does anyone know where i can buy so barrett 6.8 ammo seems very hard to get these days
No idea where you’d find the Barrett, specifically…and on top of that, most places seem pretty much out of 6.8 from what I’ve seen - Midway USA is totally dry, so is Ammo To Go. However, it does look like Silver State Armory is still selling on their website…maybe take a look at what they’ve got in stock and see if any of it suits your needs…
Palmetto State Armory had some a couple weeks ago - it was the 115 grain sierra OTP