I recently reloaded a batch of of 380, and made them to the overall length in the book. I think it was .98 inches. However, with the 90 g hornady XTP they sometimes bound in the magazine. It looks like the rounded mag was made more for round nose, and the flatter nosed hollow points hung up. Anyways, I had to seat the bullets in a little further and it solved the problem. After this happened, I looked in other books and there were some listed as a little shorter....I picked the wrong one i guess I found this can make a semi-auto into a single shot in a hurry! While i don't carry reloads for self defense, I do carry them out in the woods a lot. Might be old news or maybe something specific to this bullet. But, it shows how picky guns can be. I bet a small ding from dropping a mag could cause the same problem.