Re: shooting bags
I use the Caldwell dead shot front rest. I've had several bags built for me of different sizes and have filled them with everything from sand to pvc pellets. In the end I go back to the dead shot front rest filled with untreated corn cob media (its the lightest filler I have used that gives consistent results), and a hanes sock filled with 2lbs of lentils for a rear bag. The best rest is the one you use.
44.5 grains RL-15