I need some help determing which load to pursue tweaking. The problem is that for one load... the groups are more consistent, and for the other load, the velocity is more consistent. Right now I am in the process of determining distance from lands, and once I settle on this, I will begin working on powder loads. It's just that I've never had this much variation between consistent groups and velocity before.
Here's what I mean:
Both loads are the same, except load #2 is seated .040 off lands and #3 is .080 off lands. Both 308, once used Win Brass, WinStd primers, Varget 42gr.
Load#2 = Very consistent (2) 3-shot groups. .44" and .47"
= Inconsistent velocity. Min 2478, Max 2508, SD 13.5
Load #3 = Inconsistent (2) 3-shot groups. .04" and .92"
= Very consistent velocity. Min 2508, Max 2525, SD 7.0
So... normally, the best (2) 3-shot group typically provides me with the most conistent velocity and that would be the one that I would choose to work up power loads for. However, this time, the most consistent group load (#2), is less consistent velocity-wize, and the best load velocity wise (#3) is much less consistent group-wise.
I plan to shoot the final load at distances out to 600 yards, so a consistent velocity matters... however, so does group size.
Would you go back to the drawing board, or which would you select for powder tuning?
Any input and reasoning would be greatly appreciated.
Oh.... And I finally broke 1 tenth of an inch for a 3 round group. It's been like my own personal brick wall for all my years of shooting... So I'm having a good night regardless of my conundrum as to which load to start working up!!!!