Ehhh - wrong answer.
Pink Loctite is small screw adhesive.
If there is Red Loctite on the screws - they will not come out.
It will take about 450* of heat to get the Loctite to release.
The screws that holds a scope on a rifle is a larger size usually then the screws that holds the scope on. I can't remember anymore - but I think that the screw size is usually a 6 - 48 or 8 - 40 - .164 diameter.
A #6 screw has a diameter of 0.138". The second number denotes threads per inch (tpi), so a 6-48 screw is a #6 with 48 tpi. Industry standards for #6 screws are coarse (32 tpi), fine (40 tpi), and special (36 tpi). The 6-48 size is an oddball. You would need a number #31 drill bit to drill the hole and a # 25 if you wanted to clearance drill the hole for the screw. That doesn't leave a lot of meat in the hole if you break a screw off. Definitely not something that you could do with a simple hand drill.
You have to special order the tap - because no one except for a gun shop carries one.