Results of TSX-FB Loading & A New Question?

[Bluegunner]

I just finished working up a load for my .22-250. 35.0 grains Varget seems to be producing a 4 shot grouping at 50 yds. that I can cover easily (with room to spare) with a dime. 34.5 and 35.5 spreads them out again. Going to load up two more groups of 35.0 grains to see if I have consistance at fifty yards. Will also try the load at 100 yards.
Barnes recommended using the imformation for their 53-grain XFB bullet as they have no published information for the TSX-FB. For Varget the Charge Weight range is shown as 31.5-35.5 with 35.5 being Max. The undocumated believe is that the design of the TSX-FB would allow for higher grain loads as the pressure would build slower.
I have loaded and shot 36.0 & 36.5 grains with absolutely no visible sign that the cartriage is being stressed. I did not experience excess recoil, excess noise, and the bolt opens just as easily as with the lighter loads. As I moved from 35.0 to 36.5 the group is tighting up again.

My question to you, ladies and gentlemen is, does it make sense to try additional increases in the hope that the groups continue to tighten? I don't think I approaching the max load yet, but I'm not an expert. I still have room in the case for a grain or two before the powder compresses. If the group continues to tighter, would the higher velocity be worth it? Would appreciate you input!