I kept one bone stock and took the other one apart, polished the ever loving crap out of it...... I mean everything!!!! Feed ramp, trigger parts (yes all of them), slide rails and the slide. I even rounded the corners of the ejection port a little bit "rounder" and polished that as well. I polished everything that moves or has parts move on it in this 213..... It feeds everything I have put down it. Round ball,CMJ round nose, lead round nose, flat nose & hollow points. from 115 gr to 147 gr.
The one I kept bone stock..... feed everything?..... not so much. About all it feeds somewhat reliably is the Round ball & CMJ round nose.... even then its still spotty, Like 1 in 5 will FTL or FTE...
Polish the crap out of it.... it will work better!
Cheers!