@diggler1833 My factory 65cm barrel was no star either, moa to a bit less with factory match for 10 shots, a custom barrel in same cartridge shot groups half the size with same ammo. I picked up a wintac 6br pipe, it shoots well, as does the custom 6gt barrel I had spun, it's consistently 1/3 moa on paper at 400y, almost no load dev. That's made me more tolarable about the few short comings with the rifle, or AI in general.
Most high end bolt gun manufacturers in the states, have the vast majority of their sales to the public, they know good customer service and parts availability is key to success in such a niche industry. A bad reputation spreads very quickly.
The public consumer of AI rifles is likely less than 10% of their sales. The majority is gov contracts and private security forces around the world. That's who they're going to cater to and make happy. The defense budgets allow them to buy without remorse, resale value, repairs, parts aren't much concern, as long as failure rates are within expectations. Perhaps the militaries get priority in extra bolts or components, hence the reason with have such low availability on the public side.
Maybe I'm way off base, but money always talks.