“...Introducing a variable not mentioned before to prove what, exactly.”
You referenced it in your response ton a post that brought it up.
Both of you dismissed the E-W elevation correction.
My point was that an elevation correction is required.
Yes, you are correct, if there is a difference. But there was no mention of a difference in altitude, if any. If there was, of course it would be factored into the equation. This is one of the tables in a sniper's handbook.