TexasCHLforum.com

BTW, I did neglect to add in my OP that this is a 9MM

Wonder if they put a 45 recoil spring assembly in it by mistake? That would explain everything.

There should be a mark or color somewhere on it to delineate which it is- I'd call kimber before wasting any ammo to see how to tell which it is.

I've had a couple Kimbers and mine all ran. Maybe I was lucky but every 1911 I have ever owned ran just fine without break in. My own opinion is that a gun will run or it won't. A true break in period will only smooth things out, not replace proper fitting. I could see and understand a ftrb on a sharp extractor hook or an early fail to eject on a tight gun with new, heavy springs and weak ammo... but asking someone to run a case of premium SD ammo though a new gun to see if their lack of fitting will "work itself out" is not cool. Heck that's half the cost of the gun or more! Are there exceptions to every rule? Yep, but they are exceptions.

I've never subscribed to the limp wrist theory personally. I've seen a number of videos like this showing a gun held by the thumb and trigger finger only and shot through a full mag w/o issues. Ironically the 1911's go full mags w/o stoppage and the glock in this video fails every shot. Maybe it's the steel frame that provides enough heft to run the gun. ??

The springs in the ultra will be much stiffer than the M&P FS since it's a compact gun, so that's not a good omparison. I should have asked if you feel it catch as it unlocks at the beginning of slide movement. (first 1/4") When the slide begins to move back you'll see the barrel hood drop a little and then the chamber starts to become exposed... at the point the barrel drops, you'll feel an exaggerated tension [very briefly] as if it had an even stronger spring and then it will move as normal.

Hard to put thought into words sometimes!

ETA: manually cock the hammer before manipulating the slide as it will add even more resistance to the process... you just want to isolate the first 1/2" of movement to see if you feel it catch while unlocking. Remove the mag too, if it's in, as it will also drag.

Man, I'm disappointed for him!

most never actually moved the slide.

How difficult is it to manually cycle the slide? It sounds like the barrel isn't unlocking properly. If that's the case, it's not a DIY fix.

Good luck!