While waiting for my suppressor approval I have been working on a subsonic load.
The problem I have been having is the cold bore shot is consistently 950fps and 6 moa low vs. the following 1050 fps shots.
This has been consistent now for 4-5 sessions. It doesn't matter if the bore is clean or fouled it's still the same.
Is this a common occurrence or just a problem that I am having?
308 load data:
Winchester brass
10.8 gr. Trail Boss
210m primers
Hornady 180 rn
The problem I have been having is the cold bore shot is consistently 950fps and 6 moa low vs. the following 1050 fps shots.
This has been consistent now for 4-5 sessions. It doesn't matter if the bore is clean or fouled it's still the same.
Is this a common occurrence or just a problem that I am having?
308 load data:
Winchester brass
10.8 gr. Trail Boss
210m primers
Hornady 180 rn