Skip to content Skip to footer
Please to create posts and topics.

45 colt primers not seating

My old SDB has been doing a great job of reloading 45 colt until the last 6 months or so.

Now getting about 10% high primers.  Using both brass and nickel cases--bit worse with nickel.  Same brass has been used over and over with new brass added to make-up for lost and split cases.  Loaded to very mild CAS power levels

Rebuilt press:  new shell plate screw (old one was same length), new primer slide, punch and cup, new 13800 bearings for link arms, new wave bearings.  All screws tight including mounting bolts. Cleaned and lubed everything while it was apart

Can feel when case will have high primer--no 'bump' at top of stroke.  If I pull the case it will have high primer, most times just 'drive on' and catch them at QC before loading up ammo boxes.  Can put case back in and primer will seat but this takes time and no fun on progressive press.

high primers vary on shell plate, not same spot.

Some high primers have a slant to them but not all.

 

Ideas?

walt laich Dillon #6016

 

 

Check the link arms and the webbed area at the bottom of the handle for a crack. Push the handle forward and hold it there while inspecting.

Be sure you have large pistol primers, as large rifle primers are about .009" taller.

I having the same problem Im using winchester/rp and starline brass and win primers most of the time. I have loaded thousands of rnds with no problem . Recently I had 5 in a batch of 20 . Is there an adjustment or is something worn out

There is no adjustment for primer seating depth. The machine allows for seating primers a maximum of about .010" below flush. After that the head of the seating punch contacts the interior of the primer pocket.

Well, I figured out what was wrong, no more guessing.  The handle broke as I was seating a primer.  Must have been flexing for some time and finally gave up the ghost.

New one arrived in four days and no more high primers.

 

walt

By Reloaders, For Reloaders.

Reloader.com © 2026. All rights reserved.

Go to Top
E-mail
Password
Confirm Password