No offense taken!
I always tell guys go for the accuracy first. Wildcat chambers etc… it cracks me up when someone for example has a custom 280AI (before SAAMI spec in this case) is crabbing about not being able to get 2900fps with a 180gr bullet and the accuracy is .8moa but at 2825fps it shoots .3moa. Do you really think the deer at 200 yards is going to know the difference velocity wise of 75fps? I told the guy run it at 2825fps and he gets mad at me!
Again bore and groove size dimensions and chamber spec barrel to barrel can have a big impact on velocity. That’s why we run min. spec tolerances.
Ammunition not tested in spec barrels or barrels made to a production spec (bigger dimension) being put on guns will impact data.
I won’t even get into cleaning and reloading variables or bullet variables etc…
Later, Frank