I think I watched the video you were talking about. In it they were starting with an unknown velocity and truing it off of drops. What chronograph are you running? If it’s quality that should be an additional variable you’ve eliminated and no need to “Tweak” Velocity. Published BC’s have treated me well but BC is what you should change if every other variable has been eliminated. Somebody call me out if I’m off base, but I think velocity should be a known.Excuse me but, I am 74 years old and entered the use of the word "tweak" into my vernacular at an early age while growing up on a farm. Basically, the word was used to convey fine tune, adjusting to tighter tolerance, improving performance and, well, you get the picture. Perhaps, for people like you who prefer to have articulately composed comprehensive responses, after identifying traits of expression I use from time to time, it might be easier for you to avoid reading any responses written by me. Oh, just so you know what I meant, by the way, is I make an adjustment of the muzzle velocity input in my ballistics table. I have also used adjusting the BC as well but, in the field in a hurry, this works for me. I believe Gunwerks has produced a video explaining how to do it.
You don't mean to be rude? Why are you?