I use a Promaster tripod with an Outdoorsmans head and shooting rest. Works for my optics or gun so I have to pack less stuff. For shots I have to take quicker I use my pack either prone or sitting. It has a frame so it's rigid enough for sitting behind.
The Primos Rapid Pivot bipods have served me well too. I still pack one sometimes if I'm packing a rifle I put the attachment on. I use them predator hunting almost all the time. My heavier flatter country rifles have attachments for them, my mountain gun doesn't.