G7 BC for new Sierra TMK bullets

[DW58]

Sierra publish BC figures for their new Tipped MatchKing (TMK) bullets, however I assume these to be G1 figures, e.g. the 155gr TMK (7755) is quoted as being 0.519

 

Is there a source which may have G7 BC figures for these new bullets yet?

 

Thanks in advance.

[Laurie]

I think the answer to that is 'no' until Bryan Litz can find some examples that he can buy. The only model he has got hold of to date is the 30-cal 155gn TMK and his average G7 BC result turned out to be the same as the existing 155gn Sierra Palma MK, #2156.

 

http://forum.accurateshooter.com/index.php?topic=3870909.msg36560827#msg36560827

 

He says the breakdown over velocity steps varies between the two models, but the overall average from 3,000 to 1,500 fps velocities is nearly identical. As Litz's G1 average for the Palma MK is 0.462, that is way down on Sierra's claimed figure.

[DW58]

Laurie you're a star - I have 500 of the 155gr TMK so that's answered my question, many thanks.