Ok, I was wondering how light you could get, because the stock and ergonomics fit really well. I was starting to add up the cost of putting together another rifle and then started down the rabbit hole of what if's and will this or that work. I was originally playing with the idea of picking up a trg42 in 300wm, but then started to think what if I was going pick up a 338L and rebarrel it to a 300 Norma.
I'm sure that I have a disease of some kind.
I can confirm that you definitely have a disease...
Here is a photograph of the stock colors:
Substituting barrels between steel and Carbon Fiber, you achieve some weight savings:
Bartlein #13 = 4 lbs 10.5 ounces
Proof Sendero = 3 lbs 9.92 ounces
So roughly a savings of 10.58 ounces from the factories. There will be slight differences when the barrels are trimmed at the muzzle and the breech is threaded and chambered.
Scopes, rails and rings can get to be a very personal portion of the set up so I suggest looking at the scope power you might want to use then choose the best glass possible for the price you want to afford.
The Swarovski Z8i 2-16x50 P L that I've used is 23.8 ounces while the 6x range is 21.4 ounces. You might find something lighter but be aware of the quality of the glass.
Rings are available in aluminum as well as Titanium now, so an ounce could be realized as a difference in savings. Not much really.
Bipods and slings can really up your weight unless you intentionally shop for the lightest and the most sturdy as both of these will affect the carry weight and the balance of the rifle.
Enjoy the process of the selection!