Is it possible to calculate velocity(approximately)by load data alone?
I'm thinking of buying the Swarovski Personalised Ballistic Cam for a .204 Ruger(have one for my .222 and like it),but don't have a chrony.
I'm using 32gr Blitzkings with 24gr of Vit N130 out of a 20 inch barrel. Would say 100fps difference make a big difference on bullet drop at 400yds? Thanks