Applying Case sizing lube in primer pockets?

Status
Not open for further replies.
1KPerDay

1KPerDay

Member
Joined
Jan 19, 2006
Messages
20,856
Location
Happy Valley, UT
i have a bunch of inherited OLD (1960s) CCI 200 LRP which are very hard to seat compared to more modern primers. I've measured them and they're .210-2105 which is the same as my modern CCI 34s at .211 but they are .130 tall which is three thousandths taller than the .127 the 34s measure. I imagine the felt difficulty in seating is due partially to the more square profile along the base and primarily due to the taller height. I've sprayed some one shot onto some decapped .30-30 cases I'm loading with Unique for indoor close range shooting... if I let it dry thoroughly does anyone see any problem with this? The primers all have popped in past .30-06 and .308 loads if I get them seated.
 
Well I'm pleased so far. All my priming troubles have vanished. If there is any misfire/hangfire problem I'll report back.
 
While I do not think that you will have a problem with them going off after the solvent has flashed off your case lube, I would just save them for when the primer pockets of your brass get too loose for regular primers to work. Then you can squeeze another reload or two out of them before scrapping them.
 
One thought; if they go in easy will they come out esay? Like when they are fired?
 
Case lube in primer pockets, bad idea. But then, primers are very had to kill.

RCBS and Lee make a Ram Prime, for use on a press , for hard to seat primers.
 
I'm priming on a press with tons of leverage and it's still very difficult to seat them flush without some wax.

mdi said:
One thought; if they go in easy will they come out esay? Like when they are fired?
Click to expand...
good question, but I wouldn't say they're going in EASY. Just easier than they were. Still a bit more effort than seating standard LRP. I don't think they're going anywhere.
 
I have found some brass (S&B and Herters, and one or two others) have pretty sharp corners at the mouths of the primer pockets. I break the edge, chamfer the case mouth and eliminate many primer seating problems. I discovered this when using a Lee Loader in the '70s; chamfer the primer pocket mouths a bit and zero primer pops...
 
I have chamfered the primer pockets. These primers are just old/weird. They all worked, BTW. Lots of fun! POI is low/right. Next I'm going to try some lead/unique loads in .30-06 for my springfields. :)
 
mdi said:
One thought; if they go in easy will they come out esay? Like when they are fired?
Click to expand...

Doesn't matter - primers are all unseated and reseated by the extreme (relatively) pressure of the firing cartridge. Priming tool seating pressure doesn't remotely compare to that of the firing, so they ALL get pressed out, then back in as the pressure spike climbs.

So "easier" doesn't really matter in the context of creation of any issue, not when the "harder to unseat" primers are already being unseated.
 
Case lube ???/ aaaah probably not the best of ideas.

Better to get/use THIS
(I've got every priming tool known to man...but the RCBS mounted auto-prime has the leverage to seat CCI-41s easily into Starline 32-20 cases... the ultimate test )
:cuss:

.
 
I don't know how many of these fifty year old primers you have but new ones are certainly available at less than $.04 each. Why go through the angst and effort?
 
1KPerDay said:
I have chamfered the primer pockets. These primers are just old/weird. They all worked, BTW. Lots of fun! POI is low/right. Next I'm going to try some lead/unique loads in .30-06 for my springfields. :)
Click to expand...

Years ago a Sierra tech recommended 17.5 gr. of Unique behind their 168 gr. Matchkings as being super accurate in the 30-06 for 100 yd. reduced HP matches. Sure enough, on a calm day the load produced one hole groups in my Mod. 70 target rifle........on a calm day. Variable winds opened group up considerably.

Believe it or not, after a few firings, I found that the firing pin drove the case forward in the chamber with sufficient force that it pushed shoulder back resulting in excessive headspace.

Regards,
hps
 
1KPerDay said:
Wow! Interesting. I wouldn't think that possible.
Click to expand...

I found it interesting, as well. I was using once fired brass so it was still pretty soft. I'm sure work hardened brass would not be set back as much. I didn't play with it very long since our reduced matches were outdoors and wind affected the POI enough to cost points so I went back to standard loads pretty quick.

I wasn't sure what was going on, but proved the theory by dry firing a sized, once fired case, measured w/case mike, then dry fired it in my rifle then re-measured. Been too many years ago so don't remember the actual setback.

Regards,
hps
 
Status
Not open for further replies.

Similar threads

1KPerDay
  • Locked
Old CCI 200 large rifle primers tight?
Replies
8
Views
908
blarby
B
R
  • Locked
Lake City Primer Pockets - Need Measurement
Replies
5
Views
783
realbuffdriver
R
O
  • Locked
5.56 primer seating depth issues
Replies
13
Views
3K
tcoz
tcoz
CLP
  • Locked
Ever see this before? First for me.
Replies
11
Views
1K
fguffey
F
M
  • Locked
Stretched primer pockets?
Replies
3
Views
694
matworz
M
Back
Top