Ya Jeff, I seen one of those A1 uppers cut off and tapped, crewd but it was a start. Know the guy who had it and may try to pick it up for nostalga.
On another note have you heard of the 22pdk? It's the 6.8 necked down to 22 cal and is supposed to bring 22-250 ballistics. Lots of options.
i played with 7.62x45 necked down to 22. Beats the 6.8 necked down but nothing close to 22-250. Comes in about halfway between 223 and 22-250. Uses a 7.62x39 bolt and 6.5 Grendel mags.
![[Linked Image]](http://guntech.com/ammo/5.7cz.jpg)
Compared to 223 (on the right)
![[Linked Image]](http://guntech.com/ammo/5.7-223-1.jpg)
