View Full Version : Primer pocket reaming?

August 19, 2011, 20:47
Got some LC 04 cases, with pockets that mike on average .304. Primers are .317 O.D.

Anybody got the poop on the right size to ream pockets?

August 19, 2011, 21:15
All that has to be done is remove the crimp on the edge. I've use the RCBS swager,and I've heard good things about the Dillon unit.
However, for the past five years or so I've been using a case chamfer tool, it's as fast, if not faster than any unit I've tried, and 'at least' as effective.
After the crimp is removed you could use a primer pocket uniformer if your working up high end match loads.

August 20, 2011, 07:05
So, the main body of the pocket is the correct diameter, and all I need do is cut out the crimp? If so, I'll make a tool for that.

K. Funk
August 20, 2011, 09:57
I think CH4D makes a swaging rod set-up.


L Haney
August 20, 2011, 10:34
Shlomo makes tools in his Skunkwerks. And by the way, are you loading for a .50? Yours? I didn't know you were doing that.

August 20, 2011, 12:07
So, the main body of the pocket is the correct diameter, and all I need do is cut out the crimp?

Yes !

August 21, 2011, 12:44
I've tried most fifty primer pocket tools out there, and I've settled on the Wilson. It's an accessory to their case trimmer that leaves a nice radiused edge to the pocket,. YMMV.

August 21, 2011, 16:07
I use the CH tools swager and It has worked well for me.


August 21, 2011, 20:37
Well, we cobbled up a rig on the little lathe, using a delrin ring in the spindle bore as a stop and centering device for the case mouth, and the 3-jaw chuck for the head. Used a four-flute 5/16" end mill with a stop collar for depth.

http://img542.imageshack.us/img542/9835/001io.jpg (http://imageshack.us/photo/my-images/542/001io.jpg/)

Decided on a final depth of .218", which cleaned up and squared the bottoms of the pockets. With a light chamfer for a start, the .315" diameter pockets (on average--they varied a half-thou high and low, depending on how well centered the pockets were in the head. We only had to cull one of 55 done today, for being about .003 egg shaped.) seated primers very nicely. Firm, but not too much so.

http://img98.imageshack.us/img98/9392/005ilp.jpg (http://imageshack.us/photo/my-images/98/005ilp.jpg/)