Don\’t take any load data at face value, particularly COL. Certainly the COL of your loads is important, but only you can determine the proper measurement for your barrel and bullet combination. Use the plunk test. If the listed COL is significantly different that the one that you determine works best for your ammo/gun, you need to adjust your powder charge accordingly. Using a listed COL can be very misleading, and can get you into reliability and even high pressure issues. Guns, barrels, chambers, and bullets vary. There can even be lot to lot variations of the same make and model of bullet which will affect the correct seating depth.