close
Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Rifles, Reloading, Optics, Equipment > Rifles, Bullets, Barrels & Ballistics

Rifles, Bullets, Barrels & Ballistics Applied Ballistics

Reply

Long range bullet minimal expansion

LinkBack Thread Tools Display Modes
  #15  
Unread 09-12-2012, 09:12 PM
Gold Member
 
Join Date: Apr 2012
Location: Terre Haute In.
Posts: 693
Re: Long range bullet minimal expansion

Quote:
Originally Posted by elkaholic View Post
I need to make a correction on a post I made yesterday concerning the Berger. I got looking at my notes and thought that I had made a major mistake so I did the test over today. It turns out that the Bergers take quite a bit more velocity to open than what I originally posted. Part of the problem was, I was also testing some bullets with drilled out tips and confused some of the data. Below is a pic of todays test. I have also determined that the tips that are drilled out will expand down to at least 1900' (maybe farther). I hope to test this further when I get a chance. By the way, this is in no way a knock on the Bergers because as far as I know, they are not advertised as hunting bullets anyway. Also, it doesn't mean that they won't work as hunting bullets within some parameters....RichAttachment 12884

Note the pic of the tip! This is a recurring result with the tip not expanding from the meplat, but rather rupturing, or breaking off, at the end of the hollow cavity where the lead begins. This is around .4" from the meplat which explains the high b.c. of the Berger without needing excessive twist for this long of bullet (i.e. not much weight forward) You can also see that the bullet fired at 1900' was starting to rupture at that point. It appears to me that the pressure entering the hollow point takes a path of lesser resistance which happens to be at the junction of the core and ruptures there rather than expand at the tip?
Just curious is the berger a vld which is supposed to be a hunting bullet. At least that is what I have been lead to believe.
Thanks, Rick
Reply With Quote
  •   #16  
    Unread 09-12-2012, 09:18 PM
    Platinum Member
     
    Join Date: Dec 2008
    Location: rathdrum, id.
    Posts: 4,875
    Re: Long range bullet minimal expansion

    Quote:
    Originally Posted by rick523 View Post
    Just curious is the berger a vld which is supposed to be a hunting bullet. At least that is what I have been lead to believe.
    Thanks, Rick
    This is listed as a "target bullet" by Berger! That is why I am qualifying my results. It is a hybrid which has a tangent ogive starting out and goes immediately to a tangent ogive (VLD). It is an ingenious design that shoots VERY well! Hats off to Berger..........Rich
    Reply With Quote

      #17  
    Unread 09-12-2012, 09:25 PM
    Platinum Member
     
    Join Date: Jan 2008
    Location: Falls Church, VA
    Posts: 3,474
    Re: Long range bullet minimal expansion

    Quote:
    Originally Posted by elkaholic View Post
    This is listed as a "target bullet" by Berger! That is why I am qualifying my results. It is a hybrid which has a tangent ogive starting out and goes immediately to a tangent ogive (VLD). It is an ingenious design that shoots VERY well! Hats off to Berger..........Rich
    uuuhhh...think you mean starts out as secant and goes to tangent.
    __________________
    I'm not gonna shoot here. I'm gonna shoot waaaaaaaay over there!
    Reply With Quote
      #18  
    Unread 09-12-2012, 09:27 PM
    Platinum Member
     
    Join Date: Nov 2008
    Location: SW Montana
    Posts: 5,514
    Re: Long range bullet minimal expansion

    Very interesting! I wonder if on meat they would rupture like that?
    __________________
    "Pain is weakness leaving your body"
    Reply With Quote
      #19  
    Unread 09-12-2012, 09:41 PM
    Platinum Member
     
    Join Date: Dec 2008
    Location: rathdrum, id.
    Posts: 4,875
    Re: Long range bullet minimal expansion

    Quote:
    Originally Posted by trebark View Post
    uuuhhh...think you mean starts out as secant and goes to tangent.
    They start as a tangent at the body/ogive and go to a secant to the tip.....Rich
    Reply With Quote
      #20  
    Unread 09-12-2012, 09:45 PM
    Platinum Member
     
    Join Date: Dec 2008
    Location: rathdrum, id.
    Posts: 4,875
    Re: Long range bullet minimal expansion

    Quote:
    Originally Posted by bigngreen View Post
    Very interesting! I wonder if on meat they would rupture like that?
    I'm thinking meat would be more difficult to expand in than water! Water will force itself into the tip easier. Not sure what meat might do but it could be that the external pressure would just break off the tip allowing the remaining bullet to expand? Don't know? Find some meatRich
    Reply With Quote
      #21  
    Unread 09-12-2012, 09:46 PM
    Platinum Member
     
    Join Date: Jan 2008
    Location: Falls Church, VA
    Posts: 3,474
    Re: Long range bullet minimal expansion

    Quote:
    Originally Posted by elkaholic View Post
    They start as a tangent at the body/ogive and go to a secant to the tip.....Rich
    Both of us are right. I was describing the bullet from tip to body.

    My post was a correction of your earlier post where you said the bullet went from tangent to tangent.
    __________________
    I'm not gonna shoot here. I'm gonna shoot waaaaaaaay over there!
    Reply With Quote
    Reply

    Bookmarks

    Thread Tools
    Display Modes


    Similar Threads for: Long range bullet minimal expansion
    Thread Thread Starter Forum Replies Last Post
    Barnes Bullet eXpansion barnesuser28 Rifles, Bullets, Barrels & Ballistics 45 04-22-2012 02:59 PM
    low end bullet expansion velocities? demented Reloading 4 12-04-2009 04:48 PM
    Test for bullet expansion JDY Rifles, Bullets, Barrels & Ballistics 1 04-30-2008 08:45 PM
    Minimal press for Lee Collet Neck die at the range Alan Griffith Reloading 2 11-03-2006 09:10 PM
    Wildcat bullet expansion question Alucard Rifles, Bullets, Barrels & Ballistics 14 04-13-2005 01:01 PM


    All times are GMT -5. The time now is 02:45 PM.


    Powered by vBulletin ©2000 - 2016, Jelsoft Enterprises Ltd.
    Content Management Powered by vBadvanced CMPS
    All content ©2010-2015 Long Range Hunting, LLC