I shoot Remington Thunderbolts at the rangeall the time because they are cheap.Only common problemI've encounteredare misfires, bothwith my 22/45 and Buckmark. Thunderbolts have never made my barrel look like that video, even after500 rounds. I also shoot them through my Winchester Model 52, and they have never caused a problem.
I have the same problem with the Remington shells in my Mark II so I usually use Federal now. I've run several thousand rounds through my guns and only clean them once a year or some. I've never had any problem with any kind of coating on the bullets.