I have a XD40 SC with maybe 300 to 400 rds through it. I noticed last week while I was qualifying for my CCW that the slide would lock back prematurely once in awhile. I was aware that this could be a thumb placement issue but couldn't rule it out at the time.
Yesterday my son and I both had the issue a few times again. I was careful with my thumb but still not 100% sure it wasn't my problem. Just a note first time I was shooting Winchester 100 rd box and second time reloads and Winchester 100 rd box.
I read the article that said sometimes the rounds were hitting the slide lock on the inside, so I stripped my gun and put boths mags in to check clearance. Both looked good, even removed a rd at a time to see if it was any different with say only 6 rds, 5 rds, and etc left in mag. At this point I decided that it must be my thumb placement and would pat better attention next range trip.
But what didn't look right is how the high or low the round would sit with mag in gun. The lower sitting one is the 10 rd mag and the higher one is my 9 rd mag. Both are what came with the 40 SC brand new. Any input?
Yesterday my son and I both had the issue a few times again. I was careful with my thumb but still not 100% sure it wasn't my problem. Just a note first time I was shooting Winchester 100 rd box and second time reloads and Winchester 100 rd box.
I read the article that said sometimes the rounds were hitting the slide lock on the inside, so I stripped my gun and put boths mags in to check clearance. Both looked good, even removed a rd at a time to see if it was any different with say only 6 rds, 5 rds, and etc left in mag. At this point I decided that it must be my thumb placement and would pat better attention next range trip.
But what didn't look right is how the high or low the round would sit with mag in gun. The lower sitting one is the 10 rd mag and the higher one is my 9 rd mag. Both are what came with the 40 SC brand new. Any input?