JFrank
Member
I can't speak for short range NBRSA or IBS but Long range has no app scoring just center to center measuring.Download a group measuring app on your phone. Much easier. You just need a reference in the picture that you know the size of. Then use the correct diameter bullet model and outline the holes.
View attachment 991676Screenshot_20210329-141840_Range Buddy by chase, on Flickr
View attachment 99167720200301_140051 by chase, on Flickr