Loaddata shows 54.5 gr as a max charge with a 180 gr speer at 3.25 COL.
52.1 gr with the 180 gr amax.
54 with the Speed deep curl.

My max load in 308 with a 208 gr amax was 48.7 gr.

What kind of primers are you using ??

I watch the primers, but generally dont pay so much attention to them.
I have seen factory ammo with such flat primers you would think they were way over max.

When I get around max I start looking for brass flow and back off a bit.
IE when you see the ejection hole mark on the brass.

It looks like you are very close to max.
Maybe work up in .2-.3 gr increments.

Also one time I got a pressure spike.
IE worked up a decent RL17 load in 40-50DF weather. Primers were pretty flat and I backed off .5 gr when I saw brass flow.

Went out one afternoon about 5 months later and it must have been 100DF in August.
Got brass flow and an extra 50 fps.