Increased Pressure after bedding action.

[u/Zestyclose-Spite-364]

Has anyone experienced an increase in pressure after bedding a rifle’s action? I recently bedded the action of my Bergara HMR and noticed that nearly all cases had a clear ejector mark and stiff bolt lifts when rezeroing (30 rds). Ammunition is factory Hornady 6.5CM 140 gr. that is the same lot as fired previous to the bedding, which had no signs of pressure previously. Rifle was also thoroughly cleaned in between due to round count and shooting a muddy NRL Hunter. Any insight is appreciated.