Anyone want some Turkey jerky?

I'm not sure where I went wrong. I've made turkey many times (successfully, even!) before. But, this year, I totally overcooked that sucker. It was chewy. Very, very chewy. No big deal on several counts, though.

1. I was only making it for us.
2. I got it for free (my husband's workplace gives them out every year -- if only they would come with those handy pop up timers that most other turkeys have)
3. We are going away for a few days, to visit some friends (when would we eat it all?)

I'll do better next year! This year we're going to spend the day outside playing instead.