It still shows promise from a small sample and an ES of 30 is acceptable.
I don't give group size much weight when I have a magnetospeed strapped to the barrel. I use one when starting load development just to get an idea of velocity, a flat spot in velocity and an indication of where it starts to peek with a small increase in charge increasing a lot in velocity or wild ES. After that I only use group size to test different charge weights and seating depth. Smallest group wins, not smallest SD or ES. Maybe someday I'll have a radar.
I don't give group size much weight when I have a magnetospeed strapped to the barrel. I use one when starting load development just to get an idea of velocity, a flat spot in velocity and an indication of where it starts to peek with a small increase in charge increasing a lot in velocity or wild ES. After that I only use group size to test different charge weights and seating depth. Smallest group wins, not smallest SD or ES. Maybe someday I'll have a radar.