Coyotoe Joe,
I have an early model (1935) Remington 141 as well as a 1980 production model Marlin 336, both in . 35 Remington. Inspection of my two rifles leads me to believe that the Marlin is a stronger action than the Remington. To each his own I suppose and I won't argue that point. We all know the dangers of exceeding loads listed in manuals and those that do so run the risks associated with it.
I am curious why the arbitrary benchmark for the 200 grain bullet of 2200 fps and such strict adherence to the same. Specifically, with a group measuring .8" (at 50 yards) and falling short of the 2200 velocity by 36 fps, why didn't you just stop there? My Remington has open sights and honestly, with that platform, I'm quite happy with a 2-3" group at 100 yards (again with open sights). My Marlin with open sights tends to turn in a better group, around 1.25-1.5". I understand having a benchmark for velocity and perhaps it's the goal itself you are chasing. But practically speaking, 36 fps (2164 vs. 2200) makes lilttle difference with most cartridges, especially the 35 Remington and sacrificing accuracy for another 71 fps, hardly seems worth the effort. Is it just the goal you set you are trying to get, or is there another reason?