Removing old bases

Hello. I bought a Remington VTR from a hunting and fishing shop a few years ago and they put those little half bases on as part of the package. Problem is I have a direct mount NF ring and base set I want to put on there now but it looks like they may have loctitided the screws. If I look where the bases meet the rifle I can see a pink/red line. Im hoping its not red loctite as I heard it can withstand heat up to 260 degrees or so. Also looks like one of the allen key screws is almost round off :angry:

Any ideas on the best way to remove the screws

Sell the rifle, problem solved.

A small gas lighter/propane torch and directly heat the screw hard and fast for about 30 seconds then undo:)

Yea it crossed my mind gimp. Ill try the heat first. Cheers