ORIGINAL: kelbro
I never understood the 'why' for an AI .243. The .243 is plenty fast. They shoot up to 100gr bullets over 3000fps for excellent killing power. I think that the powder manufacturers and the barrel makers are the only ones that see any REAL benefit from a .243 AI.
The same reason people buy Ultra Mags and Short Mags, the standard cartridges have done the job just fine, but some people just want something a little different.
