RCBS Rock Chucker or Lyman single stage are both about the same, with the Lyman generally being less expensive. I'd get either one.First of all I'm a new to this forum but been learning a lot from you guys so thanks. I'll get to the point, seen coax available at Scheels last week so I ordered it while I could, in the mean time while waiting I picked up an old rcbs junior press on cl for 50 bucks, been using lee challenger press which is pretty sloppy, I set up Jr press, used Redding body die and then lee collet die and seated with Forster die on challenger press, to my amazement I had less than .001 runout using Sinclair tool to measure. So I tried it again and again and wow making some straight bullets, 10 in a row, maybe 2 with 0015 runout, coax comes in, set it up, used same sequence and runout is all over the place, some good but most over .003, tried new Lapua brass and still not so good, challenger press would make .001 runout with new brass. So went back to old set up, readjust everything and good ammo again, I'm looking at this coax and seeing all the moving parts, shell holder ain't between the Rams and wondering how something like this can line up better than a ram going through one hole, which seems much simpler, any ideas, I'm thinking of sending it back and getting a rebel or a mec.