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#6387671 - 07/29/16 06:46 PM Neck Sizing
Veteran Tracker

Registered: 11/23/05
Posts: 2841
Loc: Pittsburg, Texas
I am neck sizing one caliber and am having a problem, I think. After neck sizing the neck will show scratches on the neck that can be felt with a finger nail. Scratches are approx 1/4 of the neck circumference. First set of dies were sent back to manufacture & I was sent a new set with the same results. I have done every thing I can think of but have not found a solution. Any suggestions???? Thanks

#6387795 - 07/29/16 08:26 PM Re: Neck Sizing [Re: DLALLDER]
FiremanJG Online   content
THF Celebrity

Registered: 12/16/08
Posts: 17315
Loc: Wolfe City, TX
Switch to a bushing FL die.

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#6387839 - 07/29/16 08:58 PM Re: Neck Sizing [Re: DLALLDER]
DStroud Offline
Pro Tracker

Registered: 11/02/11
Posts: 1136
Loc: Waco
Odds are that its very unlikely it's the dies since two different sets are the same.

Are you positive the scratch is not present before sizing?

Is the brass polished prior to Neck sizing?

Lube applied to neck.

I have seen strong ejector springs cause bad scratches

#6392942 - 08/03/16 09:02 AM Re: Neck Sizing [Re: DLALLDER]
Strongbad Offline
Bird Dog

Registered: 02/04/10
Posts: 446
Whose dies are you using? Pics of the necks? Chambering? (not that it matters, but might). What is your resizing process, start to finish. Do you clean them up at all? Deburr/chamfer? Lube inside/out? etc. Need more info.

#6393022 - 08/03/16 10:00 AM Re: Neck Sizing [Re: DLALLDER]
jdk1985 Offline
THF Celebrity

Registered: 08/15/11
Posts: 11669
Loc: Waco, TX
Any chance manufacturer sent you the same set back on accident?

#6393625 - 08/03/16 04:58 PM Re: Neck Sizing [Re: DLALLDER]
Veteran Tracker

Registered: 11/23/05
Posts: 2841
Loc: Pittsburg, Texas
Redding 3 die deluxe,7x57 AI, don't vibrate every reload but clean necks with rag every other, Use Redding graphite neck sizing media & lube gets inside.

jdk, it is possible the 2nd set was made at the same time as the 1st set & does have the same problem as the 1st. Redding said 1st had some chattering inside.

I may know if I have solved problem, will install a new RCBS RC tomorrow & give it a try. Should be able to tell something.

#6393695 - 08/03/16 05:45 PM Re: Neck Sizing [Re: DLALLDER]
radarx3 Offline
Light Foot

Registered: 09/27/11
Posts: 33
Loc: Wilson County, Texas
Sizing die is galled up,I use Imperial sizing die wax now and have not had an issue. You can rub the wax on your finger tips and apply it to the brass neck before sizing, does not take much and a can will last a long time.I am not a big fan of Lee Precision but their collet dies really work well for me and these dies do not work harden the brass.


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