Deleted due to repetition. But thanks for the clarity. Now we all know what it is. And I'm not so sure that isn't a very bad piece of sapwood walnut.

RA, it is a good thing to have some knowledge about the various walnuts used for gunstocks. Suggest you begin a little personal education effort, it will serve you well in the future.
JR

Be strong, be of good courage.
God bless America, long live the Republic.