I just chronographed some new .308 loads using Hornady 168 BTHP Match and 44.0gr Varget. They grouped very well at .390". But I'm a bit concerned with the velocity/pressure. 5 shot string averaged 2901, with a 50ES. According to Hodgdon data, I should be at 2731 with a max load of 46.0, (using a Sierra MK) ???? I chose the middle of the road 44.0 because 1) I'm using LC brass, and 2) because the Hornady bullet seats deeper into the case when loading to the lands.
I can't see any pressure signs, no sticky bolt, easy extraction.
Which is more likely.....
1) data is off
2) my chrono is off (Chrony)
3) I'm actually over pressure and don't know it
FWIW....43.5gr Varget shot like a shotgun, 43.7 slightly better, 44.0 is GOLDEN, 44.3 slightly worse.
Rifle is a DSG #11VT .308

Can anybody run some ballistics for me and make an educated guess as to what's going on?