Tshoes, my 17 pound AR15 monstrosity just got it's feelings hurt by your comments!
Yeah, it's a heavy turd to wheel around through the bush but it's certainly a pleasure to shoot. I do think I gain a bit of velocity from the 24 inch barrel as opposed to using a 20 inch barrel, most likely because I handload for it and I can taylor a load to burn for the length of the barrel. Gains with the 223Rem are likely marginal for each additional inch or two of barrel but I'll takes whatevers I can gets.
It's a riot getting into a rested prone position while on 20x and taking shots without fear of the crosshairs moving off position thanks to being absolutely recoiless, I get the slightest amount of "buffer slap" that causes the crosshairs to bounce off target by about 1/4 inch at 100 yards but recovery is very quick.
It's a beast, sometimes that's a good thing and sometimes that's a bad thing.
Well, gotta go comfort the lightning rod. Let it know that somebody still loves it.
slab jockey, the Bushmaster AR15s(even Vmatches) come from the factory with chrome lined barrels with a phosphated finish on the exterior. If this barrel isn't an Hbar profile, isn't phosphated, and you don't think it's got a chrome lined bore then it's not a factory Bushmaster barrel and likely not a Bushmaster factory complete rifle, don't want to use the "parts gun" word but I'd very carefully check the rifle over.
777 does seem quite a bit high, especially if it's a used and factory original Bushmaster.