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T. O'Heir · March 20, 2021, 12:53 PM

Why do you need to add 3/4"? Mostly just curious.
"...firing pins from bar stock..." Has to be the right steel. Mild steel won't do. The steel has to be tough vs really hard. It gets whacked a lot.
I suspect you'll find any solder is too soft. And weld is too brittle. I'm wondering if welding a wee, tiny, small bit of steel on and grinding it to finished size would do it. You'd still have small size working issues.
dahermit's "red heat" will take any remaining temper/hardening out of the steel too.

March 20, 2021, 12:53 PM	#10
T. O'Heir Senior Member Join Date: February 13, 2002 Location: Canada Posts: 12,453	Why do you need to add 3/4"? Mostly just curious. "...firing pins from bar stock..." Has to be the right steel. Mild steel won't do. The steel has to be tough vs really hard. It gets whacked a lot. I suspect you'll find any solder is too soft. And weld is too brittle. I'm wondering if welding a wee, tiny, small bit of steel on and grinding it to finished size would do it. You'd still have small size working issues. dahermit's "red heat" will take any remaining temper/hardening out of the steel too. __________________ Spelling and grammar count!