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

ballistic coefficient questions . 6.5 mm bullets

LinkBack Thread Tools Display Modes
  #1  
Unread 01-12-2013, 06:24 PM
Gold Member
 
Join Date: Nov 2012
Location: Copper Basin, Alaska
Posts: 838
ballistic coefficient questions . 6.5 mm bullets

So since getting my 6.5 Creedmoor I've been studying the bullets that hopefully will work best for my purposes.
When checking the BC of many bullets I found what appears to be a misprint. But since I'm not to good at math I am hoping someone who understands this could explain it. .the 2 bullets in question are the 140 gr Hornady SST and the 130 gr Sirrocco II.
the SST has a BC of 520 and the Swift's BC is 571 .
The SST is longer than the Swift and appears to be more streamlined. What is the cause of the. 05 difference.

Thanks in abvance.
Reply With Quote
  •   #2  
    Unread 01-12-2013, 06:29 PM
    Gold Member
     
    Join Date: Mar 2010
    Location: SWWY
    Posts: 899
    Re: ballistic coefficient questions . 6.5 mm bullets

    Swift has grossly inflated their BC's for years. You will find if you shot them at yardage they are not even close to as advertised.
    Reply With Quote

      #3  
    Unread 01-12-2013, 07:18 PM
    Gold Member
     
    Join Date: Nov 2012
    Location: Copper Basin, Alaska
    Posts: 838
    Re: ballistic coefficient questions . 6.5 mm bullets

    OK, so would the real world BC of the Sirrocco bullet be similar to the 130 gr AccuBond. ??
    Reply With Quote
      #4  
    Unread 01-12-2013, 07:23 PM
    Gold Member
     
    Join Date: Mar 2010
    Location: SWWY
    Posts: 899
    Re: ballistic coefficient questions . 6.5 mm bullets

    I can't answer that as I have no experience w the accubond. I'm not a Nosler fan at all. Sorry I'm no help on this.
    Reply With Quote
      #5  
    Unread 01-12-2013, 07:47 PM
    Gold Member
     
    Join Date: Nov 2012
    Location: Copper Basin, Alaska
    Posts: 838
    Re: ballistic coefficient questions . 6.5 mm bullets

    No, I really appreciate it. I got a box of the Swifts because they had such a high BC listed. When camparing them side by side with the 140 SST they werent anything to write home about. .

    I see Nosler is making the 140 gr AB
    Reply With Quote
      #6  
    Unread 01-12-2013, 07:58 PM
    Platinum Member
     
    Join Date: Nov 2008
    Location: SW Montana
    Posts: 5,515
    Re: ballistic coefficient questions . 6.5 mm bullets

    You really owe it to yourself to try the 140 Berger in a 6.5, it's BC is nuts on and the performance is hard to beat, my dad's been through a lot of bullets in his 6.5 Sherman and just keeps coming back around to the 140 Berger.
    __________________
    "Pain is weakness leaving your body"
    Reply With Quote
      #7  
    Unread 01-12-2013, 08:02 PM
    Gold Member
     
    Join Date: Mar 2010
    Location: SWWY
    Posts: 899
    Re: ballistic coefficient questions . 6.5 mm bullets

    Quote:
    Originally Posted by bigngreen View Post
    You really owe it to yourself to try the 140 Berger in a 6.5, it's BC is nuts on and the performance is hard to beat, my dad's been through a lot of bullets in his 6.5 Sherman and just keeps coming back around to the 140 Berger.
    +1 on the VLD.
    Reply With Quote
    Reply

    Bookmarks

    Thread Tools
    Display Modes



    All times are GMT -5. The time now is 07:02 AM.


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