I am currently in a slow build up of a .223 wssm on a super short model 70 CRPF action. I'm hoping to pick some brains for ideas and advice. There are a couple of things I've picked up along the way. First issue is the brass. Winchester really went the cheap way out when producing brass for this cartridge and in turn I believe this has been the major cause of annoyance with this cartridge. The neck walls measure around 21 thousandths which I feel is way too thick. I haven't ordered a reamer for it yet and I plan on building up a few dummy rounds and having the reamer built off that. Does anyone have any ideas on the best way to bring all of the necks down to say 16 thousandths or so? What type of neck turning sytsem should work the best etc...? Would you employ a combination of neck turning and neck reaming? I feel that the brass is the weak link in this equation and if I get it to better dimensions I can enjoy the rest of the rifle. Second, I have a Kreiger 8" twist barrel for it that I can finish as long as 30". Shooting heavier bullets, around 80gr, can I use the entire length? I really think I can with slower powders and the heavy bullets while in turn keeping the initial chamber pressures somewhat lower than if I were trying to push a 40gr vmax to the limit. I ordered the barrel with an extra long shank to plan for set back later in life so I'll probably go ahead and finish it at 30" anyway but I figured I'd see what the greater minds on LRH thought. This should be an interesting project and I feel that it will at the least be definitely unique when it's finished. Here are the planned specs for now. Blueprinted and tuned action. 30" 1:8" twist bbl. Russo A-5 Laminate stock. Farrel 20MOA base. SS 10 power scope.