Well, range report time! Just got home, and good news all around. It's hot as balls here, and rather humid/muggy. Had a direct tail wind. See below for exact numbers.
In my excitement, I rushed out of the house forgetting my bag rests yet again. So I reverted to using one of the head rests out of my F150 with a hoodie on top of it. Did the job, but definitely unstable and rocky.
I bore sighted the rifle at 101 yards (confirmed with laser), and planned on initial zero/foul/cold shots with 9 left over rounds of Winchester 150gr SP. First group was a bit open around 1.75" but group two was pleasantly surprising! I'll let the pic do the talking

keep in mind I did not touch scope knobs after bore sighting.
So with that group I started to get rather excited! I shot 3, 3 round groups of the Win factory stuff, then switched to hand loads to see what this shorty likes. I don't have a chrono yet, but that's in the works, so I can't give you any info on fps.
Before I get to those rounds, the rifle shot extremely well. The action is butter smooth! Absolutely love it. The new bolt knob isn't even worth trying to compare to the old one. There's just no comparison. It points extremely well, and with the short barrel feels very balanced super maneuverable.
My hand loads are 165gr SST in Federal Brass with CCI primers, shooting with IMR 4895 with loads ranging from 39gr, to 42.5gr for development.
I began at 39gr, but that opened up big time. Shot 4 round groups with each load. Worked up to 41.5gr, which seemed to be the ticket. 41.0gr and 42.0gr were ok too, but 41.5gr was where it was at. I originally thought I had 2 pretty tight with 2 flyers as I could not see them, but upon walking down range I had two sets of 2 on top of each other as you'll see in the pic below. I was extremely happy with this load, especially considering I didn't have a proper rest. I measured center to center, and as you can see, it's pretty tight!
Overall, I'm extremely impressed with this rifle. I did nothing in way as touching the stock. Only thing I did was adjust trigger down to 3lbs. It breaks nice with only a small amount of creep and maybe a hair of over travel. Definitely can live with this for the price point.
Would I recomend the 783 heavy barrel? Absolutely. Don't hesitate to pick one of these up. You'll love it!