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I have a small hobby lathe that I use to cut my brass down with....it has a three jaw chuck with aluminum jaws that I cut enough taper and a back-stop in to fit the .223 case....I ground a parting tool that comes in perpendicular to the shoulder just shy of the neck, it cuts clean enough that I haven't had to de-burr any cases yet....the rough cut cases are cut about .010 shorter than desired then ran through the die (I'm using a Hornady expanding button) you get the .010 back in length and end up at 1.540"...
To date they have digested 110 V-Max, 110 Sierra (hollow point varmint), 110 Hornady PSP, 125 TNT, 125 Rem. PSP out of DPMS mags with Mag-Pul followers with no stoppages....I have not tried the Beta or P mags..I do have a couple of the HK mags on the way out of curiousity that I'm going to hopefully try this weekend....
The 16" carbine cycles very positive, you actually get a little tingle in your shoulder after twenty or so rounds.....the 20" with rifle length gas system cycles a little more slugish, almost delayed to the point of short-stroking, but I'm going to tune on that a little... If I had it to to do over, I think I would try a 20" barrel with a carbine length gas system...
kurtz
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