Tulammo is on the cheap side they say this on their website:
"TulAmmo rifle cartridges are often thought of as "cheap" ammunition. We find that somewhat ironic. Cheap ammo is typically unreliable and can't be trusted to perform, or for that matter, even function. Yet time and again we hear that our rifle cartridges are the one that shooters choose to purchase in bulk over other so-called "cheap" brands. Performance AND economy - TulAmmo."
Maybe have him try some reputable domestic brand ammo i just sighted in my Ruger american predator in .308 last weekend and it fired Federal powershock, Hornady superformance and Federal match ammo all flawlessly. Also Google Tula ammo not firing lots of results will show up.