Cleaning and chasing scope mount screw threads

[MS50]

I removed the scope and rail from a Mod12 to install a new barrel, stripping the heads of the screws in the process. I have spares. Blue loctite was used. The threads are pretty packed with the dried yellow/brown loctite. I want to chase the threads with a 6-24 tap, but getting it started didn't go well. I tried bore cleaner and alcohol to hopefully loosen the dried loctite, with little success. I have used a tap before, but the threads weren't nearly as caked as these. What can I do to soften the dried loctie? I know that some use no thread locker on their mount screws, but I'd like to use it. Has anyone used purple loctite on their mount threads with success? What about just using an anti-seize compound? Thanks.

[NF1E]

A little heat applied should soften the loctite enough to remove it with a Qtip. Were you going to use a thread chaser, or a tap?

[MS50]

I have a tap. After a search, I see the difference between the tap and chaser. Looks like using a chaser runs a lower risk of damaging the threads. I'm in no rush to complete this task, so I'll get the appropriate tool to do the job. I'll also continue to work on removing as much dried loctite as I can. Thanks for the feedback.

[MS50]

Correction - I have a 6-48 tap, not 6-24.

[NF1E]

Yep, a chaser will be a step toward saving a Bubba and have to go to larger threaded screws. Learned the hard way myself. Whatta Hobby!

[Blue Avenger]

not as good as a proper tool, but you can cut a slot in the tip of a screw and clean threads