You must be shooting a weak 235 gr load.

A 250 gr TTSX full house 375R load will shoot as flat at 2850-2900 as any other caliber with the same BC of around .425 at that speed.
A 250 gr TTSX running at 2850 zeroed at 100 yards will drop 3" at 200 yards.

The right 375 R load zeroed at 200 yards pretty much matches the substentions for the PA 1-6X scope above.