[Burnt Powder]

I got to pretty much agree with Rocky about the pressure thing and all the guys that think the 223 I is a do-all, end-all chambering. Most of the folks who get fantastic performance out of any Improved chambering are fooling themselves. Few exceptions are the 6 mm AI, and the .257 AI. There just isn't that much extra room for powder in the 223 case after it is "improved". Heck, I can overload the std .223 and get it to do what the 223 Improved lovers are doing. There is just no free lunch in life, and the .223 Improved is no exception. If you are getting the 3900 fps performance out of it, you are greatly over loading the little trooper to do it. If you really think it is on the heels of the .22-250 you ought to overload a .22-250 to the same pressures you are loading the .223 Improved and see what you get with the .22-250 AI.

Notice I've not called the .223 Improved an AI. Ackley never "improved" it! That's someone elses improvisation.

Only real reason I see for a .223 Improved is because everybody else doesn't have one! That it's self is good enough for me!

BP