Yes but....
"Fired caps don't care if they started as #10's or #11's, they are all mangled up!"
In my observation, if I shoot elevens on any of my four Remingtons, I take a pistol which is largely immune to cap related operation problems to one in which every other shot is a bust.
As well,
"11 caps that I am using are to large and need to be pinched to stay on the nipple"
My opinion is that pinching caps is asking for trouble. Use the right size caps and if none will fit, change the nipples. It produces a far more satisfying shooting experience.
Just my observations gained from admittedly less shooting experience than most other folks on the forum.