Yes, they feed and shoot very well. If you are concerned about lead in the oem barrel, get a Wolf barrel for about $100. That works very well also. Accuracy with lead is every bit as good as jacketed. It is hard to find a pistol powder that does not give great results in my 21sf. This includes Bullseye, Universal, CFE Pistol, Autocomp, Herco, and several others. I have not found it easy to get similar excellent results in my 9mm G17.