Ruger sears cut fairly well with a stone, not so soft that you could just whisk right through them with no work at all, nor are they glass hard. I have had Ruger sears dub off on the corners after a lot of use, but it didn't interfere with safe operation. Ruger investment cast parts are relatively hard as cast (about 35 Rc), I imagine they could be induction hardened. Stainless will not show color from heat treatment after polishing.
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Ruger 77 Mk II trigger
- Thread starter warbirdlover
- Start date
I used a polishing wheel on a dremel to polish the mating surfaces followed by hard leather. Surfaces were mirror polished and worked like a charm. I have a large assortment of various springs that I simply worked down until the pull was around 3 lbs. I have another one to do now. As said before very easy and you can end up with a very nice trigger.
warbirdlover
New member
I imagine they could be induction hardened.
Possible if there was enough carbon in the material. But not usually done as it would require specialized equipment and is less cost effective then a furnace heat treatment such as nitriding where a large load can be run at once versus one at a time.
The trigger could be made from sintered materials but Ruger is known for their state-of-the-art investment casting techniques. Furnace heat treatments are more cost effective on both.