COL Rem 700 AAC SD 308 20" custom load

[yotasan]

Anyone on here have experience with loads for this rifle? I found that the seating depth off lands is greater than the COL length in reloading manuals. From what I remember Lyman and Hornady manuals show COL MAX @ 2.800" for 168gr SMK. When I use an expanded case to seat my bullet to the actual lands, my COL length is over 2.9" which is a significant difference. I'm wondering if anyone else has noticed this? Do you just make your COL 2.800" or do you single feed and bypass your magazines entirely? My magazines will not fit anything longer than 2.800" COL. Magazine is Magpul PMAG AC. Goal is to get most accurate loads for precision shooting.