Who ever done this rifle, I like his philosophy for lighting. Between the metal machined off around the receiver, The milling the bolt body. That bolt handle has the shape of the factory handle, but has been cut down and removed all checkering and lost a few grains of weight. Looks like the bolt handle shaft has lost some mass near the bolt knob.
I want a light bolt handle on light rifles, If the bolt is not in exact battery, In the heat of the hunt, If the bolt torques to line up on the firing pin falling, A light rifle may move off the point of aim, With a large heavy bolt handle.
The barrel looks a little heavier and with that front site may make it a little muzzle heavy and a more steady in a quick off hand shot.
Your load sounds good for that short barrel. IMR 4350 and 180 gr. bullets in my 24" barreled 300 WSM load at a little over 3000 fps.
It will save you a lot of Pound Miles on a long walking Elk hunt too.
You may have you a keeper in that rifle.