I've owned the Browning versions of the 42 and Model 12. In fact I believe it was McIntosh who wrote about all the Best guns he had seen and he added the Browning Model 12 in the list even though it was not a double just because he felt it was just made so good.
I sold mine and ended up with a pre - war 42 with a 26" barrel.
Shot doves with mine, it works great with the full choke.
I also had it restored so it is not a collectable so much now.
Love those 42's

Mike Proctor