Now that brass is available, from Hornady and Winchester most of the time, I can see it making a come back.
I have one, an older Dtech that I traded for a year and a half ago. I didn't do much load work, just looked at old threads on here and went with tried and true Varget under an 87 gr vmax loaded to max magazine length. At 41 gr, which seems warm, everything came together. I've gotten 500 yd groups when practicing off sticks from a sitting position well under moa, closer to 1/2 moa. It's a laser for sure. That load clocks between 32 and 33 hundred, can't remember the exact number off the top of my head.
Barrel life, from what I'm told this barrel had 300 rounds when I got it, now maybe 400 or a hair less if that was right. There is some erosion in the throat, sort of a circular ring that actually looks more like a reamer chip but I don't know for sure. The lands look fine still. I don't expect it to last like a 243 lbc, and I don't shoot it everyday or at pdogs. It's for when I expect longer range shots when calling or higher winds, and for deer/antelope.
Shot one antelope last year with an 80 gr TTSX over 40 gr Varget. A fairly mild load, but I only had a couple dozen bullets, and the first 3 went into a clover leaf at 200 yds. Loaded 3 more and had 2 touching the first 3 and the third maybe an inch away. I called it good enough and smoked an antelope at 268 yds iirc.
Mine is a light profile, fluted barrel btw threaded 5/8 for the suppressor. It would be one of the last I would sell. Use a brass catcher, buy a couple hundred pc's of brass and have at it.