I've had some issues with my 745 also. When I first got it, one magazine would feed anything I put in it, the other didn't feed worth a hoot. I sent the bad mag back to Taurus and they sent me a new one. That one now feeds great also. After about 300 rounds though, I'm having a problem with my slide catch. It actually slips out of the notch in the slide. In other words, looking at the rear of the gun, the slide catch moves over far enough to the left to come out of the notch. I can't figure out what is causing it and I not having much luck getting anyone to respond to my queries here on the forum. I guess no one else has the problem. The only thing I can see that looks strange is the slide catch spring. It looks bent to me. When I remove the slide and look down at it, it appears to be bent towards the inside of the frame and I think it should be straight. What does yours look like?
I really like this little gun. It feeds ball ammo great and is surprisingly accurate for a sub-compact pistol. I need to get it fixed, but I hate spending $50 bucks to send it back to Taurus overnight.