Stay far away from AAC!!!! I own four of 'em, I should know... They DO make a good can, I can't argue that. Maybe their direct thread stuff hits the mark. But their 51T ratchet mount is shit and kills anything good they bring to the table. There is a way to make it happen, buy ten mounts and find one that locks up well and send the others back. Sure it's costly up front but it's the only way to get a tight fit with an AAC can and not resort to filing, cutting, grinding, etc.
TBAC is the way to go, I'd at least get ONE TBAC can to begin with. Not just for precision either, their .30 cans work amazing as .300BLK SBR cans too as well as use on 6.5G (including an SBR) so I'd keep that in mind too. I'd go 9" and 5" Ultras unless you're on a budget, then just get the 7" and call it good. I use 9 and 5 on similar rifles, depending on what I'm doing or what I need out of it. It's good to have both.
IF you want a good abuse can that's not too expensive, STAY AWAY FROM AAC. Go with Sico instead, their Saker can is better in almost every facet, and I just got two last summer for $1300, including ASR mounts and muzzle devices for both (Saker is actually over built, they use Stellite whereas AAC and most others uses inconel --Stellite is what they line M2 barrels with!). F/A rated of course. IIRC my first Saker can when it was newer was around $1200 and that was just one with a Trifecta mount. If you wait until summer, the BOGO sale, you may be able to get one or two free cans too, depending on the purchase and deal through Capitol Armory and Sico. Now TBAC makes a new abuse 5.56 can but it's sorta costly if you can get two Sakers for the same or similar price.
Saker also locks up solid and FWIW, it works fine on a Recce rifle with a Lilja barrel and doesn't degrade accuracy, I still get subMOA results if I do my part.
Another one to look at is Elite Iron. Think of them as the TBAC of 316SS. Brings the cost down and the weight up (although not by too much really). Solid thread over brakes like TBAC uses. Attention to detail, will even TDC the can to the threads or brake, any color Cerakote is standard. No frills, no gimmicks, just solid cans made by a master. Lots of alphabet soup agencies use his cans too FWIW.
If you want the best all around and don't mind saving up for it, KAC is impossible to beat IMO. I'm amazed at the attention to detail and there's a reason it costs about twice as much too. It's the only one I know of that's light, can take abuse AND is suitable for precision. It does several things well, rare in the can world. But again, it ain't cheap, I just thought I'd mention it.
