My 168gr Berger VLD hunter hybrid from Setpoint ammo is 2.8 OAL with a Federal case
Their Barnes TTSX is set the same for me, on a Lapua brass case,  and both behave well on target.
I suppose you could sneak closer and see.

I am not a reloader myself, but a friend who does my loading for 300WM makes a big point that the shape of the ogive and how it impacts the chamber determines the selection of the eventual OAL. He has some measuring devices that he uses for each bullet, whether they be shaped like a VLD or heftier farther towards the tip like a Sierra GameKing.
The COAL that I chose for the 168 VLD is a midpoint offering by the Setpoint company, which allows for a length of 2.75 to 2.90 for the .308s that they offer. https://setpointammo.com/custom-rifle-ammo .
One thing they mentioned was that the OAL tended to be “nominal” with a newer rifle, and lengthened as it aged, or if the results of a given load type deteriorated over time.