Re: predator rifle
chas1 and roninflag are right on. The 1-10 will shoot all those well. I don't know that there would be much barrel life difference between the 243 and the 243AI. The AI shoots fine with standard 243 ammo so your not really waisting a shot. You wouldn't want to do it shooting competition but at predators fine. You will enjoy either. Good luck with it.
Predictions are difficult, especially when they involve the future