I have had several debates (clip vs. magazine), here, over the years on this semmingly trivial, and yet, I think, importamt distinction.
While I am in agreement with you, the majority of our fellow freepers think I am being too pedantic, if not outright anal.
"Group" and "pattern" are other confused terms novices use. Group is the extreme spread of rifle or pistol bullets, pattern is what shotgun pellets make on a target.
I hate being at a gun range shooting my rifle and some joker comes up and asks me what kind of pattern I am getting.