Check your size/decap die

[gerritm]

I use a Dillon size/decap die and have for many many rounds with no issues. I use their lock nuts. Periodically check it for depth & tightness. Well I didn't for awhile. Usually catch any problems when I case gauge all rounds. The die had loosened up and was allowing a slight bulge on some at the bottom near the rim. Guessing they were the Glock bulge cases. When I case gauged they dropped in with just the slightest amount not falling completely down. Got sloppy mainly cause it was so random. 

 

Will shoot fine in my JP barrel pcc & STI 3-gun, but the 2 CZ's & Taccom barrel PCC with tighter chamber would not seat and were really tough to extract. Caught this during practice so no harm done. Funny thing I also plunk test the rounds in the CZ's and all I did were good. 

 

Re-adjusted & I put an extra nut on the bottom to prevent this. Also did this on the powder die that seems to move pretty regular. 

 

Something to keep an eye on.

 

gerritm

 

 

[echotango]

Paint stripe on the die/nut/tooldhead.  Easy to see if they move. I have this on all my dies. 

Edited January 6, 2021 by echotango

[RudyVey]

1 hour ago, echotango said:

Paint stripe on the die/nut/tooldhead.  Easy to see if they move. I have this on all my dies. 

what he said, black sharpie works fine

[gerritm]

I have witness marks on the rest.  This being behind and kinda hidden didn't notice.  

[RePete]

I've double nutted some of the dies.