I Kinda agree with some with the 243, it is a good round in a custom built rig with proper twist. I have never been a speed kills type and always shoot the highest BC bullet made for that given caliber (if I can get the velocity I am looking for to capitalize on the BC). However, Hornady addressed this shortcoming with the 6 Creed. It is a more efficient cartridge design, allowing use of the modern high BC bullets with the ability to feed in about any standard SA mag seated to or closely to the lands! With the same performance velocity wise as the 243, quality brass available just like 243, and factory rifles ready to roll with fast twists. Whats not to like? Most people that really like the 243 are the light bullet shooters so in that instance then most factory 243s will work for you in that aspect. But if you want to shoot 243 with high BC stuff you got very limited options in factory offerings. This is a double edged sword, if you are wanting to shoot the high speed light stuff in the creed in a factory offering you might come to realize that fast twist may not work for you either! Decisions, Decisions.