sizing die problem.

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My guess? Glock bulge not getting completely ironed out. This is a common issue guys have with using range brass. SOMETIMES, but not all the time, you can eliminate it by "cam over" on your press. Thats when you screw the die until it touches the shell plate and then give it an additional quarter turn. This works on single stage presses but progressives can be damaged by it so be careful. The other option is to get a roll sizer. The slow option that some guys have resorted to is to run all your sized cases through a bulge buster die before loading.
 
I just looked at the pictures of your load. As the owner of RMR I can tell you that it is NOT an RMR brand bullet. It may have been another brand we were selling when we couldn't make enough of our own. I've done the troubleshooting for thousands of guys having issues like this. It is almost always a glock bulge issue and never a bullet issue unless it's seated so long the bullet goes through the gauge or if it's seated so short it bulges out the thicker part of the case wall. We supply thousands of competitive shooters who have the same issues you're struggling with and the only tried and true way to fix it is to get a roll sizer. That said, usually if a round goes mostly into a gauge, it will most likely go right into the chamber. You'll just want to make sure your OAL doesn't cause the bullet to get stuck in the rifling. My opinion is the longer the better so long as it fits the chamber.
 
I'd say that about 98% of this stuff is new Winchester 9mm that I bought several years ago. The local (only) reloading store had a big shipment come in and I bought 10 X 100 case bags. I'm pretty picky about picking up range brass. I actually lay down a couple of tarps to catch it. Fold 'em in half and pour into the bucket, and we're good. I got really sick and tired of all the .40 brass that was getting mixed in from whoever it is out there doesn't understand the meaning of "Police your brass"
And just to make everyone here feel not TOO bad about powder prices. A reloader friend of mine in Canada said his local shop got in a shipment of powder.

$89.95 a lb.
 
I bought most of these particular 9mm FMJ's from you guys when you were really backlogged several months ago. I picked up 2K 9mm FMJ from you guys about 2 weeks ago. I'll give them a try and see what happens. I think 1k got dumped in the 9mm bin with the older stuff, but I'm pretty sure the other bag is still unopened. That might explain why some sit perfect in the case gauge and a lot don't. So far, the 115gr FMJ at 1.12 OLA do pass the plunk test. I haven't had a chance to roll up any loaded bullets. Just dummies. A roll sizer is not in the budget. We're not into competition any more anyway. We're happy to get 10 rds into a paper plate rapid fire at 20 yards presently and use commercial loads for defensive carry. We're using a Ruger Max-9 and a Taurus G3c. No Glocks in sight. It is almost all new, never fired Winchester brass. I'll be extra sensitive to squibs and I'll take the small vice and brass rods with me to the range next time in case any of what I do roll up squibs. I had to look up Glock bulge, Thank you LongDayJake. This gives me some directions to work in.
 
My guess? Glock bulge not getting completely ironed out. This is a common issue guys have with using range brass. SOMETIMES, but not all the time, you can eliminate it by "cam over" on your press. Thats when you screw the die until it touches the shell plate and then give it an additional quarter turn. This works on single stage presses but progressives can be damaged by it so be careful. The other option is to get a roll sizer. The slow option that some guys have resorted to is to run all your sized cases through a bulge buster die before loading.

O/P figured out his resizing issue in post #47. He was using a Lee Decapping die thinking it was a 9MM sizing die. He located a 9MM sizing die and the sizing issue was resolved.
 
With all the variations I've had with the dummys, 1.02 to 1.43 one right after the other. (I metered each one as it came off the press and reset the meter every round) I'm almost wondering if maybe the bullet seater might be the issue. They're only $20.00 on Amazon. What thinks yee?
 
With all the variations I've had with the dummys, 1.02 to 1.43 one right after the other. (I metered each one as it came off the press and reset the meter every round) I'm almost wondering if maybe the bullet seater might be the issue. They're only $20.00 on Amazon. What thinks yee?

Almost a half inch variance. At this point, given the history of this thread. We are going to need to see a picture of your "seating" die...
 
O/P figured out his resizing issue in post #47. He was using a Lee Decapping die thinking it was a 9MM sizing die. He located a 9MM sizing die and the sizing issue was resolved.
I am so glad i started reading this thread at the end. Time to lock thread.
Never mind. I just read post #105.
And with that noted, it seems like it is time to put this one to bed.

5 Pages are a lot for a reader to wade through only to find that the original question has now morphed. Much better to start a new thread for additional questions
 
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