Thread: Trying something, Eric Cortina method of load development

All optical chronographs can be affected by light conditions. Except maybe infra red back lit ones.
Litz also suggests that wind can set up resonance in the sensor arms which can affect results.

As far as not getting on target I have the view that, particularly with for eg hot 7mm throat burners, that every shot fired is one shot closer to a buggered barrel so I try to minimize firing extra shots for any reason. As such, I would have used your first shots fired when doing your ES and SD testing to at least get hits on a target. Maybe EC's method of not firing anything resembling a group at the ES and SD stage is valid with kinder calibres?