Load data and speeds from my 6mmBR

[shooter65]

6mmBr Load Data:

Barrel - 26'' Shilen S.S. .272 neck 8 twist.

Bulllets - 105 gr Berger VLD.

Varget:

30.0 - 2824 fps ***** best group at 100 yards.
30.2 – 2840 fps
30.4 - 2867 fps
30.6 – 2890 fps
30.7 – 2898 fps

Factory Lapua 90 gr – 2978 / 2935 fps

Factory Lapua 105 gr. – 2894 / 2883 / 2907 fps


Coal – 2.403

With Sinclair bullet comparator – 2.737

 

[Bob3700]

We chrono'ed a new 6mm BR rifle today.

30 inch Bartline Bbl, 5C rifling with 8 twist.

New primed R-P brass

30 gr. Varget

107 SMK Naked

Chamber is a .272 neck.

Average velocity 2807 fps
SD was 7 fps for 15 rounds over an Oehler 35P

BBL has less than 60 rds down the tube.

Bob