heavy gun?

[BlackRidge]

Rugers are the M1 Abrams of rifles. If it ever fails.. (doubtful) then, with it, you can beat the livin tar out of what's trying to kill you. 

-Steve

 

+1, Its a warhammer 

The only thing I could think of would be a bull barrel longer than 26". Not sure what the m77's come with, but barrels can make a big difference