Thread: Barrel chop

Originally Posted by 6.5 CRD

Yeah your not wrong, Optical chronos can be a pain in the ass.

Calculating velocity from shot drops can work but its not a very accurate way of doing things imo. Alot of variables & not only that, need to shoot at some serious distance to try filter out the noise. 200y just isnt enough distance to give you an accurate idea of velocity. Difference in drop with the 150gn Sierra at 2600fps vs 3000fps is less than 3/4 of a minute at 200y. Most peoples cant shoot a 3/4 minute group, let alone have a rifle capable of doing so consistently.

yup fair call on the distance thing but probably still more accurate than an optical , I don't use distance for my initial velocity verification it as I have a magnetospeed, obviously drop should always be confirmed by actually shooting at range.