Thread: Seating depth/ Bearing surface

It's more the point. You need some length there. I wouldn't worry about yours. (It's a general rule of thumb)
If it came loose. You would loose concentricity before it came out I would imagine.
Depends how rough you are with your rounds. Running them jammed wouldn't help. The semi if you were allowed one would be a bit harder than the bolt on rounds.

Guys that run jammed sometimes go to eject a live round and the projectile comes out as it's jammed into the rifling spilling powder into the action and maybe trigger ruining your day, until you go home and clean it all out, other than that it's not that big of a deal.

Keep it in mind when loading. If it becomes a problem you could always increase neck pressure or crimp them. But I wouldn't worry too much.
Here is some homework for you.... Load a dummy round no primer or powder.... Now try pull the projectile, see what force it takes then make up your mind if it is a problem.