Citizens Defense Research: The Armed Parent/Guardian class starts off with a little ballistics demo, and at the Ohio class I brought along my Glock 35 and some FMJ ammo so there would be a .40 on hand for the demo.
(This is a reflection of the decline in popularity of the .40, at least among the demographic of people who attend firearms training classes above and beyond the minimum state-required CCW permit kind. Out of ten or fifteen students, pretty much everybody will be shooting nines of some kind, with the possible exception of a lone 1911 iconoclast shooting .45ACP. I can't remember the last class I saw a .40 on the line. Well, other than Tom Givens unholstering his 35 for a demo.)
The .40 FMJ round, some Federal RTP 165gr, performed as expected. Like FMJ pistol bullets from service-caliber autos are wont to do, it zipped all the way through one gel block and into the next, demonstrating in visual fashion that people often are concealment, not cover.
Anyhow, as a result of this, I've been driving around since September with a box of 49 rounds of .40 S&W ball ammo in the trunk of the Zed Drei. So on Sunday afternoon's range trip with Bobbi, I dragged the Glock 35 Gen4 along with the LCP II: The Ruger for work and the Glock just for fun.
Lucky Gunner's Armscor .380ACP 95gr FMJ ammo without a hitch, and the Glock also experienced no malfunctions of any kind.
For the LCP II, this makes 526 rounds fired since the gun was last cleaned or lubricated with three failures to return to battery (#128, #158, #245). 1,474 rounds to go.