I use Federal Automatch, Federal bulk, CCI Minimags, and CCI SV in my Kadet Kit. All work well. I shoot my Kadet on both my 75B, and PCR. It works great on both, and I just use the 75B's slide stop when I am shooting that, and the PCR slidestop when shooting the PCR. Both allow the last shot bolt hold open to engage properly. You will love the Kadet.