The first tube gun was made by Bill Wylde. He had no interest in commercializing it, but his friends did and sold them as the MAK tube gun. Wylde definitely predated TUBB's T2k and I believe that MAK might have as well. Eliseo picked up on the trend and followed suit. Somewhere along the line, there were other one offs. I recently bought a 788 Tube gun in 6BR off a guy that campaigned it in the South West. I'll have to dig up the history for the chronology.
I don't do PRS, but I've been reading that Tube guns are not the hot set-up. For what reason I don't know.
Last edited by ChrisF; 03/04/19.
