I do and have been for over ten years, I still like it. Far superior to the .223 in every way. I don't know about ammo availability as I have been reloading it for many years. Excellent hunting rifle for anything in NYS, with the AR platform, light, rugged, dependable, and the more you kick it around, the better it looks.
Robin
I also have been shooting it for about 10 years. Kills deer well, accurate. Easy to reload.
No issues find ammo, I hunt deer with it, so maybe shoot 5 rounds a year at most.