I took a John Farnam class this past weekend (highly recommend it) in Columbia, SC. The range "floor" was completely sand--deep loose sand. During the exercises, when reloading we had to be moving. Because of this, I usually shuffled sand all over my mags. As you can imagine, they got full of the sand.
My question: After the class, I took them apart for cleaning. When I put them back together, only one would lock the slide back empty(racking slide by hand;haven't shot since cleaning) Could I have done something wrong reassembling? We did quite a bit of tap-rack stuff. My sore left hand tells me I must have been over enthusiastic during the tap. Could I have damaged something? I have ordered new followers and spring, but was wondering what might have caused this. Is it possible I could have damaged the slide lock itself? The one mag that does lock the slide pushes it all the way into the detent in the slide.
Thanks, and sorry for the length.