I went through this about a year and a half ago. I exchanged
messages with several folks on the web regarding 6x45, and
6mm WOA. I went with 6mm WOA, because I figured if I had to
form brass, I may as well go with a case design with more
capacity. Besides, I am a huge fan of the 6.8 SPC, so I have
plenty of brass to work with.
I just started developing an 80 gr. TTSX load, for a Fall
antelope hunt, and have worked up a number of loads in
varmint/predator weight bullets. I have no doubt if a
243 Win, can kill a deer, a 6mm WOA can too. As for this
rifle, it is quite accurate, and easy to find loads with
more than sufficient hunting accuracy. It puts 68 gr. Bergers
into one hole on a regular basis. If I get a chance, on
my way out to WY this Fall, I might stop in SD and see how
well the 6mm WOA launches prairie dogs, with these 68 gr.