Just got the SG Buyers club catalog and saw Brass Case Wolf.
Current production, NATO headstamped,
military spec in 200-rd. battle packs!
Brass-cased, Boxer-primed, reloadable.
55-grain FMJ bullet.
Muzzle Velocity: 3,250 F.P.S.
Muzzle Energy: 1,289 ft.-lbs.
The funny thing is that they use XM193 in the description.
Not to mention that they are calling a 55gr bullet NATO spec.
There has already been discussed extensively in another thread!