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

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

[LegendHasIt]

Thanks to a friend of mine for alerting me to an issue concerning Safety Harbor Firearms and other manufacturers of .50 cal uppers. These manufacturers received a letter from the ATF. The letter claims that bolt action .50 cal AR uppers can possibly be considered firearms. I reached out to Walter Keller of Safety Harbor Firearms and he agreed to share the letter with TFB.

(Snip)

Then they segue into bolt action rifles. If you think of a traditional bolt action rifle, the serialized portion of the gun is the barreled action. So now the ATF is saying a bolt action upper assembly should be classified as such regardless that it sits on a serialized AR lower.

(More at link, including the ATF letters)

[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,,,,,,,