Welcome guest, is this your first visit? Create Account now to join.
  • Login:

Welcome to the NZ Hunting and Shooting Forums.

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed.

Darkness Delta


User Tag List

+ Reply to Thread
Page 1 of 3 123 LastLast
Results 1 to 15 of 35
Like Tree26Likes

Thread: Why…? Rings marks/scoring brass after FL resizing?

  1. #1
    Member
    Join Date
    Oct 2021
    Location
    Southland
    Posts
    18

    Why…? Rings marks/scoring brass after FL resizing?

    Always clean die and brass before hand. Doesn’t seam to matter how much or little lube I use Im always using a fair bit of pressure on press to re size. (Redding dies, 300norma mag) bumping shoulder 2thou.



    Sent from my iPhone using Tapatalk

  2. #2
    Member Micky Duck's Avatar
    Join Date
    Apr 2015
    Location
    Geraldine
    Posts
    22,373
    grit somewhere.......
    GuyDowding likes this.

  3. #3
    Member Micky Duck's Avatar
    Join Date
    Apr 2015
    Location
    Geraldine
    Posts
    22,373
    are you lubing neck??? makes job easier by a heck of a lot...powdered graphite is awesome for this.
    GuyDowding likes this.

  4. #4
    Member
    Join Date
    Oct 2021
    Location
    Southland
    Posts
    18
    Quote Originally Posted by Micky Duck View Post
    are you lubing neck??? makes job easier by a heck of a lot...powdered graphite is awesome for this.
    Yeah mate sure am! Definitely makes it easier but still getting there marks!


    Sent from my iPhone using Tapatalk

  5. #5
    Member
    Join Date
    Aug 2014
    Location
    Palmerston North
    Posts
    909
    Is it only after sizeing? Looks to me like its the finish in your chamber and thats marking the case when fired

  6. #6
    Member Micky Duck's Avatar
    Join Date
    Apr 2015
    Location
    Geraldine
    Posts
    22,373
    whats weird is the bottom photo...shows a line across rim...now thats not from die..die doesnt touch it,only the base. you are missing something simple.
    GuyDowding likes this.

  7. #7
    Member Micky Duck's Avatar
    Join Date
    Apr 2015
    Location
    Geraldine
    Posts
    22,373
    your not using the plurry toothpaste stuff are you???/
    GuyDowding likes this.

  8. #8
    Member
    Join Date
    Feb 2014
    Location
    Hawkes Bay
    Posts
    2,394
    A die will only give you longitudinal scoring, not circumferential. DEF suspect it's chamber machining marks.

  9. #9
    Member
    Join Date
    Oct 2021
    Location
    Southland
    Posts
    18
    Just put once fired brass through die and got the same rings/scoring. Brass had no marks at all beforehand??


    Sent from my iPhone using Tapatalk

  10. #10
    Member
    Join Date
    Oct 2021
    Location
    Southland
    Posts
    18
    Quote Originally Posted by 6x47 View Post
    A die will only give you longitudinal scoring, not circumferential. DEF suspect it's chamber machining marks.
    Can see machining rings on inside of die!


    Sent from my iPhone using Tapatalk
    Micky Duck and csmiffy like this.

  11. #11
    Member Sideshow's Avatar
    Join Date
    Apr 2015
    Location
    UK
    Posts
    7,900
    Might be copper from the bullet that gets peeled as you seat the bullet then sits lose in the chamber and as you chamber the next round this is where you get that scoring.
    But that is usually not straight, because as you left the bolt to extract or chamber this is when it scores the brass.
    Q: Are you sure it was on there after reloading and not before, ie as a new case?
    That nick on the rim sort of leads me to think that.
    The worst I have seen is from redding dry neck lube, a ceramic ball getting in the die when neck sizing. God knows how it got there but made a right mess of the brass.
    It's all fun and games till Darthvader comes along
    I respect your beliefs but don't impose them on me.

  12. #12
    Member
    Join Date
    Oct 2021
    Location
    Southland
    Posts
    18
    Quote Originally Posted by Sideshow View Post
    Might be copper from the bullet that gets peeled as you seat the bullet then sits lose in the chamber and as you chamber the next round this is where you get that scoring.
    But that is usually not straight, because as you left the bolt to extract or chamber this is when it scores the brass.
    Q: Are you sure it was on there after reloading and not before, ie as a new case?
    That nick on the rim sort of leads me to think that.
    The worst I have seen is from redding dry neck lube, a ceramic ball getting in the die when neck sizing. God knows how it got there but made a right mess of the brass.
    Hey, just put some new and once fired brass through die which had no blemishes or ring in it ect before hand but once re sized can see them straight away.. i can see machining rings on inside of die and for whatever reason i seam to need to use a fair bit if pressure with my press..can be easy to jam cases in it!


    Sent from my iPhone using Tapatalk
    Micky Duck likes this.

  13. #13
    Member
    Join Date
    Feb 2014
    Location
    Hawkes Bay
    Posts
    2,394
    Stop using Speights as the lube
    chainsaw likes this.

  14. #14
    Member Micky Duck's Avatar
    Join Date
    Apr 2015
    Location
    Geraldine
    Posts
    22,373
    take dies back....or get some others..... or polish the shite out of them.
    GuyDowding likes this.

  15. #15
    Member
    Join Date
    Apr 2012
    Location
    Kingcountry
    Posts
    4,612
    Some die manufacturers coat the inside of the dies with a protective coating from the factory, needs to be removed with thinners or similar agent. Have struck this with a set of Hornady, once cleaned problem went.
    cbfb likes this.

 

 

Similar Threads

  1. Resizing .308 brass to .243
    By 257weatherby in forum Reloading and Ballistics
    Replies: 16
    Last Post: 06-03-2022, 12:03 PM
  2. Resizing brass vertical marks on neck
    By Southerner223 in forum Reloading and Ballistics
    Replies: 25
    Last Post: 21-03-2021, 07:24 PM
  3. Strange marks on brass
    By taupo_cowboy in forum Reloading and Ballistics
    Replies: 9
    Last Post: 15-11-2020, 08:10 PM
  4. Resizing different brass manufacturers
    By Oli1102 in forum Reloading and Ballistics
    Replies: 4
    Last Post: 08-06-2018, 04:22 PM
  5. Marks on scope tube from rings
    By Baz in forum Firearms, Optics and Accessories
    Replies: 1
    Last Post: 16-03-2012, 12:29 PM

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
Welcome to NZ Hunting and Shooting Forums! We see you're new here, or arn't logged in. Create an account, and Login for full access including our FREE BUY and SELL section Register NOW!!