I've learned a few things both here and from shooting lately about accuracy and barrel weight. In the past, I've owned an HBAR Dissy AR, and I currently own a super light Remington Model 7 (.243) and my new build, a pencil-barrel CAR-15.
Observations:
My pencil barreled bolt gun shoots under 1" with a HS Precision stock (added, admittedly) and handloads, and is a joy to carry. Also, admittedly, the barrel rarely gets too hot to handle.
My AR's both shoot/shot the same (*in the first few shots) with completely different barrel weights. I sold the dissipator because it was too front heavy, and my newest 16" is by no means meant for precision, just short-range problem solving if needed (and blasting!).
If your use is for your gun to be a blaster rifle and an occasional 300yd coyote-thumper, I'd
humbly recommend you consider not only a regular HBAR profile, but a $25 upgrade to the aluminum FF forend. I'd also recommend a 20" upper with a flattop and a detatchable CH.
Shooting at 300yds isn't impossible with a scoped 16", but the 20" is better built for it. I'd stay away from the 24" length and 1" barrel contour, again, since you're not doing only small targets (it doesn't seem)--those are really "purpose" built guns.
Bottom line, for a shot here and a shot there, almost all barrels with good ammo can keep up with each other. When you start shooting fast, though,... that's where stiffness and weight (for quicker follow-ups) will matter. Skip the chrome lining (which will buy you some accuracy) and put the money into the FF tube. Overall, you'll have a well-balanced gun that's still fun to shoot!!!