Rockwell test

[bb1]

I have 3 actions. Two Winchesters and an Eddystone. I put them on the Rockwell to test the Hardness. The two winchesters tested 42 and 45 RC.
The Eddystone was a 19 RC.
What does that mean? I thought the Eddystone was supposed to be hard and brittle. I'm afraid to shoot it. It would cost the same as a new action to have this one heat treated by that outfit in Salt Lake.
Help old guys

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