Okay then. Douglas quit making ML barrels because they were sued, successfully by some idiot that blew one up using smokeless powder. I also know you can split pretty much any ML barrel if you leave a good air gap over a stout powder charge. That is not a defect in the supplied barrel.
Douglas has continued to make smokeless barrels ever since, and still sell a ton of them for everything from hunting rifles to BR guns. My favourite hunting rifle is a 5lb Melvin forbes built Ultra Light Arms model 20 in 308 Win. He uses Douglas barrels exclusively becuase he finds them much more likely to shoot well with the very thin barrels he mounts. He will do other barrels if asked but he tries hard to talk you out of it.
The one he built for me will push a 130 grain Barnes at 3150 FPS, with no signs of excess pressure at all. It will also put 5 quick rounds in just over an inch, at 300 yards, and doesn't walk as it gets hot. Barrel nad bedding work flawlessly together.
I have had 4 Douglas CF barrels, all have been great and I now have one ML with a Douglas barrel.
Douglas barrels have been winning major competitions for over 50 years and continue to do so. I repeat that I would have no hesitation in using a Douglas barrel, and I add of whatever vintage. The one on my flinter is 27 years old and has stood up great, and still has very good accurracy. I would buy another ML gun with a Douglas barrel and if I could find one, I would have a gun built with one too. That said, if you aren't comfortable using them, by all means don't. There are lots of other choices.