I saw that somebody wrote that a .243 drops 11" at 300yds....I am using the Remington Model 7 .243 with remington 100grain psp. and we put it in a vice. and bore sited it in, and at 300 yds it out shot the 270, 30 06 and 300, it only dropped 2.5" where did you come up with the 11"
What did you sight the .243 in at? That would be the main thing on this statement! You woulda had to sight it in at 200 or 300 yards to hit like that! And if you did, you liable to miss one at 50 yards

Were all guns sighted in at the same distance? I will agree that a .243 is a more flat shooting gun, but it just doesn't hold up to the distance!
I've got a Remington 243 and 7 mag. both sighted in at 100 yards! At 300 yards, I can put the 7mm in about 2 inches below a circle the size of a half dollar! The 243 will drop in anywhere from 9 1/2" to 11" every time!!!
Also, at 300 yards with a 243, chances are you won't have an exit wound! Don't get me wrong, they are a fine gun and I enjoy using mine alot!!!