Originally Posted by RyanM
Just agree on a maximum size, for example, 25cm long and a diameter of 20cm and specify how it is to be used i.e. on it's flat, under the ankle. Use your own roll, made from whatever material you wish filled with whatever you wish.
You couldn't have a 'one-for-all' size anyway as it doesn't account for different sized shooters.
I just realize that by size I should had wrote density, the size/shape must be standard and that will define the maximum size, if half-filled will serve a smaller person .
But we already carry rifle and seat, why use a shooting role when we can fold the seat?
Itís always better to use the KISS principle (Keep It Simple Stupid)