believe was my thumb on the slide. I did see something of concern though. these made 134 power factor in my glock 34. The primers from all of them look like this the firing pin has a very distinctive mark on the primers and they are flat. Any idea what could be causing this? Is it anything to worry about? I'm running the pd firing pin, spring and 13 lb hammer spring for reference. I don't know if I have an issue since these are federal primers or what but I've always been. Told flat primers is a sign of over pressure Link to comment Share on other sites More sharing options...
OPENB Posted January 15, 2017 Share Posted January 15, 2017 Them are some flat primers! Way over-pressure signs. What is the load & OAL? The fp is dragging on the primer. The gun is unlocking while the fp is still in contact with the primer. Link to comment Share on other sites More sharing options...
Nathanb Posted January 15, 2017 Author Share Posted January 15, 2017 (edited) Thing is I can go put that exact same round in my glock 34 and it won't flatten at all. I'll go down and grab some of that brass in a minute. So if it's a pressure sign from the round why not in any gun? load is 3.5 grains of maxam csb-5 loaded to 1.138 with a blue bullet 147 rn. Edited January 15, 2017 by Nathanb Link to comment Share on other sites More sharing options...
Nathanb Posted January 15, 2017 Author Share Posted January 15, 2017 (edited) ive fired thousands of these through my glock as well as my mpx and xdm. None show pressure signs or flat primers Edited January 15, 2017 by Nathanb Link to comment Share on other sites More sharing options...
ryridesmotox Posted January 15, 2017 Share Posted January 15, 2017 That's crazy. Have you had the barrel teamed out yet? And have you developed the load for the tanfo? Or is it the glock load? Link to comment Share on other sites More sharing options...
Nathanb Posted January 15, 2017 Author Share Posted January 15, 2017 That's post ream. And this is the first time I had it out. It's accurate as hell. I'm not really sure where to go from here. I need to tear down and see if there is anything funny going on Link to comment Share on other sites More sharing options...
ryridesmotox Posted January 15, 2017 Share Posted January 15, 2017 What was your Chrono reading? Is this the Glock loading? Different loads respond differently in different guns, heck different barrels. Link to comment Share on other sites More sharing options...
Nathanb Posted January 15, 2017 Author Share Posted January 15, 2017 I actually picked he chrono up and put it back so I don't have that piece of info but yes it is the same exact load I load for the 34. I can shoot them back to back without any load changes. I run it through a handful of other guns and not a single sign of anything funny. Now I'm perplexed as to what it could be Link to comment Share on other sites More sharing options...
johnbu Posted January 15, 2017 Share Posted January 15, 2017 The brass could be slamming into the breech face, flattening the primer. Link to comment Share on other sites More sharing options...
Nathanb Posted January 16, 2017 Author Share Posted January 16, 2017 Which would be indicative of what John? I pulled my barre just to see how the rounds plunked If I lay my caliper so it is flat across the back side of the case I get .130 to the barrel at the lowest point in the step. I thought it may be excess headspace but I'm not really sure as the headspace itself shouldn't have changed with a ream. Link to comment Share on other sites More sharing options...
ryridesmotox Posted January 16, 2017 Share Posted January 16, 2017 Well, if the head of the cartridge was against the breechface before and then now its actually seated in the chamber, yea that's adjusting spacing a bit rofl, form the amazing tanfo machining. Try dropping a live round 'oh the horror' in there and seeing if it is loose or something against the breechface maybe? I dunno, I'm kind of stumped myself. But I've had 2 kids projectile vomiting on me all week and have gotten no sleep. my mind is gone Link to comment Share on other sites More sharing options...
johnbu Posted January 16, 2017 Share Posted January 16, 2017 20 hours ago, B_RAD said: One of us is gonna be pissed! Which one ? Lol Great game.! Link to comment Share on other sites More sharing options...
MemphisMechanic Posted January 16, 2017 Share Posted January 16, 2017 (edited) Oh also what recoil spring is in this gun? Just curious if dropping the factory one in would eliminate the teardrop shape firing pin impression by giving it a few more bajillionths of a second in battery. Can't see how that would affect the flattened look though. Edited January 16, 2017 by MemphisMechanic Link to comment Share on other sites More sharing options...
Nathanb Posted January 16, 2017 Author Share Posted January 16, 2017 It was a 9 lb recoil spring. I can try the 10 next weekend Link to comment Share on other sites More sharing options...
B_RAD Posted January 16, 2017 Share Posted January 16, 2017 46 minutes ago, johnbu said: Which one ? Lol Great game.! Me! Link to comment Share on other sites More sharing options...
johnbu Posted January 16, 2017 Share Posted January 16, 2017 ^ lol. Link to comment Share on other sites More sharing options...
MemphisMechanic Posted January 16, 2017 Share Posted January 16, 2017 (edited) Skip the 10 and go all the way back to stock, man! If issues go away, THEN fiddle around with lightweight aftermarket stuff. Edited January 16, 2017 by MemphisMechanic Link to comment Share on other sites More sharing options...
johnbu Posted January 16, 2017 Share Posted January 16, 2017 Just a thought... Inspect your locking lugs on the barrel and slide. They should be sharp edged. Link to comment Share on other sites More sharing options...
Nathanb Posted January 16, 2017 Author Share Posted January 16, 2017 I'll try the recipe spring maybe it's unlocking too early and that's causing it but I think it may be a stretch. The locking lugs are clean. I did think they were getting chewed but after I wiped it off it was just dirty. Link to comment Share on other sites More sharing options...
MemphisMechanic Posted January 16, 2017 Share Posted January 16, 2017 I think it's a stretch too. But it's beyond simple to check, and free. Link to comment Share on other sites More sharing options...
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