opinion on designing wildcat with zero freebore

[constructor]

What do you guys think about someone designing a 22 or 6mm cat for use in an AR15 with zero freebore?
They would probably used for hunting more than anything.
I don't like the idea of a zero freebore because the bullets have to be set so close the the lands to align them on the bore and the bullets are set deep in the case. The mags allow loading to 2.3" but some of the shorter bullets would need to be loaded to 2.2" just to keep them out of the lands.
If we were talking a bench rest bolt gun shooting VLDs jammed into the lands it would be a different story.

 

[Eddie Harren]

http://www.saami.org/pubresources/cc_drawings/Rifle/300%20Winchester%20Short%20Magnum.pdf

This cartridge has no freebore.

 

[5spd]

My BHW 6x6.8 AR15 build has no free bore, my magazine COL is at 2.270" and accurate as heck. Its my new build for coyote/antelope. They make the 22x6.8/25x6.8/30x6.8 etc....not sure if they have any free bore either.