that is of course unless you are referring using each as a projectile by themselves.
Yup, that says it all right there, otherwise the best short range BR guys and the long range BR guys would be using them, I'm sure!It depends on the accuracy level of your rifle.
There is no doubt in my mind smaller groups can be obtained off good solid sandbags when the rifle is capable of extreme accuracy.
Of course this didn't happen just by mounting a bipod it does take some work and a bit of skill to master.
Do you mean bipods need specific techniques that are different than sandbags?
(It's a tilting harris and the stock is a H.S. from a 700P)
I've been using a Remple bipod for a couple of years and a Harris for many more before that. They are just as 'accurate' as a front rest. It's more about what the shooter is comfortable with.