Idaho Shooter: I shoot lots of Varmints and predators off of the hood of my VarmintMobile, and off of the roof and on occasion the tailgate.
BUT.... shooting for "groups" finds me at my ranges cement benches or out of my friends super sturdy table inside his all weather shooting shack (100 yards only) at his private range.
And when shooting for groups (i.e. load testing, sight-in verifications and checking the accuracy potential of Rifles) off of these solid "shooting tables" I use my Hart front bench rest stand and a quality rear rabbit ear sand bag.
Of course I am seeking the 1/2 MOA to 1/4 MOA results.
Don't you have easy access to a range with benches?
Hold into the wind
VarmintGuy