Short barrel 6.5 Grendel performance

[Tan man]

I'm going to be handgun hunting big bodied Mule deer & hogs with a 14" 6.5 Grendel barrel on my contender. I know the 120gr Nosler BT will work fine on deer out to 300 yrds (I've seen a big Mulie dropped in its tracks from a 6.5 TCU in a contender at 267 yrds). Has anyone used the heavier bullets on bigger game in their 14.5" AR carbines? Specifically I'm looking for how the 130 Swift Sc, 120gr Barnes, 129gr Hornady loads (as loaded by Alexander Arms) perform at the lower velocities obtained from the stubby AR's. My 6.5 contender will duplicate the velocity from these short barreled AR's. Also, what about max effective range with the shorter barrels using the heavier bullets?