Long Range Hunting Online Magazine


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


Reply

BC 's effect on POI

 
LinkBack Thread Tools Display Modes
  #8  
Old 01-31-2004, 01:06 AM
Platinum Member
 
Join Date: Jun 2001
Location: Palmer, Alaska
Posts: 2,539
Re: BC \'s effect on POI

Winmag,
If that Barnes BC isn't inflated like most all of theirs are, by a long ways, (you are being forewarned here [img]images/icons/wink.gif[/img]) accuracy will still probably be a problem with their BT bullets. The FB bullets seem to do OK, but getting the boattails to shoot can very often be a real B&^ch!!

I would guess the XBT 140 to have a BC of about .450 if you're lucky! [img]images/icons/wink.gif[/img] The A-Max, SMK and Lapua seem to be real close, sometimes a bit higher in the real world too... Barnes is not that way.
__________________
Brent Moffitt
Reply With Quote
  #9  
Old 01-31-2004, 06:39 AM
Platinum Member
 
Join Date: Dec 2001
Location: Long Island, New York
Posts: 2,099
Re: BC \'s effect on POI

It may be me but I have also found that Barnes is a little optimistic about the velocities that are published in their manual.
Inflated B/C's
Inflated velocity
Inflated ego [img]images/icons/rolleyes.gif[/img]

They do, however, penetrate like crazy. I have never recoverd a single X bullet from a whitetail. Probably should stop shooting those little critters with my 7STW and those big copper bullets. [img]images/icons/grin.gif[/img]

VH

[ 01-31-2004: Message edited by: Varmint Hunter ]
Reply With Quote
  #10  
Old 01-31-2004, 01:31 PM
Platinum Member
 
Join Date: Mar 2003
Location: Southern Wisconsin
Posts: 1,296
Re: BC \'s effect on POI

Thanks for all the great input. I think I'll still try a box of them, I just won't get my hopes up.
Chris
__________________
Ignorance can be treated with education, sadly there is no cure for stupidity.
Reply With Quote
  #11  
Old 01-31-2004, 02:22 PM
Platinum Member
 
Join Date: Jan 2003
Location: The rifle range, or archery range or behind the computer in Alaska
Posts: 3,418
Re: BC \'s effect on POI

Part of the reason the BC is inflated is that they are solid copper. They have a much differant specific gravity factor. It also takes a tighter than normal twist to get good stabilty out of em too becasue of this. If they were the length they are and jacketed lead, they would be the advertised BC and they would use a twist formula most of us use.

They do smoke coming out of the barrel though. Have had 2900 FPS out of a 26" 12 twist 308.
__________________
Quote:
Originally Posted by Broz View Post
Please just answer one very simple question. Why would anyone shooting long range load a low BC , low SD 168 gr offering in a 300 win???????

My answer to this is. The only reason is to make the 7 RM look good. There is no other reason.

Jeff.
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Similar Threads for: BC 's effect on POI
Thread Thread Starter Forum Replies Last Post
damaged tip effect accuracy? dmproske Reloading 5 11-20-2008 03:32 PM
do primers effect accuracy? diderr Reloading 9 02-02-2008 10:49 AM
SMK effect on shorter ranges? Diezel Rifles, Bullets, Barrels and Ballistics 3 12-08-2007 02:32 PM
Coriolis effect Blaine Fields Rifles, Bullets, Barrels and Ballistics 46 03-17-2007 01:22 AM
Magnus Effect vs. Spin Effect Brent Rifles, Bullets, Barrels and Ballistics 2 12-26-2002 05:27 PM

Current Poll
Do you wear hearing protection while hunting?

All times are GMT -5. The time now is 10:44 PM.


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