A few weeks ago I bought a Savage 10 FCP McMillian. Over the last couple of days I have been reading over the owners manual learning how to do simple basic maintenance, ie removing the receiver from the stock, adjusting the accutrigger. What I am having trouble with is disassembling the bolt. I have watched a few videos on you tube, all seem to be fairly simple straight forward instructions, the first being to remove the Allen screw ( or flat tip in the older models). My problem is that no matter how hard I turn on the Allen screw it will not come loose. I would guess that some type of lock tight is used at the factory. I have sprayed the screw with some penetrating oil and am currently letting it soak in over night and see if that loosens it. Has anyone else had this problem and have a solution to it? Thanks in advance for the help.

Place bolt on floor with Allen wrench in, with shoes on apply pressure to Allen wrench with foot. They are over torqued from the factory

I decided to leave my Savage bolt alone after resetting it's action required a fair amount of effort

Sounds silly but it works.  Mine was extremely tight as well.

Here you go:
https://www.savageshooters.com/content.php?266-How-To-Remove-A-Stuck-BAS-and-Disassemble-Bolt

check out these too:
https://www.savageshooters.com/content.php?279-How-to-Ejector-Install-and-Removal
https://www.savageshooters.com/content.php?278-How-to-Extractor-Removal-and-Install
https://www.savageshooters.com/content.php?140-Extractor-Detent-Ball-Upgrade

And this one saved my savage from being beatten off a rock :-) due to light firing pin strikes and a bunch of FTFs:
https://www.savageshooters.com/content.php?143-Firing-Pin-Protrusion-Data

I hope these all apply to your rifle, but if not they might help anyway.   Either way,  www.savageshooters.com is a helpful site but not as helpful as www.AR15.com  :-)