Mike_Fontenot
New member
Update: Long story short, after the previous gunsmith work (which involved removing some material near the bottom of the barrel-mounted feed-ramp, to remove the discontinuity between the upper and lower feed-ramp), the problem with the jam on the last round in the mag didn't recur at the next range trip, but a new problem surfaced: I got numerous horizontal jams when slingshotting the first round out of a mag. Back to the gunsmith, and I think he has now solved all the problems: he recut the barrel-mounted feed-ramp, so that it has the same constant slope as before the previous feed-ramp work, but positioned slightly forward of its original position (which was slightly aft of the lower frame-mounted feed-ramp, which created a hang-up junction). This slightly increases the unsupported area at the bottom-rear of the chamber, but Kimbers are known for having the most chamber support of any 1911, and so it could afford to gave up a slight amount of support in return for feeding reliability. The cases I shot look OK ... no bulges in that area (even with my full-spec 10mm DoubleTap carry rounds, which is all I ever shoot). I'm cautiously optimistic, and hoping that I've finally got a reliable 10mm 1911. I love the way my Eclipse handles, but I've got to be able to quit wondering on every shot if it's going to jam or not ... may take a while with no failures to learn to trust it.