Re: Wilson Barrels gtg?
Not sure about the manufacturing process (hammer, button, single point, etc.).
I have a stainless 16" medium contour fluted on an AR and it's a hammer. It's a 1 in 8 twist, and while it seems to have taken a bit to break it in, it shoots very good groups with 60gr Vmax, 62gr M855, and 69gr BTHP. I have run it out to 600 yards and had no problem drilling LaRue (28x32) targets at range. Mine was chambered in 223 Wylde by a local smith. I would say it is averaging 1 moa with the 62gr M855, and quite a bit under that with the Vmax and 69gr BTHP's at 100 yards.
I'm going to have to replace the 18" barrel on my SPR rifle soon. The original barrel is a Krieger SPR contour in 1 in 7 twist, but considering the price of a Krieger (450+ $), I think I will go with a Wilson when I re-barrel.
Hope this helps,