A couple of things:
I don't see any of those bullets showing signs of contact with the lands. You suggest you thing your rifling may start at 1.985", but you are getting bullets in longer and still without marks, so I think that 1.985" is significantly short. If you are making the determination with the Hornady Lock N' Load OAL Gauge, one thing I have found with the match chamber on my 223 Rem course gun is that I can push the bullet into its chamber with that gauge and have it hang up on the entry to the freebore, giving me a false short reading' short enough that if it were real, some commercial ammo wouldn't chamber. The fact your bullets appear to be scuffing on that same corner tells me you may be suffering from the same thing. The way I solved it was to loosen the thumbscrew and push the bullet out beyond what the apparently false reading position was and then tightened it again. I then set the rifle muzzle-up with the toe of the buttstock on the edge of my bench and insert the gage straight up and wiggled it when the bullet started to catch and until I felt it slip in beyond that catch point. Once it was there, I kept the gage in place with one hand while I set the rifle in a cleaning cradle (laying it on the bench would be fine). I then loosened the thumbscrew again and finish seating the bullet and gage case forward and tightened the screw again and was able to get a measurement that matched my experience with it.
I note that your photos appear to my eye to show the bullet seated perhaps too far into the case. That uses up powder space, and if you use too much seating depth, it will raise the peak pressure just the same as if you seated the bullet out too close to the lands. Based on that appearance, let me suggest another approach to try. Put the bullet in the OAL gauge adapter case and adjust the sliding ram until you have the bullet makers recommended COL from the case head to the tip of the bullet and tighten the thumbscrew. Make the base-to-ogive measurement and figure any result you get that is shorter is probably due to the bullet hanging up. After all, the bullet maker uses that number in their loaded ammo for sale, so it has to be compatible with any standard chamber. Next, slide that setup into the chamber and wiggle it, if necessary, until the case slips in all the way. Then, as above, loosen the thumbscrew and push the gauge ram forward until the bullet stops firmly. Tighten it again and pull it out and measure what you have.