Finally got to shoot my encore yesturday. I have the rubber grips and after my shooting session I noticed the grip was softer and moved more than before. I tighted the bolt and it is still loose. Anybody know if it is supposed to be that way? Second the grip is a little to big for my hand. Is the Pacvhmyar grip slimmer or dose anybody make a slimmer grip?

I never noticed mine getting "loose" as long as the bolt was tight (even with the 450 Marlin barrel), so I suspect there is a problem somewhere.
The Pachmyer fit my hand a bit better. Little shorter reach & better shape.