Originally Posted by muleman1953
I started seeing some slight pressure signs at 96gr and the gun shot great at 95.5. Even though I'm not seeing Pressure on my brass it is starting to have the last of the bolt lift hard to pop up & pull the spent case out.
It is normal when loading that hot of ammo to have the bolt bind a bit when it's opened. Hodgdon data lists 89 grains of Retumbo as a max load with a 220 grain bullet producing 61,000 psi. Plus, if the bolt face is out of square too much, that'll also cause a sticky bolt lift. And if you're just neck sizing the fired cases, that will double the chances of having a sticky bolt lift from insufficient clearance between the chambered fired case and the chamber walls.
Did you check the fired case heads of any signs of brass extruding into the bolt face cutouts? A bump on the case head where the ejector hole/slot was when it was fired indicates pressure's 75,000 to 80,000 psi.
I'd back off that powder charge to 89 grains and see what happens.