how much heat for breech plug?

[jaegerstutzen]

Have a short 1842 musket bbl. for a fun project. The tang is snapped off so I drilled a somewhat off center hole and tried an easy out with all the heat I dared. Presoak in Kroil. No avail. How far can I go? Get it red? Thanks for looking, Jaeger.

[waksupi]

I don't think I would go red. Blue is as hot as I have ever taken one. Soak it longer. Or cut off the plug, and re-breech it.

[jaegerstutzen]

Thank you Waksupi.