A couple things going on here.
Either I need to shoot more, and/or I'm getting some significant variation in the ammo muzzle velocity. I'm leaning towards me rather than the ammo, since I've run this ammo over a Chrony, and it's pretty consistent round to round. That vertical spread tells me I'm not controlling my breathing/trigger squeeze as well as I should. I'm out of targets however, so I'll have to remember to pick up another pack of Dirty Bird next time I go into town.

