120 class powders

[teppou]

Ok thanks guys. I feel like I should just sell the magnetospeed and buy another chrono. It works fine but it trashes my groups. Would be nice to get group size and data in one trip. I was careful loading and recording the data. The only thing that could have possibly happened is rounds maybe out of order. Don’t see how it could have happened.

I suppose you could try a mounting system like the Wiser Precision or the MK Machining mounts. They attach to a rail instead of the barrel, and theoretically wouldn't mess with your groups. I seem to remember some folks here don't think the magnetospeed has any effect in the first place, so your mileage may vary.