Correcting myself, thinking back, perhaps the smoke ring is not so prominent on my briskets, but it's there on pork butts and ribs.
This has been discussed before and I think the conclussion was to get a smoke ring from a Bradley smoke you have to have
introduce something other than an electric element making heat.
Some have put a bed of charcoal in the Bradley and got a smoke ring.
On beef, it is fun to look at every now and then, but doesn't taste any better.
On Pork, IMO due to the color nature of the meat it forms a pinkish hue around the edge.
But I have been wrong before ....
