Remington has missed the boat for years by only offering their .223 with a 1:9" twist. Good enough for out to 600 yards with 69 gr bullets and maybe 75 gr bullets if you use 2 scoops of powder.
Quite a few TR shooter are revisiting the .223 and using 1:6.8"-1:7" and 1:8" twist barrels and shooting 80 gr, 85.5 and 90 gr bullets and are winning.
Quite a few TR shooter are revisiting the .223 and using 1:6.8"-1:7" and 1:8" twist barrels and shooting 80 gr, 85.5 and 90 gr bullets and are winning.