Help Registering SCAR17S - caliber

[Epsilon]

Hi Folks,

I was looking to register my SCAR 17S, and couldnt find the correct caliber (7.62x51).

The upper is engraved as 7.62x51 as well. Would I be able to register it as a 308?

Thanks in advance!

[Jedediah Munroe]

It is listed, lumped together with other 7.62's

"Caliber
7.62x39 Soviet, 7.62x51 NATO, 7.62x54R Rus. Moisin-Nagant, 7.62x35"