I appreciate every single one of your comments, I've learned alot in this thread. I'm just now beginning to go down the rabbit hole of long range shooting
I should've also specified that I'm in SE Texas and the farthest I'll be able to shoot here will only be around 500, maybe 600 yards which is probably only mid range for most of you. A brake is the first thing I've considered, but I have a light pencil barrel that most probably won't want to thread. Also because the barrel is so light, I'm probably only able to shoot a handful of shots before it needs to cool down. I don't reload yet but I'm certainly diving head first into that rabbit hole as soon as I recover financially from this rifle (and optic) purchase. So factory ammo will be important (sorry. I should've known to put this in the original post).
My second thought was to sell the rifle and get a Bergara in 6.5 cm, and I'm still leaning that direction. But it may be difficult finding another leftie near me that wants a 300 win mag. In case that's the case, I'm considering rebarreling and rechambering because I do love the action, it already has a 20 moa base on it, a bigger bolt knob, metal bolt shroud, and I've upgraded the aluminum lug to a steel one.
If I rebarrel, according to ammo choices it looks like it's easiest to find 6.5 prc. I'd love something that recoils even less than that, but I'm sure that will be a dream compared to my current setup. Ideally I'll want the rifle to weigh roughly 9-10lbs with a heavy barrel that i can shoot a bunch without it getting whippy too quickly.