ORIGINAL: metro
Wow, I just crunched the numbers for my .30-.30 and it looks like it beats out the .243 at 200 yards too! Maybe you oughta hand that .243 down to your daughter.
Metro
Using federal 100 gr sierras' BT
The.243's velocity at 400yds is the same as the .30-30's at the muzzle . The .243 energy at 500yds is the same as the 30-30's at 200 yds.
ya I'd say your TKO#'s are bunk.