Marked a line to locate the cocking pin hole.
Center drilled,
Drilled undersize
Brought the hole to 1/8" diameter.
And counterbored for the shoulder on the (as yet unmade) cocking pin.
Need to create some breech screw clearance in line with the cocking pin hole.
Started by filing a flat.
Then transferred to the Taig and ground a curve. Protected the ways with some foil to keep abrasive grit at bay. Cleaned the lathe bed thoroughly afterwards.
I'm still on the left.
A larger clearance area than the stock Crosman.
Hardened the face of the hammer. Hopefully correctly.
Polished it out again.
Skipped a step earlier and needed to reduce the OD to approximately 0.738" to achieve a sliding fit inside the gas tube. The front of the hammer laughed at the HSS lathe bit I tried first. A small carbide tipped cutter did the trick. The rear of the hammer is much softer. I was hoping for a differential hardening and it looks like it was achieved. I didn't remove all the machining marks on the body. My thought was the small grooves would hold and retain some lubrication. Blued the part with Birchwood Casey Perma Blue Paste.
Ah--almost forgot. I made the clearance area larger because the hammer was heavier than the Crosman. When finished, it was only 2 grams lighter than stock. Pretty close for winging it.
More parts to come.
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