Yes, it's harsh on em. But Alicia likes when I wear them out. We wouldn't want her to starve without any chamber work to do.
In all honesty, I get 2 really good seasons out of a dasher barrel. But i test a LOT of things, besides just shooting matches. Erosion is probably quicker, and the fire cracking also. This is why I won't use a bore scope on my own barrels anymore lol. Once I have a couple matches on one, I don't even want to know how bad it looks. I suspect there's more to be had, but I just love the tuning/testing of new steel.
Tom
Gosh damn I wish more people had your mindset!!!