sinew

[Si]

After all my bow-making adventures, I still haven't done a sinew backing. I know deer, elk, and moose is best but is regular cattle sinew all that bad because I have some?

[Pat B]

Cow sinew will work well also but it has a lot more grease in it that has to be removed and I think it is harder to shread into smaller threads.

[mwirwicki]

I've been using cow sinew, lately.  Its been working very well for me.  My most favorite for silkiness is Buffalo but don't have a source for that anymore.  Whitetail is my next favorite behind buffalo.