Zip Spindle issues

[michehembr]

Hi All,
I was recently reloading some once fired 9MM brass and for some reason my de-primer pin bent over forced the threaded spindle to move up. I looked at the threads on the spindle and they looked to be stripped, so I contacted Hornady and they sent me a replacement kit. I put in the replacement tightened everything down to where it should be and tried it again. Well needless to say it messed up as well also bending the pin and shoving the spindle back through the collet ( i guess that's what its called) the threaded nut that the spindle goes into. Anyway it almost like the it isn't hitting correctly on the primer to push it out. I've had some hard primers before but nothing like this. Any suggestions would be greatly appreciated. I have since ordered 2 more kits with new collets maybe that will work. By the way I use a Hornady single stage press if anyone needs that info.
Thanks for any help.
Mike

 

[Bc'z]

Is the decapping pin to large for the flash hole, or expander bottoming out in case?

 

[Walt Krafft]

Berdan primed cases?

 

[chromatica]

Military ammo manufacturers often swage each case after it has been primed. This process creates a small ridge of brass around the edge of the primer that prevents it from falling out during transportation. I use a primer punch and anvil to pound out spent primers on military brass and then ream the primer pocket with a special tool that carves away the ridge left from swaging. This primer pocket reamer is available from Hornady.

 

[Just Say Moe]

If it isn't Berdan primed or small flash hole mentioned above- in my experience with one Hornady die, the zip nut needs to be real tight to prevent it slipping the collett threads. I got tired of bending them so I got rid of it.

 

[fkimble@charter.net]

Also range pickup brass that has been rained on and sat for a while will corrode between the primer outer wall and the inside wall of the primer pocket. Those will either just bend/break the pin or punch the pin through the primer! When I pickup just fired range brass, my buddy gives me a heads up when Rambo shows up with a case of ammo and sees how fast he can shoot it all up, I occasionally end up with a few that have been there awhile and are corroded. I usually go straight home and wash it and dry it, then deprime it !

Frank

 

[ebb]

Read up on crimped primers and flash hole diameters, sounds as if one or both of these could be your problem. Don't give up. Throwing away one piece of brass may be the easiest solution.

 

[michehembr]

Thanks to all of you. I think the age of these rounds may be the issue. I may tumble them and try again if that doesnt work then ill just pit them with all the old scrap brass i have and melt them down. Ive got about 2000 rounds already just wanted a few more but dont really need them. Its just a hobby I like shooting my cowboy 45 colt but the 9mm is just reloading for a rainy day .
Thanks guys