Just a word of advice......
If your release agent (wax) contains silicone, do NOT allow it near unfinished wood, ie stocks.
Getting a proper finish on silicone contaminated wood is virtually impossible.
So... What's the procedure for using paste wax?
Do you apply a thin coat and leave it on?
Or apply a generous coat and then wipe/polish it off? How many coats?
One light coat being careful to get complete coverage. Don't let it build up in corners and don't buff.
^^^ This, just be thorough that you covered all the nooks and crannies as described, and it will seperate easily.
Another tip using paste wax release agent: Even if you think there is no way you will accidentally get epoxy on some parts of the action or barrel, a quick wipe of wax on everything is valuable insurance that costs almost nothing.