I disagree about the .223. My .243 gives better groups at 100 yards, 200 yards, and 300 yards. The .223 startes spreading bad after 200 yards. At 250 they also start falling fast. At 300 yards I'm lucky to hit the paper. With the 243 I still have a 3" group at 300 yards, and 5" at 400 yards. I have 6X24X50 scopes on both barrels, same reciever and trigger.