I have a D series 738 with an estimated 300 rounds of mixed Fiocchi brass and WPA steel. I also have lightly polished the feed ramp. I had an occasional FTF with the WPA; no big deal. I went to the range yesterday with a clean and lubed weapon, and probably a mistake, a box of Tula .380 steel from Wally Mart. The first 25 rounds were OK. Then I got an FTE with a badly jammed cartridge to the point that I had to disassemble the gun at the range, and whack the barrel many times to finally dislodge the cartridge. I put it back together, racked it a few times. Shot it again and had more FTE's and a couple FTFires as well. I could see the striker mark on the primers. Was able to put the bullets back in and they then fired. The entire gun felt "dry" to the touch even though I had lubed it a couple of days before I shot it. Also, when racking the slide, it would not fully return -- would lodge two millimeters or so before full return with a lodged round. When I got back from the range, I tried racking with a Tipton snap cap, and again some of the time the slide would not fully return and the snap cap was lodged at an angle. I plan to clean and lube it well, and try it again with brass ammo. My question, though, is -- was it the Tulammo? Or is there something going wrong with the gun? Can someone with more experience help on this? I have had mixed results with the Tula steel in other guns. Great in an SKS and in a Hi Point carbine. Occasional failures in a Ruger SR9C. Perhaps it's OK in a loose tolerance weapon and hangs in a tight one? Thanks.