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

Need the BC of the 338 250 gr Lapua scenar

 
LinkBack Thread Tools Display Modes
  #1  
Old 10-27-2003, 10:06 PM
Platinum Member
 
Join Date: May 2001
Location: Pennsylvania
Posts: 1,757
Need the BC of the 338 250 gr Lapua scenar

Hello

Does anyone have the BC of the Lapua 250 gr 338 Scenar bullets?

This one is not on my Oehler program

I have one listing that says it's .655 but I don't think it's that high.

Later
DC

[ 10-27-2003: Message edited by: Darryl Cassel ]
__________________
Darryl Cassel
Reply With Quote
  #2  
Old 10-27-2003, 10:22 PM
Silver Member
 
Join Date: Apr 2003
Location: Newburgh NY
Posts: 235
Re: Need the BC of the 338 250 gr Lapua scenar

The ballistics program I have says .675 for the BC
Reply With Quote
  #3  
Old 10-28-2003, 02:49 AM
Silver Member
 
Join Date: Dec 2002
Location: Finland
Posts: 179
Re: Need the BC of the 338 250 gr Lapua scenar

Thatīs correct,H-BAR. I donīt know how much itīs dependent on the velocity but I can get that info from Lapua if needed.
Reply With Quote
  #4  
Old 10-28-2003, 09:49 AM
Silver Member
 
Join Date: Dec 2001
Posts: 469
Re: Need the BC of the 338 250 gr Lapua scenar

Exbal says .675 also.
Reply With Quote
  #5  
Old 10-28-2003, 10:16 AM
Platinum Member
 
Join Date: May 2001
Location: Pennsylvania
Posts: 1,757
Re: Need the BC of the 338 250 gr Lapua scenar

Thanks guys, appreciate it.

May send a few across the mountain today at 3250 and 3300 FPS.

That might just reach out and touch something.

It won't be as good as the 300 gr MK but, the 250 gr may be a happy medium out to 1400 to 1500 yds and then the 300 gr will take it from there.

Thanks again
DC [img]images/icons/smile.gif[/img]
__________________
Darryl Cassel
Reply With Quote
  #6  
Old 11-04-2003, 10:08 PM
Bronze Member
 
Join Date: Aug 2001
Location: Winnipeg, MB
Posts: 41
Re: Need the BC of the 338 250 gr Lapua scenar

Based on dope I have shot, I believe .620 tracks better. I'll have a peek.
Reply With Quote
  #7  
Old 11-05-2003, 07:35 PM
Silver Member
 
Join Date: May 2001
Location: NC
Posts: 352
Re: Need the BC of the 338 250 gr Lapua scenar

Darryl,
Don't know if you still need this data but I've got actual Oehler M43 data for the Lapua 250s with acoustic screens at 300yds to give actual measured BC through a 10 twist barrel:

2 seperate strings

(1) 10 shot string: MV Avg 3030fps
BC - avg: .620, hi: .632, low: .604

(1) 8 shot string: MV Avg 3074fps
BC - avg: .620, hi: .639, low: .610
<This string was molied>

Looks like Mr. Altstadt was right on the money with his BC of .620 that was reverse engineered from known drop. But this does vary from one barrel to the next. But this is a little more than just a ballpark figure.

good luck!

Steve
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Similar Threads for: Need the BC of the 338 250 gr Lapua scenar
Thread Thread Starter Forum Replies Last Post
300 SMK VS 300 Lapua Scenar Chas1 Rifles, Bullets, Barrels & Ballistics 8 08-02-2010 08:15 PM
lapua 123 Scenar. kdog70 Rifles, Bullets, Barrels & Ballistics 0 01-11-2010 09:43 AM
105 lapua scenar Jimm Rifles, Bullets, Barrels & Ballistics 1 07-12-2005 07:43 AM
Lapua Scenar 185 grs Thierry Long Range Hunting & Shooting 1 04-15-2004 06:11 PM
lapua scenar BRANDT GURR Rifles, Bullets, Barrels & Ballistics 2 07-16-2002 08:29 PM


All times are GMT -5. The time now is 01:35 AM.


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