I don't know who made that barrel, but one of my mentors had an original barrel with narrow grooves, and wide lands, that shot well. This was not an odd configuration in the old days. But, it had to be swabbed after every shot. Those narrow grooves collect lots of fowlings, and stopped doing their job pretty quick. They were also a pain to get clean. I believe these barrels were the reason many old timers shot one day, and cleaned three days. They were also notorious for being hard to get a good patch seal. This may very well be where the very tightly patched loads came from. Some of these old guys were the first ones I ever saw that had a little mallet to drive the load down the bore.
Hungry Horse