Case bludge after resizing?

[Brbecker]

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[Brbecker]

I can’t seem to figure out how to post pictures on here with any clarity. Is there any suggestions ?

['ol shooter]

I was getting that when resizing 9mm also, so I tried not going so far down, and the problem disappeared and the case still dropped in the gage fine. The 9mm is a tapered case by the way.

[Brbecker]

Thank you for Sharing. I’m a little confused on what you mean the case stillndropped in the gage just fine. By gage do you mean a chamber gage? Also is there something I should know about 9mm being a tapered case aside from taper crimping ?

[ar15barrels]

9mm cases are tapered on the sides.
Reloading dies resize them to be STRAIGHT.
Therefore, the taper is removed down to what you are calling a bulge, but that shoulder is simple a DENT that is put there by the reloading dies.

What you are seeing is NORMAL for 9mm reloads.

The dent will disappear after you fire them in your gun's tapered chamber.

[furrly]

Luzd


Use the Lee resizing die, screw it down and it touches the shell plate, your good to go.. I've loaded 10s of thousands of rounds without incident..
Good luck

[kcstott]

Problem I had for many years was Lee dies sized the 9mm to much, and I ended up with a coke bottle for loaded rounds. that all stopped when i acquired a set of Dillon dies for my RL550 that required me to acquire a 9mm pistol again.
this set up loads rounds as close to factory looks as you can get.

That said the oversized loads i made 30 years ago all worked just fine. What you are seeing is normal and common,

['ol shooter]

A case gage, and as far as crimping goes, the only crimp you need on auto pistol brass is enough to take out any belling you did to the case mouth so it will feed and headspace in the chamber properly. Brass is springy, and lead is not, so crimping more than the minimum needed squeezes the case and bullet. The case springs back some but the lead doesn't, the result is a loose bullet that will get pushed back into the case when feeding. It can create a dangerous pressure situation as well

[Win231]

There is some play in the press mechanism; maybe more in a progressive press. I adjust the die so the sizer touches the shell holder (or shell plate). That way, the case is fully resized.

['ol shooter]

I just love it when people chime in without bothering to read the prior posts.

[hambam105]

I see a Wilson 9x19 Case gauge in your future, GrassHopper.

[fguffey]

There is some play in the press mechanism; maybe more in a progressive press. I adjust the die so the sizer touches the shell holder (or shell plate). That way, the case is fully resized.

That is true when reloaders are trained to repeat what they read on the Internet. In the real world there is a factor reloaders never consider that would be the cases ability to resist sizing. My cases are sized to minimum length/full length sized when the bottom of the die contacts the top of the shell holder.

If the die does not make it down to the shell holder or if the shell holder does not make it up to the bottom of the die the gap between the die and shell holder indicates the amount of case that was not sized.

Most reloaders have too many variations and every tool, case, chamber and die has too much tolerance for them to sort anything out. And at the mention of 'the datum' they get silly.

The die has the ability to reduce the length of the case from the shoulder of the case to the case head if it is used with a shell holder that has a deck height of .125". Back to the gap between the shell holder and the bottom of the die; in the perfect world we would be using new and or once fired cases. If the cases being sized has more resistance to sizing than the press can overcome the press will flex; meaning the die does not make it to the shell holder.

Rather than fix the case the reloader chooses to add the quarter turn as in lowering the die .017" or 1/2 turn to lower the die .034" to increase the presses ability to overcome the cases ability to resist sizing.

F. Guffey