Being relatively new to reloading, 5 yrs or so I finally decided to try and look for pressure signs in my factory Rem 700 300 WM. Only sign I ever had here was bolt lift. Primers were fine and no ejector marks. My first sign was at 76.5 was a tiny bit sticky. Took a bit of a grip to lift the bolt. Not to bad. @ 77gn it took a lot to lift the bolt so I stopped. This was brand new Norma Brass, trimmed, deburred,chamfered and set at .002 tension. Only thing I noticed on the brass at 76.5 and 77 were marks ,scrapes or brush marks if you will just above the belt. Not a lot but noticeable and weren't present on lighter loads.Should I just call 76 my limit? Tried as best I could to get a pic but the brush marks aren't showing up very well.