In general, I'm not a Taurus fan. When the PT1911 came out I picked up one of the first available in my area. I figured for $460 out the door I'd give it a shot. Turns out it ran like a champ and was reasonably accurate. I didn't shot it a lot, maybe 800 rds, and into the safe it went to stay for 6yrs. A shooting buddy had a PT1911 in 9mm, and wanted to trade for the .45 for CDP division IDPA. I have multiple 1911s in .45, so why not? Turns out the 9mm Taurus runs just like the .45, reliable and reasonably accurate. I had a couple thousand 115gn bullets that I had no other use for, so I loaded them up as plinkers. I found those bullets would tumble unless I drove them up to around 1100fps. I don't normally load 115s, my standard is the 124/125 jacketed or plated. Which fly really well at around 1050 fps. If the OP is using 115s, I would suggest trying something in the 125gn range and see if that cures his bullet tumbling problem. Not sure what the twist rate is in the Taurus, but the one I have doesn't like slow 115s. Two things cause more malfunctions than anything else in the 1911 platform, in my experience: Bad magazines, and improper extractor tension. Those are the areas I'd look at first. Good luck!
str1