Why do this to a perfectly good sear????

[Jim Akins]

The hole might have been an attempt to replace a broken sear spring, no ideas about the grinding.

Jim A.

[Autumn Daze]

Francis from my experience I don,t think the hardness is anywhere near that high. A sear being that hard would fracture.

[TARNATION !!!]

Originally Posted by Jim Akins

The hole might have been an attempt to replace a broken sear spring, no ideas about the grinding.

Jim A.

Jim, I think you may win the prize. It also had a real jerry-rigged home built spring. When I dismantled, the end of the spring was not stuck in the hole but maybe it had been at some time. I only discovered the hole when finally getting all the rust off. Here's that spring. The wood screw was driven across the stock head as a poor man's stock pin. I guess it worked (the head is cracked inside). The other spring was normal. Still wondering why the sear was filed/ground.

Jack-- still waiting to see what your wishes are re: 12 Trojan parts-- Dave may be right about the Rockwell range- hardness depends on the analysis of the steel, I would guess the hammer notch to be slightly harder than the tongue of the sear that fits it- maybe not.