Bwilmot Posted January 29, 2018 Share Posted January 29, 2018 (edited) What causes this kind of hit to primer ?? Gun is sps vista short. 9major. I’ve been having light strikes due to a gun smith mistake. He swears it’s primer flow and brass is getting stuck in firing pin window and that this is causing light hits. I’m. Not sure the main spring size right now. Edited January 29, 2018 by Bwilmot Link to comment Share on other sites More sharing options...
Bwilmot Posted January 29, 2018 Author Share Posted January 29, 2018 (edited) 2 minutes ago, Bwilmot said: What causes this kind of hit to primer ?? Gun is sps vista short. 9major. 7.2 WAC under 115 concave base fmj @ 1.155 Edited January 29, 2018 by Bwilmot Link to comment Share on other sites More sharing options...
jcc7x7 Posted January 29, 2018 Share Posted January 29, 2018 Try replacing your firing pin spring Link to comment Share on other sites More sharing options...
Bwilmot Posted January 29, 2018 Author Share Posted January 29, 2018 38 minutes ago, jcc7x7 said: Try replacing your firing pin spring I’ve got one ☝️ on the way Link to comment Share on other sites More sharing options...
Bwilmot Posted January 29, 2018 Author Share Posted January 29, 2018 42 minutes ago, jcc7x7 said: Try replacing your firing pin spring But it’s not every primer that looks like this it’s 1 in 20 or so that look like this Link to comment Share on other sites More sharing options...
chevrofreak Posted January 29, 2018 Share Posted January 29, 2018 Don't load 9major in xtreme brass. The internal volume is smaller and will raise pressure. Link to comment Share on other sites More sharing options...
Bwilmot Posted January 29, 2018 Author Share Posted January 29, 2018 7 hours ago, chevrofreak said: Don't load 9major in xtreme brass. The internal volume is smaller and will raise pressure. Thank you. I try to cull as many as possible. Mostly I’m looking for the cases with the internal step in the case. I toss those in the scrap. Link to comment Share on other sites More sharing options...
theWacoKid Posted January 29, 2018 Share Posted January 29, 2018 I've loaded a bunch of major in x-treme brass now. The case volume is on the lower end, and I load it all together and adjust accordingly. The combo of parts in some guns is going to lead to some primer extrusion into the firing pin hole. I've seen this a lot, but never found it to be the cause of any real problems. I would look elsewhere, but do make sure the firing pin hole and channel is clear and burr free. Link to comment Share on other sites More sharing options...
chevrofreak Posted January 29, 2018 Share Posted January 29, 2018 9 hours ago, Bwilmot said: Thank you. I try to cull as many as possible. Mostly I’m looking for the cases with the internal step in the case. I toss those in the scrap. I load 9gr of 3N38 under a 115jhp and the xtreme cases are so full that I get powder spillage. They are a good casing, but, as the previous poster said, adjust accordingly. If you're loading mixed brass in 9major and are running on the ragged edge, it could be enough to cause problems. Link to comment Share on other sites More sharing options...
Bwilmot Posted January 29, 2018 Author Share Posted January 29, 2018 I load 9gr of 3N38 under a 115jhp and the xtreme cases are so full that I get powder spillage. They are a good casing, but, as the previous poster said, adjust accordingly. If you're loading mixed brass in 9major and are running on the ragged edge, it could be enough to cause problems. I’m only running 7.2 autocomp under my 115 so not really the ragged edge. 170pf 1470-1480fpsSent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
mfizzy Posted February 25, 2018 Share Posted February 25, 2018 I had an issue with light strikes and primer flow with my SPS Vista. Moved to small rifle primers and issue is solved. Link to comment Share on other sites More sharing options...
Broncman Posted February 26, 2018 Share Posted February 26, 2018 Extended firing pin in my Open 2011 solved those issues in my gun. Link to comment Share on other sites More sharing options...
Bwilmot Posted February 26, 2018 Author Share Posted February 26, 2018 2 hours ago, Broncman said: Extended firing pin in my Open 2011 solved those issues in my gun. I just installed one and it’s working great Link to comment Share on other sites More sharing options...
Darthrader18 Posted February 26, 2018 Share Posted February 26, 2018 Glad to see you got a fix for your problem did you change the spring as well? Link to comment Share on other sites More sharing options...
Bwilmot Posted February 27, 2018 Author Share Posted February 27, 2018 19# main spring ,new FP spring and Dawson extended FP Link to comment Share on other sites More sharing options...
Bwilmot Posted February 28, 2018 Author Share Posted February 28, 2018 On 2/24/2018 at 7:59 PM, mfizzy said: I had an issue with light strikes and primer flow with my SPS Vista. Moved to small rifle primers and issue is solved. What main spring wieght are you running in your sps vista.? How do you like it ? This is mine I really like it. It runs like a champ Link to comment Share on other sites More sharing options...
mfizzy Posted March 3, 2018 Share Posted March 3, 2018 Running factory main spring. Did you install the grip? I tried the same one, but it wouldn't fit. I just installed it on my Edge instead. The plastic magwell sucks. Link to comment Share on other sites More sharing options...
Bwilmot Posted March 3, 2018 Author Share Posted March 3, 2018 Yes I installed it everything fit but the main spring and also had to use a sti bushing and screws on the front grip screw. I couldn’t use the main spring keeper pin so I installed the pin backwards and then pulled the pin when it was assembled. I’m running a 19lb main with a commander 10lb variable recoil spring. Also installed extended firing pin and aftec extractor. The gun just runs and runs ? Link to comment Share on other sites More sharing options...
Bwilmot Posted March 3, 2018 Author Share Posted March 3, 2018 5 hours ago, mfizzy said: Running factory main spring. Did you install the grip? I tried the same one, but it wouldn't fit. I just installed it on my Edge instead. The plastic magwell sucks. What charge handle is that ? Looks like the one on my shotgun lol Link to comment Share on other sites More sharing options...
mfizzy Posted March 4, 2018 Share Posted March 4, 2018 Its from SPS. Ordered it on their website. Link to comment Share on other sites More sharing options...
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