Am after some thoughts on this topic, and am sure it has been discussed before. I shot a cull buck on Friday from the sticks, but found that the bullet had gone way higher than expected at the range. I know my rifle is shooting where it should be as I shot a fox whilst I was walking back to the car with my buck and had zeroed the rifle only a week or two previous and it was spot on. I was shooting off tripod sticks standing on a hard forest road surface, and seemed to feel more recoil than usual.
Does anyone else notice this happening when shooting off different surfaces? They are "X3M1" type sticks with the foam handles and plastic feet, lightweight aluminium legs, and a nylon type strap across the top. I have never had a problem when shooting with them off soft ground. What does everyone think?