Re: bedding DIY ?
Most HS stocks have aluminum pillars so you don't really need to. But some questions.
Is your gun factory? Or has it had the whole treatment done to it? If its a factory gun, and you have pillars I personally would just shoot it. If you have a pinned recoil lug, aftermarket barrrel and a faced action, I am all for bedding it.
A couple thoughts.
Make sure your barrel is free floated. Many Remingtons touch even in HS stocks sometimes. That will be your biggest issue.
With pillars, I don't think you would see a bunch of improvement, and while a skim bed could help its probably not necessary, I would just shoot it.
I have a .308 sitting in a HS that is not bedded. Accuracy is about 3/4 MOA or a bit less. Its a factory barrel so I don't think its going to improve that much. I also have a 6mm x 284 tight neck sitting in a HS. It sports a Lilja Barrel, Jewell Trigger, faced Remy Action, Oversized Recoil lug etc. That one is bedded and shoots a ragged one hole group.
There is only so much you are going to get out factory barrel. Spending the time on load development would be worth the time, bedding not so much if you have pillars.
Once bedded you want everything back together solid. I spent the money on a torque wrench a long time ago and everything is 65lbs per inch.
Basically once you go down the rabbit hole there is LOTS of other things that start to happen.