Some credible sources claim those MWTs may be fine for certain very limited applications...I suppose, but why buy those when there are so many fairly priced examples on the market now with good barrels?? Doesn't make sense to me unless you are getting a 10K gun for 2K and are planning on having it sleeved before importing to the US.
I had a proofed as 12 gauge Greener hammer gun that had been hogged out to .783 (not a typo) 10 gauge dimensions and it still had a MWT of 21 thou at the thinnest spot. No need to pretty much ever go below 20 unless buying some thoroughbred ultralight wand made by Purdey, H&H, Boss, etc. with original bores.
