Looks pretty decent. Custom chambers require custom sizing. That is the nature of t the beats. Even an in-spec bolt face depth will change things by as much as 0.005 as will the lug height/barrel extension in the back. Tolerances stack and we just go with the flow on them.
The best firearm for self defense? Any loaded one will do.
100% function on all 10 shots. Most of the fired brass had small dents on the lip edge, these came out on 1st pass of FL sizer die. About a third of the heads had ejector pin scrapes, will need to polish that pin. Primers looked great, like they want more powder !! Will step up the VMAX 75 gr load next and then look for accuracy.
The dent on the lip can be cured with something relatively soft stuck to your brass deflector. We had a discussion about it a while back in a different thread and the two things that I thought were the simplest were a self-stick felt furniture pad and the loop part of self-stick velcro, either one cut to fit the brass deflector. Should cure that dent of you care about it.
Sounds like it is otherwise up and off to a good start!
Velcro worked fine.. following also posted on PM..
So got a break today and enough time for a range trip to try some 87 gr VMAX in my new BHW 6x6.8. Used 8208 XBR, 2.265" COL, CCI BR-4, HDY brass: 28.2 => 2940 fps ave, 7.8 sd 28.4 => 2954 fps ave, 14.0 sd 28.6 => 2962 fps ave, 28.6 sd 28.8 => 2974 fps ave, 6.7 sd, next best group (0.63") 29.0 => 2981 fps ave, 6.7 sd, best group (0.42"), and 1717 ft-lbs @ muzzle primers still looked good, minor flattening, no craters, and still 100% AR function.