GeneT
Active member
Yes, from everything I have found the M3 barrel is used in the aircraft BMG machine guns. It is shorter and lighter to mount in the wings and fuselage.
The link provided by Asa Yam was very interesting. The Sabre Defense barrels are alleged to be the most accurate of all the military spec barrels produced by any company. they are supposed to produce 1 moa for every 100 yds so that means at 500 yds I should get about 5" to 6" groups. If so I will be able to kill Coyotes at 500 yds which is what my plan is.
Since my rifle will weigh close to 40 lb and will have a military type muzzle brake and at least 2 mercury recoil arrestors on it and a good recoil arresting butt pad the recoil should be manageable. At least I hope so.
A 40# rifle with a good brake (K&P or Serbu) will be fairly mild.
As to noise, a single-shot .50 isn't noticeably different than many other calibers, unless you happen to position yourself in the blast of the brake.
GsT