#1 Walls and all hard cover is impenetrable so it would be a reshoot 9.1.5.2
#2 Is not a legal stage you cant go directly from strong hand to weak hand without freestyle between 1.1.5.5
ok here's my wild guess, replace the firing pin spring , pin bouncing as slide picks up round and catching top of brass causing round to dive into feed ramp or mag
sounds crazy but give it a try
For 140mm mags you should be using 11 coil springs the 13's are for 170mm you have a lot of pressure pushing the round up against the slide
that's why the rounds are moving forward
Try turning your over travel screw in alittle ,trigger is pushing the disconnect up when you have it pressed making it ride the disconnect rail on the slide slowing it down
I would say that's it is probably crimped primer pockets ,Ive went to cleaning all primer pockets and putting a slight
chamfer on them most pocket cleaning tools will do this , this has eliminated my priming issues
Randy
Well just had this happen last week too. Had a primer fall out in the mag the round chambered I pulled the trigger of coarse no bang so when tried to rack
the slide firing pin was stuck in the primer flash hole result bent pin. I straightened mine didn't have a spare and wanted to shoot used brass hammer and steel plate polished it was good to go
I'am ordering a new one but will get me buy till then