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Balistics
Posted: Tue Apr 25, 2006 1:59 pm
by balcom
Does anybody know the B C of 130grn Norma Diamond Projectiles.
PeterH
Posted: Tue Apr 25, 2006 3:44 pm
by bruce moulds
hi,
i believe tha norma has a 130 gn boat tail match bullet with a higher bc than the sierra 142 6.5.
would be greatly interested in getting some if you know where.
bruce.
130grn Norma
Posted: Tue Apr 25, 2006 4:19 pm
by balcom
bruce moulds wrote:hi,
i believe tha norma has a 130 gn boat tail match bullet with a higher bc than the sierra 142 6.5.
would be greatly interested in getting some if you know where.
bruce.
Hi Bruce
Thanks for the info, I cant read swedish so I thought I would ask.
I use them every now & then and they shoot about the same elevation at 900yds as the 139 lapua.
I get them from Rebel Gun Shop, Woolongaba in Brisbane, last buy at $38.00 per 100 by the 1000 + F
I still dont know thier BC.
PeterH
Posted: Tue Apr 25, 2006 10:35 pm
by AlanF
Norma DiamondLine 130g has a BC of 0.548.
SMK 142 is 0.595 (conservative).
Posted: Tue Apr 25, 2006 10:42 pm
by bruce moulds
peter,
sorry about that.
iwas sure i was right, but numbers speak louder than memories.
bruce.
Posted: Tue Apr 25, 2006 10:56 pm
by AlanF
Bruce,
You may have been confusing it with a solid copper 6.5mm bullet 108gr BC 0.598 which has been mentioned on the 6mmBR site recently.
http://home.snafu.de/l.moeller/6,5-mm/6,5-284-KSG.htm.
How good is that? Nearly 3500fps with a 0.598 BC bullet. However the jury is still out on how accurate (or not) they are!
Alan
BC
Posted: Wed Apr 26, 2006 7:54 am
by balcom
AlanF wrote:Norma DiamondLine 130g has a BC of 0.548.
SMK 142 is 0.595 (conservative).
Hi Alan,
Thanks, where do you get the info from.
PeterH
Posted: Wed Apr 26, 2006 8:45 pm
by AlanF
Peter,
Click on
http://www.norma.cc/sida/eng/index.html then click
BALLISTIC on the top menu line, then
Ballistic on the second menu line. Wait for it to load then click
ok on
Match bullets, then click on
.264 Diamond Line 130gr and the
Ball. Coefficient will display near the top left of screen.
They certainly make you work for your information at Norma
!
Alan
Posted: Thu Apr 27, 2006 2:06 pm
by balcom
AlanF wrote:Peter,
Click on
http://www.norma.cc/sida/eng/index.html then click
BALLISTIC on the top menu line, then
Ballistic on the second menu line. Wait for it to load then click
ok on
Match bullets, then click on
.264 Diamond Line 130gr and the
Ball. Coefficient will display near the top left of screen.
They certainly make you work for your information at Norma
!
Alan
Thanks Alan