We made it out to Ultimate Defense (http://www.udrange.com) on 6/11/2013 and shot both the P238 we picked up on 6/4/2013 and my AR pistol.
First magazine (TAC powder 55 gr FMJ hand loads) worked great four round rapid fire strings all stayed on paper and the majority were on target at 20m - Holographic sights feel like cheating! - but 15 rounds into the American Eagle 55gr FMJ the bolt recoiled behind the bolt stop and stayed there. I removed the magazine (still had 15 rounds in it) and since the bolt hadn't gone back forward yet there was no round in the chamber.
I tried to lever the bolt free by yanking really hard on the charging handle to no avail. Thankfully, the armorer at the range was able to free the buffer whose roll pin had worked loose just enough to hang up on the recoil spring. Since the bumper on the buffer was VERY brittle and rather cut up I ended the day and ordered a new buffer from the Equipment Exchange on ar15.com. I got the replacement buffer on 6/14 and my pistol is back in serviceable condition.
Now to try out the 55gr soft points I have loaded over 24gr of IMR 4064 powder I got at the Machinist Hall gun show last weekend...