neck sizing after priming?

USCG · February 7, 2010, 01:02 PM

Ok, so I had a stupid moment... one of my coworkers has a source of lots of once fired .308 brass (technically 7.62x51)... well he deprimed them and removed the crimp, but I had not realized that he hadn't neck sized them, and primed all of them, so right now I am stuck with about 600rds of primed brass that I cant use until i find a way to size them.

Any suggestions?

I have been told that there is a lube out there that is like chapstick, and that if i remove the pin from my resizing/ depriming die that I can do it that way?

oneoldsap · February 7, 2010, 01:14 PM

If the brass wasn't fired in your rifle , neck sizing may well be a lesson in futility . You should full length resize the first time , which you can do with them primed . Go easy on the inside neck lube , a little on every 4th or 5th case should work just fine . I would think if you're shooting these in your AR-10 ,you would always full length resize .

mrawesome22 · February 7, 2010, 01:19 PM

Yep. FL size with the pin removed.

USCG · February 7, 2010, 01:20 PM

I forgot that those were still on my profile, I have since moved to a FNH SPR A1 .308, so it is for a bolt gun if that makes any difference...it is also surplus brass from machine gun shoots...

hodaka · February 7, 2010, 01:26 PM

bolt gun = tight chamber (probably)

machine gun = loose chamber

It is unlikely that they will fit your chamber unless you full length size. Either remove the pin, or carefully deprime when you FL size. You can even reuse the primers if you are careful.

mrawesome22 · February 7, 2010, 01:31 PM

Quote:

o it is for a bolt gun if that makes any difference.

You must FL size.

Sidewinder72 · February 7, 2010, 01:47 PM

I would deprime first and save the primers for use. I wouldn't lube and deprime in same step. Deprimeing live primers are ne different than dead primers. Never had one go off.

SKULLANDCROSSBONES65 · February 7, 2010, 03:14 PM

G'day. You could try dipping the case neck into Powder Graphite. It should not react with the primers.

howlnmad · February 7, 2010, 04:05 PM

Don't de-prime! Just remove the pin from your sizer and use a graphite powder to lube the necks.

jpsshack · February 7, 2010, 07:09 PM

+1 on oneoldsap. Neck sizing is done for bolt action, lever action or single-shot rifles only after the brass has already been shot in your specific weapon

B78-22250 · February 8, 2010, 09:08 AM

Several of the above posts have given you the answer you seek.
You must do a FL resize of these cases so they will chamber in your rifle.
Remove the depriming pin from your die you will leave the expander ball on the die stem. lubricate the outside of the case as your normal operating procedure. dip the neck in a dry lube such as motor mica or graphite as suggested above. Resize a case clean it up and try to chamber it. If all is well at this point seat a bullet and try to chamber it. If all is well at this point
load and shoot them and from this point on you can neck size them for your bolt action chamber. I hope this helps .

USCG · February 8, 2010, 01:44 PM

roger that guys, thanks a lot for your help, I'm pretty new to reloading, but i was really hoping that i hadn't jacked up all those primers and brass.

February 7, 2010, 01:02 PM	#1
USCG Member Join Date: June 9, 2009 Location: Southeast TX Posts: 43	neck sizing after priming? Ok, so I had a stupid moment... one of my coworkers has a source of lots of once fired .308 brass (technically 7.62x51)... well he deprimed them and removed the crimp, but I had not realized that he hadn't neck sized them, and primed all of them, so right now I am stuck with about 600rds of primed brass that I cant use until i find a way to size them. Any suggestions? I have been told that there is a lube out there that is like chapstick, and that if i remove the pin from my resizing/ depriming die that I can do it that way? __________________ FNH SPR A1, S&W 340PD, S&W Model 29 Stainless, Winchester 1300 Defender, Springfield XDm .40, Walther PPS 9mm, Sig Trailside .22, S&W 500 6.5" Lew Horton/ PC Compensated Hunter , marlin .22, Ruger 10/22, Mosin Nagant 91/30, Puma M92 carbine .44 16"bbl w/ over-sized loop.

February 7, 2010, 01:20 PM	#4
USCG Member Join Date: June 9, 2009 Location: Southeast TX Posts: 43	different rifle I forgot that those were still on my profile, I have since moved to a FNH SPR A1 .308, so it is for a bolt gun if that makes any difference...it is also surplus brass from machine gun shoots... __________________ FNH SPR A1, S&W 340PD, S&W Model 29 Stainless, Winchester 1300 Defender, Springfield XDm .40, Walther PPS 9mm, Sig Trailside .22, S&W 500 6.5" Lew Horton/ PC Compensated Hunter , marlin .22, Ruger 10/22, Mosin Nagant 91/30, Puma M92 carbine .44 16"bbl w/ over-sized loop.

February 7, 2010, 03:14 PM	#8
SKULLANDCROSSBONES65 Senior Member Join Date: August 19, 2008 Location: Far Nth Wst QLD Australia Posts: 966	G'day. You could try dipping the case neck into Powder Graphite. It should not react with the primers. __________________ If you're not confused, you're not trying hard enough! When you're confused, I'll try to use smaller words!!!

February 8, 2010, 09:08 AM	#11
B78-22250 Member Join Date: May 24, 2009 Location: Eden NC Posts: 47	Resizing Several of the above posts have given you the answer you seek. You must do a FL resize of these cases so they will chamber in your rifle. Remove the depriming pin from your die you will leave the expander ball on the die stem. lubricate the outside of the case as your normal operating procedure. dip the neck in a dry lube such as motor mica or graphite as suggested above. Resize a case clean it up and try to chamber it. If all is well at this point seat a bullet and try to chamber it. If all is well at this point load and shoot them and from this point on you can neck size them for your bolt action chamber. I hope this helps .

February 8, 2010, 01:44 PM	#12
USCG Member Join Date: June 9, 2009 Location: Southeast TX Posts: 43	thanks roger that guys, thanks a lot for your help, I'm pretty new to reloading, but i was really hoping that i hadn't jacked up all those primers and brass. __________________ FNH SPR A1, S&W 340PD, S&W Model 29 Stainless, Winchester 1300 Defender, Springfield XDm .40, Walther PPS 9mm, Sig Trailside .22, S&W 500 6.5" Lew Horton/ PC Compensated Hunter , marlin .22, Ruger 10/22, Mosin Nagant 91/30, Puma M92 carbine .44 16"bbl w/ over-sized loop.

February 7, 2010, 01:14 PM	#2
oneoldsap Senior Member Join Date: September 16, 2009 Location: I live in the foot of the Green Mountains of Vermont Posts: 506	If the brass wasn't fired in your rifle , neck sizing may well be a lesson in futility . You should full length resize the first time , which you can do with them primed . Go easy on the inside neck lube , a little on every 4th or 5th case should work just fine . I would think if you're shooting these in your AR-10 ,you would always full length resize .

February 7, 2010, 01:19 PM	#3
mrawesome22 Senior Member Join Date: November 9, 2005 Location: Ohio, Appalachia's foothills. Posts: 2,310	Yep. FL size with the pin removed.

February 7, 2010, 01:26 PM	#5
hodaka Senior Member Join Date: April 23, 2006 Location: South Texas Posts: 1,018	bolt gun = tight chamber (probably) machine gun = loose chamber It is unlikely that they will fit your chamber unless you full length size. Either remove the pin, or carefully deprime when you FL size. You can even reuse the primers if you are careful.

February 7, 2010, 01:47 PM	#7
Sidewinder72 Senior Member Join Date: November 25, 2008 Location: Kansas Posts: 101	I would deprime first and save the primers for use. I wouldn't lube and deprime in same step. Deprimeing live primers are ne different than dead primers. Never had one go off.

February 7, 2010, 04:05 PM	#9
howlnmad Senior Member Join Date: April 29, 2009 Location: Harriman Tn Posts: 128	Don't de-prime! Just remove the pin from your sizer and use a graphite powder to lube the necks.

February 7, 2010, 07:09 PM	#10
jpsshack Member Join Date: October 18, 2008 Location: Northern New England Posts: 53	+1 on oneoldsap. Neck sizing is done for bolt action, lever action or single-shot rifles only after the brass has already been shot in your specific weapon