Yes, Jon. I ordered mine through Tom Bryant when he was still at Cabela's in Sidney, NE. Had it in about two months, AIR. You might even find what you want just by calling.
Cabela's and Pacific Sporting Arms are dealers. Just a quick perusal of PSA's stock shows 33 Dickinson guns, 12 of which have double triggers. Cabela's likely has a good stock, too.
SRH
Right you are. However most are sub gauges. I wanted a 12/30. I already owned a 410 Sporter and its exellent build and peformance quality led to this purchase.