Out of round mortise's

[Derek Cohen]

I am late to this thread.

We are woodworkers. We work with wood, and not epoxy, which may flex, crack, etc and not hold up.

Drill out the unround mortice with a forstner but, and then glue in a filler piece. You may need to turn this to size. Now drill the correct size mortice.

Regards from Perth

Derek

[Bob Vaughan]

If the holes are really sloppy loose then consider 3M 5200 adhesive.  Its sort of a caulk so the joint needs to be pretty loose to start with so the adhesive can fill out.  Work with gloves.  Takes several days to cure properly.