Jackpine Savage Posted October 31, 2014 Share Posted October 31, 2014 I loaded 10,000 9mm on my LNL and only 2 failed to go bang at the tail end probably due to high primers. I was using Magtech primers and mostly Remington brass. Now I switched over to Tula primers and mixed brass and high primers are driving me crazy. It seems WIN and S&B brass are the worst. I've got the shims on order, hopefully that will help. Link to comment Share on other sites More sharing options...
xrayfk05 Posted October 31, 2014 Share Posted October 31, 2014 If it's S&B brass marked "9mm luger" ream the primer pocket or ditch them to save yourself a lot of aggravation. The S&B brass marked" 9x19" are good though. Link to comment Share on other sites More sharing options...
mannparks Posted January 10, 2015 Share Posted January 10, 2015 I also had the snaping with 9mm case full . Powder all over the place. Called hornaday and adjusting the pawls helped. Link to comment Share on other sites More sharing options...
Shmella Posted October 6, 2015 Share Posted October 6, 2015 I did the shimming and it got be .003" below flush with my Federal primers. I have just barely a bit of drag I will most likely reduce my shim by .0005 or maybe .001 For my testing/experimenting I wanted to remove the most slop. I bought a S&W929 revo and plan on installing an Apex Tactical extended firing pin. They state you need to seat Federal primers .007"-.010" below flush. The next step I did was to take my primer seater out of the press and chuck it in a drill and use a hand file and trim off a few thousands of an inch so when I screw it in my press it just touches the primer sled. Now my primers are .007-.008" below flush. FWIW-Adding a dime to the base of the press does nothing basically. the limiting factor when you do that is once that piston travels up and bottoms out on that e-ring attached to the piston it will not go higher into the primer pocket. This is exactly what ive been looking for! I have a 929 with an action job tuned down to 6lbs and was getting some light strikes and I believe it was primers not being seated enough. No problems in anything other than the revo. Thanks for posting that fix Link to comment Share on other sites More sharing options...
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