rifle carry with Sitka Bivy 30

[jeffpg]

For many years now I have used the Eberlestock backpacks for my mountain hunting, mainly due to their gun carrying capabilities. I use treking poles a lot and even when I don't I prefer to keep my hands free. I have a Sitka 30 Bivy that I like and that I want to start hunting with but I'm not exactly sure how I will attach my rifle to it. The 45 Bivy has a gun carry system but it may be more pack than I need.

How are you guys packing your rifle with the Sitka 30 Bivy? I have a couple of ideas, but would like to hear your methods.

Thanks,
Jeff