I have an AR-15 in 5.56 with a 24" fluted barrel.
I have an AR-15 in .264 LBC with a 24" Black Hole Weaponry barrel.
I have a Savage M12 in .223 in stainless with 1 in 9 twist and 24" fluted barrel.
I have a Remington 700 in .22/.243 Middlested with a 24" Adams & Bennet stainless fluted barrel...