If you install the pillars first, using them to ensure that your barreled action is at a perfect half-depth and centered in the barrel channel, bedding the action in a second operation is far easier. With the pillars installed, you can torque the barreled action down using the guard screws once you've applied the epoxy.

I'm a big fan of aerosol mold release spray for a release agent.

Last edited by Woodhits; 11/24/16. Reason: Grammar