Kyode - I've been using a Hoppes tripod front rest with a suede leather rear bag half filled with lead shot and half with old kidney beans! Gives a nice balance of steadiness and portability. Use it for everything ... rifles and T/C's ... and it has worked fine for me.
I have a question for you, though. I just threw away 6 pairs of OLD jeans that had been accumulating in my closet and I cut all the legs off at the knees before they went in the trash. But I don't know what to fill them with. The obvious choice is sand, but I'd like to try some with "light weight filler". What has worked for you?
Thanks ... Crayfish