Yes, my bolt is 6.75" long. My chamber at the receiver, then with the bolt closed http://i462.photobucket.com/albums/qq350/mister-freeze/4127DDAE-37E8-4EEA-ACBD-1543E3E24DCD_zpsoyyfgtxu.jpg http://i462.photobucket.com/albums/qq350/mister-freeze/2598BBFF-B06F-480C-A56E-678B9748AE7B_zpsfsjkkmpa.jpg
My barrel came out when trying to remove the muzzle device. On inquiry, I was assured there was no headspacing necessary. I torqued it down and it runs fine. It protrudes thru the upper as much as 1/16".
It is a shameful commentary that 9 people lose their lives and the discussion turns to the Confederate flag. The cowardly knee-jerk reaction by so many to distance themselves from something that has so little to do with a psychotic act is typical, expected, and counterproductive. Let's not focus on ...
I'd be interested in the balistic characteristics being that Zinc and Zinc alloys are harder than lead. A thought I had was typical 55gr .224 jackets filled with Zinc INSTEAD of lead.