700ml question?

[jlink83]

I have browsed multiple threads between here, hanks, MML, and the smokeless facebook pages. I know that most have moved on to the safer less finicky centerfire actions and the 700mls are outdated dinosaurs. Can someone explain why/what causes the action screw to wear? Is this due to running full tilt or over pressured loads? Have the newer style breech plugs helped eliminate it? After reading a few threads when I got my 700ml back form being converted I did and will keep the slot on the bolt properly greased. Not trying to beat a dead horse if there happen to be threads discussing this I overlook please let me know. I don't envision myself running more than 10/20 shots a year/season through this rifle unless its for load development reasons.  

[dannoboone]

Action screw wear at one time was no problem. One could get replacements
from several places. Keeping your bolt slot greased should keep your
screw lasting for a lifetime, no more than you plan to shoot.