I have a CZ Hammer Classic, made by Huglu, for shooting steel and after making a few modifications (lightening triggers, opening up the tight pistol grip to POW) I have been happy with it. However, the hammers are poorly hardened. The left barrel stopped firing some time ago due to slight peening of the original hammer's nose, and now the right hammer has peened and only dents the primer. CZ-USA cheerfully sends replacements and I am waiting for the new one.

I am wondering if I should try to harden them. I have hardened a few screws with a propane torch, but am otherwise inexperienced. I know nothing about the steel.

Advice, please? Many thanks.