My P90 feeds ANYthing. I even tested it once by putting an empty case in the mag and seeing if it'd feed and it did! The feed ramp is integral to the barrel, but barely gets touched as the round feeds almost directly into the chamber throat unlike 1911s that have to climb up and over a two piece ramp. Feeding reliability is flawless in my P90. I feed it the old reliability tester for defensive loads, the discontinued Speer "flying ashtray" 200 grain JHP. I've never loaded that round in a 1911 that didn't cough on it. LOL Works fantastic in the P90. I only have a couple hundred of them left and am Bogartin' them. Figure I'll try the Gold Dots after they're gone, but I don't shoot 'em anymore, they're in reserve for carry. The things are accurate, too. That's what the round in that picture is loaded into the magazine. It's very short and has a HUGE hollow cavity in the nose. The Gold Dot is very similar and that's what I would use in modern ammo, I think. I like the 200 grain weight bullets, shoot to point of aim in my gun, it seems to like the weight for accuracy, though about anything shoots well in it, and it gives some decent velocity to make it open up where the 230s are slower.
I have yet to find the ammo that P90 WON'T shoot. I've fed a couple hundred aluminum cased Blazers through it with no problems. I have not, however, tried Wolf ammo. I handload so I haven't fired a factory round out of my P90 in at least a decade. At about $2.50 a box, I prefer my handloads.
