I also heartily recommend to stay away from Independence ammo. A primer jammed up my rifle at class and another rounds blew out the back of the case and destroyed my bolt while locking it into my chamber. That was fun!
I think that the Natchez deal of federal 223 62g FMJ (no penetrator) ammo at 3020 fps would fit Max’s ammo requirement. $299 for 1000 with 0.05 cents per round rebate (up to $200 per household so max 4000 rounds for full rebate) with a free shipping code of FS170170. So 1000 rounds federal at your door for a net of $250….seems like a good deal for range or practice ammo.
Reportedly the primer pockets are not crimped, so easy reloading on this brass if one is so inclined.