I think they are already making it. The Barnes 110gr Vor-TX in 300 AAC with black tipped Tac-TX projectiles. One LGS had them at $30.99 and I bought up all 5 (other places had it at $32-$35/box) just to see how they do accuracy-wise, and also get more factory 300 AAC brass for reloads later on. The LGS has since raised the price to $32.99. Considering that other LGS's want $39.99 for Remington Premier Match 125gr OTM, I thought the price was reasonable.
[EDIT - Silly me, I misread Robo's post]
Actual bullet load:
http://www.barnesbullets.com/wp-content/uploads/2007/02/300-AAC-Blackout-110gr-TAC-TX.pdf
Range report upcoming... perhaps at the next Marana shoot.