Long Range Hunting Online Magazine


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

Reloading Techniques For Reloading


Reply

Bullet Variation

 
LinkBack Thread Tools Display Modes
  #1  
Old 01-16-2011, 04:35 PM
Silver Member
 
Join Date: Apr 2005
Location: Missouri
Posts: 192
Bullet Variation

I'm working on a 7mm STW load for 180gr VLD Bergers and am trying to sort to eliminate as much variation as possible. I've sorted by weight, and right now I'm sorting again by the length of the bearing surface. What other dimesions should I consider measuring? Total length? Base to ogive? Nose to ogive? Or other? A person could go crazy sorting out all the possible variables.

By the way the range I'm getting is .12mm total variation on the bearing surface, and .4gr total variation on the bullet weights. Does this sound excessive, normal or good?
Reply With Quote
  #2  
Old 01-17-2011, 11:50 AM
Silver Member
 
Join Date: Apr 2005
Location: Missouri
Posts: 192
Re: Bullet Variation

Quote:
Originally Posted by mtang45 View Post
I'm working on a 7mm STW load for 180gr VLD Bergers and am trying to sort to eliminate as much variation as possible. I've sorted by weight, and right now I'm sorting again by the length of the bearing surface. What other dimesions should I consider measuring? Total length? Base to ogive? Nose to ogive? Or other? A person could go crazy sorting out all the possible variables.

By the way the range I'm getting is .12mm total variation on the bearing surface, and .4gr total variation on the bullet weights. Does this sound excessive, normal or good?

Just a followup. I measured all 100 bullets in the box and found the bearing surface to vary from 16.25mm to 15.91mm. Weight was fairly consistant and varied from 179.6gr to 180.1gr.

The majority of the bullets fell into three groups 16.2mm +- .02, 16.15mm +- .02, 16.10mm +- .02. I did have three greater than 16.22 and 5 less than 16.08.

Most bullet weights fell within 180gr +- .1 with about 10 weighing less than 179.9, none were over.

This is the first time I have checked Berger bullets, is this normal variation?
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Similar Threads for: Bullet Variation
Thread Thread Starter Forum Replies Last Post
Measured headspace variation Stevanda Reloading 5 07-26-2010 04:22 PM
How much variation is there between powder lots? tlk Reloading 3 02-26-2010 09:37 AM
Bullet batch weight variation Topshot Rifles, Bullets, Barrels and Ballistics 4 07-27-2009 07:33 PM
Weighing cases acceptable variation? encoreguy Reloading 12 02-24-2008 09:49 PM
Muzzle velocity variation chessman Rifles, Bullets, Barrels and Ballistics 5 05-02-2004 08:34 PM

Current Poll
Do you archery hunt for elk?
YES - 32.28%
82 Votes
NO - 50.39%
128 Votes
Not yet, but I plan to. - 17.32%
44 Votes
Total Votes: 254
You may not vote on this poll.

All times are GMT -5. The time now is 03:45 PM.


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