02-21-2012, 12:23 AM
Variable Wrote:I have a 1:7.5" twist in my 10.5" barrel. It stabilizes fine with the Hornady 160 grain bullet. I just couldn't find any load that would cycle in my upper at subsonic velocity. I'm pretty sure my problem is lack of dwell time. If I could do it over again I would wish that someone would make a 10.5" chromed bore with a pistol length gas system (instead of the carbine length on the AA Tactical upper.
My dream upper would probably be a 10.5"-12.5" chromed barrel with either a pistol length gas system or (preferably) a Noveske style switched gas block sitting over a larger gas port. If it was feasible then the switchable gas block would have a folding front site and three orifice sizes. One regular sized for conventional ammunition, one oversize to cycle subs with a can, and one "off" setting for maximum sound suppression while cycled manually. I can dream...
You dream has come true- almost. Paladin Machine will make a switchable gas block to your specs. I'm not sure about the front site though.