I use the Wilkins pellet pouch for storing the pellets in a competition. They come in three sizes. Choose the largest one if you have thicker fingers, otherwise the medium is more elegant and will carry around 200 pellets.In HFT the sitting position is not allowed so you can carry a bum bag or bucket but you're not allowed to sit on it while taking the shot. Or do US-shooters have different HFT-rules?
5. Bi-pods or shooting sticks are just that. If you have a bi-pod attached or un-attached it is up to you.
Monopods, shooting sticks, or bipods may be used, but not tripods. Any such aids must rest on the ground and may not be driven or otherwise embedded into the ground or shooting pad, and cannot be attached to the gun: must release from the gun as the gun is picked up, and must not connect to the gun with studs or devices that restrict gun movement.