reloading question

[65hunter]

i have a aa barrel with the shilen upgrade 24 inch long im wonder if 2.17 coal is common with these barrels using 120 nolser bt and 120 sierra match kings or is mine just chambered short. theres is no accuracy problem it shoots wel under an inch

thanks in advance for any help

[seatleroadwr]

My COL was shorter before i cut the throat longer. COL on my rife for Sierra 120s was 2.200 abut .010 of the lands.

[65hunter]

what barrel are you using?