ATF Is Classifying .50 Cal Bolt Action AR Uppers As Firearm

The Firearm Blog ^ | 7-30-2018 | " Nicholas C"

[nobamanomore]

Mine comes up like this

Recoil and velocity calculator
Load One
Bullet weight in grains
400
Velocity in fps
2400
Powder charge in grains
100
Weight of firearm in lbs
9
Recoil Impulse in (lbs sec)
6.03
Velocity of recoiling firearm (fps)
21.59
Free recoil energy in (ft/lbs)
65.13

If you load them to 2550, which is not unusual, it’s a good bit more. I usually load a 370 NF with 104 gr H4831 which goes 2530 fps.

[piroque]

I think this was one of the reasons Barrett started making their .416 cal.,a necked down 50-BMG cal., rifles,,,,,,,