New Longest Confirmed Sniper Kill

[THEIS]

.581bc G1(just what I found online, so this was a matter of some question for me)

Hello BG,

It appears you found the pre 2001 BCs from Dean M, ballistic cards ..but that was when MV was only 2680fps. Post 2001 the BC increased due to the revision/increase in pressure ratings loaded to..along with VERY SLIGHT projectile change.

The .670 BC is from 2008 RUAG test facility radar data.


THEIS

 

[BallisticsGuy]

Mucho grazi. Did the MV change as well?

 

[THEIS]

Mucho grazi. Did the MV change as well?

Hello,

Pre 2001 MV was around 2680fps but today ATK reports velocity measured at 78 feet from muzzle to be 2905fps. The Mk211 Mod 0 has a +/- 30fps and the Mk211 Mod1 has +/- 50fps..both at 70 +/-2 degree F

THEIS