Yes we had a tube, about 400mm diameter, made from plastic barrels that we cut the bottoms off. The plastic barrels had a top collar where the lid fits, and we made the holes in the base the right size so that the collar of one barrel was a good fit in the next barrel's "hole in the bottom"! Carry this on for many barrels and you have a tube.

As it happens that setup ( which went to 42 yards and was going to be extended ) has been decommissioned as we are currently building a new facility giving four covered lanes to 25 metres and two full height lanes to 50 metres that will be wind-free under most conditions.

To the OP, the first time you shoot in your tube, don't be startled by the noise.

Our barrels being blue, it meant there was only blue light (short wavelength) to illuminate the target card. Good FT scopes would rangefind the target card at 40 yards whereas we knew the card was at a measured distance of 42 yards. It just shows how you can rangefind a target differently in different light conditions.