Hey Corey. Glad to finally meet you in person. Cool place, Dave's Guns. I've now tried the Aguila .380 90 gr. and got the same results. Fired 57 rounds with the first mag firing flawlessly. Then every mag thereafter had failure to feed on the last round.
Changed mags just to see if anything changed and got failure to extract on 3rd rd, and on another, failure to extract on 4th rd. Cleaned bore after each mag just to see, but same thing; failure to feed on last rd.
Called Larry Seecamp and he immediately said send the gun back to him along with some empty casings. I told him I would try some Silvertips and Hydra-Shoks first just to see and he agreed. So that'll be next week.