Any opinions on the Federal Power-Shok ammo. Looking at the 80gr. load (Muzzle Velocity: 3470 fps--Muzzle Energy: 2139 ft. lbs.) in 6mm Remington to shoot through my Ruger M77 24" heavy barrel.[/align][/align]Is the 6mm Remington ammo in various factory loads becoming harder to come by, or is it just me? Yes, I know, time to reload. [/align]