Thread: OCW Load Testing

No affect on accuracy (except maybe a really thin whippy barrel and then you have other issues at any rate). Done all my recent load development with one attached. Initially also set up my IR CED but no longer bother. Recently shot .15MOA group at 100yds with it attached to my 6.5x47L. Shot regularly with it attached to my 284 F Class rifle out to 800yds and no effect on accuracy. The only affect is the device causes slightly high elevation - 1.5MOA @ 800yds (actually movement away from the sensor). Much better than the variable day to day results you get with an optical chronograph which leaves you wondering if it is the chronograph, the atmospherics, ambient temperature, powder temp susceptibility and so on and so on but in most cases is the optical chronograph.