Well the CM 4140 barrel isn’t going to tolerate the same firing schedule as as a CMV 4150 (mil. spec) barrel. The nitride finish is a step in the right direction, but will probably not provide the same long term durability under a harsh firing schedule as hard chrome lining. So the barrel is a step down from mil. spec in the durability department, but if you don’t plan on lots of rapid fire this may not be a big issue. Nitride doesn’t alter the internal dimensions or surface finish of the barrel like chrome lining does, so you may see a slight precision advantage. Although in defense of hard chrome lined barrels, anymore they’re so good that I see no reason not to go with one for anything other than a target gun. Criterion has been making match grade chrome lined barrels for years, and recently Daniel Defense stopped offering their line of nitrided S2W barrels, opting to chrome line all of them. According to DD the process is so refined now that the chrome lined barrels they make shoot as well as non chrome lined barrels they offered. Of course those are more expensive barrels or rifles than the Ruger, so you have to consider value for the money versus your intended use.
My other nit picky complaint is the bolt should be Carpenter 158 instead of 9310 but both alloys can result in a perfectly serviceable bolt, with essentially equal service life. In order to really step up the bolt to better than mil. spec we’re talking about using AerMet 100 and changing some geometry like the LMT enhanced bolt or the Knight’s Armament E3 bolt, both of which are $$$.
Otherwise if you like it, but it and enjoy it for what it is. Remember to lubricate generously!
