Reloading .308 Winchester using Lapua brass, 43.3 grains Varget powder with CCI BR primers and 175 gr SMK.
The rifle is a Savage 10 FCP-K with 24" barrel with the brake removed and using a AAC Cyclone suppressor.
I am shooting through a Caldwell chrony and my range in Colorado is about 6400ft in altitude.
I am curious if the fps that my chrony is giving me is too high for this particular load and do I need to back off the powder charge and retest for accuracy nodes. The Hodgdon manual says that 42 grains is the starting load and I read that you need to back off a few percentage points because of the Lapua brass so I ended up starting at 41.1. Also per the manual the max load is 45. The fps per the manual at max load is 2690 fps. I am getting consistently around 2730 fps using 43.3 grains with my rifle.
Does this sound ok considering the difference in load and I'm pretty sure Hodgdon did not test at my altitude? I had another accuracy node at 42.2 grains but it was better at the 43.3.