The Firing Line Forums

Go Back   The Firing Line Forums > The Skunkworks > Handloading, Reloading, and Bullet Casting

Reply
 
Thread Tools Search this Thread
Old January 27, 2014, 02:24 PM   #1
PeterTheFish
Junior Member
 
Join Date: January 27, 2014
Posts: 8
Problem seating primers?

Howdy folks. I'm new to reloading, and have run into a bit of an issue (I think) I'm sure some of the more knowledgeable here can help me diagnose.

I'm using a Redding T-7 with the sliding bar primer feeding system to load. Before starting with any loading steps, I decapped a bit of my once fired .45 & 9mm Winchester brass and SS Tumbled it (lemi-shine & dawn). Sized and belled with RCBS carbide dies, and using Lyman shell plates.

For my first run of Winchester .45 brass and WLP primers, I really had to force (like both hands pushing the lever) the press to get the primers below flush, and even then I was only getting them .001 - .0015 below (vs. .0035 - .0055 for some factory WWB .45 I have sitting around).

If I put the brass the press and lower it with no primer in the cup, the primer cup enters the primer pocket smoothly to the bottom of the primer pocket, so that doesn't seem to be the issue.

At first I thought it might just be the primer / brass combo, but was priming some Winchester 9mm cases with CCI primers last night (after changing out to the small primer cup) and had the same issue - I really need to get into it to get the primer even slightly (.001) below flush.

Given that there are hand primers that can seat below flush with a lot less physical effort, am I doing something wrong here? Worrying too much about getting them exactly .003 - .005 below flush? Or just weak?

It takes so much effort to get the primer in and just below flush I had one go in sideways and didn't even notice until I took the case out.

Thanks folks.
PeterTheFish is offline  
Old January 27, 2014, 02:44 PM   #2
serf 'rett
Senior Member
 
Join Date: June 25, 2009
Location: Stuttgart, AR
Posts: 1,569
Well something is wrong. Since I don't have a T7, I can't give you much help. Can you adjust the seating post height? Is something else binding up the press?

I just hand primed around 1K cases this past weekend with a hand primer and didn't use anywhere near the force you describe.
__________________
A lack of planning on your part does not necessarily constitute an emergency on my part.
serf 'rett is offline  
Old January 27, 2014, 02:55 PM   #3
Hammerhead
Senior Member
 
Join Date: May 31, 2004
Location: Minnesota
Posts: 2,147
You don't get much leverage with that type of priming system.
I have the same struggles with my T-7 occasionally. It seems to depend on the combination of headstamp and primer. Some primers are just harder to seat in some brass.
I still prime on the press for my auto rounds, they don't seem as sensitive to primer depth, but for revolver and rifle loads I have switched to the RCBS Ram Prime on top of the T-7. Big difference in leverage.
Hammerhead is offline  
Old January 27, 2014, 03:27 PM   #4
mkl
Senior Member
 
Join Date: April 25, 2008
Location: DFW area, Texas
Posts: 425
I don't have a T-7 so I can't help you with the pressure required with that machine.

However...

It is possible that the primer pockets are simply too tight. I ran into a similar problem years ago with Winchester 30-30 brass. The pockets were simply too small as they came from the factory. The solution was a primer pocket uniformer which cuts the primer pockets to correct dimensions.

Here's a link to some of the best ones I've found:

http://www.sinclairintl.com/reloadin...prod34720.aspx

There are cheaper ones out there, but the tungsten carbide will last forever. I chuck the uniformer up in a drill press at about 500 rpm, but I would think the hand tool would work well (but slower) also.

Your would need the large pistol for your .45 unless you are unlucky enough to run into some of the few .45's that use small pistol.

Hope this helps.
mkl is offline  
Old January 27, 2014, 03:44 PM   #5
PeterTheFish
Junior Member
 
Join Date: January 27, 2014
Posts: 8
Looking at the press, I think Hammerhead nailed it - lack of leverage at the end of the upstroke with the press. I've got a ram-prime that came with my Lee hand-press, might be time to break that out and see if that solves the issue.

That said, I'd hate to give up the (relative) efficiency of the current setup - may have to go for a dedicated hand primer.

While I planned to use the T-7 for accuracy loading and getting into things, its looking more and more like I should have skipped straight to the 650...
PeterTheFish is offline  
Old January 27, 2014, 05:20 PM   #6
chris in va
Senior Member
 
Join Date: December 26, 2004
Location: Louisville KY
Posts: 13,552
I use my Hand Press for all my calibers. The Ram Prime has quite a bit of leverage, so as Peter mentioned it may be an option to just use a hand Press for mundane reloading tasks while you watch TV.

BTW most primers seat flush with my pistol calibers no matter how hard I (safely) crank them in. Some brass head stamps have different primer pocket depths.
chris in va is offline  
Old January 27, 2014, 05:42 PM   #7
WESHOOT2
Senior Member
 
Join Date: February 20, 1999
Location: home on the range; Vermont (Caspian country)
Posts: 14,270
no exceptions: reliable ignition

I prime all cases either with (currently) a pair of RCBS hand-prime units, or my XL650.

I have never primed a case on my LEE Reloader or Challenger or Lyman Crusher II or Bonanza CoAx.
__________________
.
"all my ammo is mostly retired factory ammo"
WESHOOT2 is offline  
Old January 27, 2014, 10:47 PM   #8
Gadawg88
Senior Member
 
Join Date: March 2, 2013
Location: Georgia
Posts: 241
Have you fired any of these loads? If the primers are at least flush or slightly below and they go bang then don't get hung up on the depth. Looking at a video on you tube of that press indicates it shouldn't take nearly that much effort. If it does then something is wrong in the set-up. Check to the link to an article about the T7 and priming problems:
http://www.rifleshootermag.com/2013/...-press-review/

Good luck with it.
Gadawg88 is offline  
Old January 28, 2014, 11:41 AM   #9
Jeff2131
Senior Member
 
Join Date: November 30, 2012
Location: Spring City, PA
Posts: 497
I agree with uniforming the primer pockets. Also what i do is, i use a mason drill bit and a cordless drill and " bevel" the primer pocket slightly. I use a lee auto prime hand tool and have found that when i bevel the pocket entry those primer seat lime butter! I bet they make a tool for doing that but ive become quite a pro at doing it my way. Using a press or hand primer, either way i feel you should need much leverage or strength to properly seat a primer. Too much pressure and uneveness could and will deform the primer...it.may still fire but its not going to ignite the way it was designed to.
__________________
---I DON'T DIAL 911---
Jeff2131 is offline  
Old January 28, 2014, 02:02 PM   #10
PeterTheFish
Junior Member
 
Join Date: January 27, 2014
Posts: 8
Folks thanks for the feedback - it is much appreciated.

Gadawg88: I haven't fired any of the loads yet, and while I read that review I probably didn't appreciate what was meant by difficulty seating primers at the time. Now it makes sense. I've also seen from videos where they seem to prime on the pres without a hitch, so I'm assuming this may be easier with other primer / brass combinations. If I continue to have problems I guess I just need to make a decision to either move to a hand primer or, as recommended, uniform the primer pockets. The latter probably makes more sense as it only has to be done once, but we'll see.

I'm going to try some Speer & Federal cases and see how those go...
PeterTheFish is offline  
Old January 28, 2014, 03:02 PM   #11
Gadawg88
Senior Member
 
Join Date: March 2, 2013
Location: Georgia
Posts: 241
I would give Redding a call and see what they recommend. If it is an alignment problem with the primer feeder they may have a fix for it.. Bottom line is it should work with any brass primer combo. Hope you get it worked out.
Gadawg88 is offline  
Old January 29, 2014, 07:51 AM   #12
PeterTheFish
Junior Member
 
Join Date: January 27, 2014
Posts: 8
Quote:
Originally Posted by Gadawg88 View Post
I would give Redding a call and see what they recommend. If it is an alignment problem with the primer feeder they may have a fix for it.. Bottom line is it should work with any brass primer combo. Hope you get it worked out.

I'll do that, but it doesn't seem to be an alignment issue - if I leave the primer cup empty it smoothly enters the primer pocket in the brass and nearly bottoms out in the pocket before the shell plate hits the sliding bar. So with no mechanical interference, it does just appear to be a tight fit and lack of leverage.
PeterTheFish is offline  
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 07:11 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
This site and contents, including all posts, Copyright © 1998-2018 S.W.A.T. Magazine
Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent: thefiringline.com
Contact Us
Page generated in 0.06143 seconds with 8 queries