Long Range Hunting Online Magazine


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

Reloading Techniques For Reloading


Reply

Ahhhh, the differance a little neck tension makes.

 
LinkBack Thread Tools Display Modes
  #1  
Old 12-17-2006, 03:19 PM
Platinum Member
 
Join Date: Jan 2003
Location: The rifle range, or archery range or behind the computer in Alaska
Posts: 3,582
Ahhhh, the differance a little neck tension makes.

After some experimenting recently playing around with neck tension I figured out that identical loads except for NT shoot differantly. I never thought .001-.002 NT made a hill of beans of differance on accuracy until now. Below are 4 pictures of 2 differant loads. My 200 ACCUBOND load and my 178 AMAX load. The only differance in the 2 groups of each is NT. The 200 AB used .003 and .004" NT and the 178 AMAX used .001 and .003" NT. These are not the only groups that have done this. Scince I have started playing around with NT, every time it has changed it. If I leave it alone, the groups stay the same whether good or great.








__________________
__________________
Long range shooting is a process that ends with a result. Once you start to focus on the result (how bad your last shot was, how big the group is going to be, what your buck will score, what your match score is, what place you are in...) then you loose the capacity to focus on the process.
Reply With Quote
  #2  
Old 12-17-2006, 04:24 PM
Silver Member
 
Join Date: Dec 2004
Posts: 139
Re: Ahhhh, the differance a little neck tension makes.

Meichele,

Looks like a significant improvement.
Can I ask how you adjust neck tension. I assume you are using the "S" type dies for which you can oder various neck tension dies. These are the ones with the neck die that floats. Is this correct and if so, do you ever have trouble with concentricity (loaded bullet being out of round with case body).

Thank,
Vic
Reply With Quote
  #3  
Old 12-17-2006, 04:30 PM
Platinum Member
 
Join Date: Feb 2004
Location: Pennsyltucky
Posts: 2,625
Re: Ahhhh, the differance a little neck tension makes.

i can see going from 1 to 3 NT making a little difference but i wouldn't have thought going from 3 to 4 would do much.did you say you've repeated this a couple of times? by the way, very impressive groups you have there.
__________________
davesonlinedeals.com
Reply With Quote
  #4  
Old 12-17-2006, 04:41 PM
Gold Member
 
Join Date: Mar 2004
Location: Spokane, WA
Posts: 521
Re: Ahhhh, the differance a little neck tension makes.

Vic, The whole point of the neck bushing is to keep everything floating and centered. Assuming a centered neck in your chamber, the Redding dies will size correctly. Bullet seating allows a bullet to enter offline, which is why most use the benchrest Redding seating die. Run outs can be kept at .001 with care. I assume that you can get "too tight" with neck tension. According to Redding, .001 to .002 is OK, mainly neck tension just needs to keep the bullet from pulling during recoil. I would make a guess that the extra neck tension is allowing the primer/powder combe to burn more consistently. Not normally a problem in most loads?? [img]/ubbthreads/images/graemlins/confused.gif[/img]
Reply With Quote
  #5  
Old 12-17-2006, 06:29 PM
Platinum Member
 
Join Date: Feb 2005
Location: Nevada
Posts: 2,782
Re: Ahhhh, the differance a little neck tension makes.

Nice post, good shooting, thanks for sharing!
__________________
-----------------------------

-----------------------------
HEBREWS 13:8
Jesus Christ the same yesterday, and to day, and for ever.

Our Lord Jesus said that as it was in the days of Noah and
also as it was in the days of Lot so it shall be in the days...
It's happening again!!! God sent to us His prophet, and His Word
to this generation and we once more are rejecting it as was prophesied!!!

---> As promised, God Sent His Prophet to us!
Reply With Quote
  #6  
Old 12-17-2006, 06:40 PM
Platinum Member
 
Join Date: Jan 2003
Location: The rifle range, or archery range or behind the computer in Alaska
Posts: 3,582
Re: Ahhhh, the differance a little neck tension makes.

Vic,

[ QUOTE ]
Can I ask how you adjust neck tension. I assume you are using the "S" type dies for which you can oder various neck tension dies.

[/ QUOTE ]

That is correct. I use the Redding S neck sizer with differant bushings. I neck size after using a body die to full length size my brass.
__________________
__________________
Long range shooting is a process that ends with a result. Once you start to focus on the result (how bad your last shot was, how big the group is going to be, what your buck will score, what your match score is, what place you are in...) then you loose the capacity to focus on the process.
Reply With Quote
  #7  
Old 12-17-2006, 06:42 PM
Platinum Member
 
Join Date: Jan 2003
Location: The rifle range, or archery range or behind the computer in Alaska
Posts: 3,582
Re: Ahhhh, the differance a little neck tension makes.

Dave,

[ QUOTE ]
did you say you've repeated this a couple of times?

[/ QUOTE ]

Yes, many times with the same results. I dont know that the differance between .003 and .004" will make the same differance in every rifle, but at least in this one it does.
__________________
__________________
Long range shooting is a process that ends with a result. Once you start to focus on the result (how bad your last shot was, how big the group is going to be, what your buck will score, what your match score is, what place you are in...) then you loose the capacity to focus on the process.
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Similar Threads for: Ahhhh, the differance a little neck tension makes.
Thread Thread Starter Forum Replies Last Post
Neck tension-- how much ??? GNERGY Reloading 8 10-12-2010 05:35 PM
Neck Tension 7mm Eclipse Reloading 6 09-06-2010 06:22 PM
neck tension rufous Reloading 3 08-24-2007 08:57 PM
neck tension col48 Reloading 0 08-06-2006 02:28 AM
.223 Neck Tension JWH Clark Reloading 5 04-02-2006 02:49 AM


All times are GMT -5. The time now is 08:43 PM.


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