I also had overspray. Removing it also didn’t help.I’ll add one more … and it may already be very obvious since the barreled action has already been removed from the stock. Removing any paint from the lug or the bedding pillars is wise to do too when it’s all apart.
You can see my regular HMR came over sprayed on all surfaces.
When I removed the overspray nothing changed accuracy wise but I’ve heard others have had luck with it.
Please do keep us in the loop how it turns out !