When ever I hear someone who is "miss informed" about something (particualrly hunting/shooting) I try to educate them. 1. it will help them out 2. it may stop them from "miss informing" others. Walking away to hit my head against a wall will not do anything posative for anyone.

"A picture is worth a thousand words" really applies to explaining the path of a bullet in this situation.

The line of sight
The line of the barrel
The path of the bullet

drawn on a scrap of paper helps a lot to explain the "bullet rise" and also to show the big advantage a .270 has over a 30/03 when shooting at deer at longer ranges.

Robin