Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Rifles, Reloading, Optics, Equipment > Reloading

Reloading Techniques For Reloading


Reply

straightness

 
LinkBack Thread Tools Display Modes
  #1  
Old 02-21-2010, 05:41 PM
Bronze Member
 
Join Date: Nov 2009
Posts: 74
straightness

I recently purchased a sinclair run out gauge, and found out that all of the rounds i am loading are very crooked. I thought that the problem may have been my seating die, so i got a forester bench rest seating die. This didn't help. I am using a brand new rockchucker press, and its operation seems to be good.

When i measure my fired brass, there is usually <.001 run out on the neck. After running the brass trough my sizing die, run out increases to ~.002 or .003. Then run out increases to .004 to .008 on the seated bullet when measured close to the neck.

I am not sure how to fix this, but i am thinking that a better sizing die would help? What would you guys do?
Reply With Quote
  #2  
Old 02-21-2010, 06:07 PM
Platinum Member
 
Join Date: Mar 2007
Location: MN
Posts: 1,219
Re: straightness

Much of runout is caused by the expander ball in the resizing process. You may want to use some extremely fine grit sand paper or wire mesh and polish the ball to reduce the friction.
__________________
I used to re-load but now I "hand-load".
-- Well, at least I try --
Reply With Quote
  #3  
Old 02-21-2010, 08:03 PM
Silver Member
 
Join Date: Mar 2007
Posts: 430
Re: straightness

Expander ball?
Reply With Quote
  #4  
Old 02-21-2010, 08:30 PM
Bronze Member
 
Join Date: Nov 2009
Posts: 74
Re: straightness

thanks for the replies. I will try the suggestions in the expander ball thread. Is the small amount of r.o. introduced in the sizing stage leading to the massive r.o. after the bullet is seated?
Reply With Quote
  #5  
Old 02-21-2010, 08:33 PM
Platinum Member
 
Join Date: Feb 2008
Location: IOWA
Posts: 1,870
Re: straightness

bota,
just resize without the expander ball, but make sure you check how much neck tension that gives you.
Reply With Quote
  #6  
Old 02-21-2010, 09:32 PM
Gold Member
 
Join Date: Feb 2008
Location: Sonoma County, CA
Posts: 824
Re: straightness

Bota, what kind of sizing die are you using?
Reply With Quote
  #7  
Old 02-21-2010, 09:36 PM
Bronze Member
 
Join Date: Nov 2009
Posts: 74
Re: straightness

RCBS sizing die. How do you check neck tension?
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Current Poll
Do you archery hunt for elk?
YES - 34.50%
118 Votes
NO - 48.54%
166 Votes
Not yet, but I plan to. - 16.96%
58 Votes
Total Votes: 342
You may not vote on this poll.

All times are GMT -5. The time now is 03:19 PM.


Powered by vBulletin ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Management Powered by vBadvanced CMPS
All content ©2010-2014 Long Range Hunting, LLC