Larry,
Indeed, the 707 was available with 30 tubes, but, would have been factory bored full and full:



This is an image from the 1968 Richland catalog. The dividing line between quality, and, of course, price was very sharp between the Italian built guns, and the Spanish guns. Im guessing they sold far more of the Spanish guns, which, would be just one reason why people like ed think Spanish when they hear the name Richland.
The 707 was also available as a two barrel set, per the catalog, as were the Spanish versions.
Miller has described the action nicely, along with the modifications from standard 20 bore to what F.E.Sell prescribed as ideal. The weight for a 28 20 gauge in the catalog is 6 lbs, 8 ozs, almost exactly what my gun weighs, porky for an upland 20 gauge, maybe perfect for a 20 that would see a lot of 3 fodder.

In a few years of looking at the guns for sale on the internet that Al Gore invented, I have only seen 28 model 707s. I would love to stumble onto a multi barrel 707.

Stan, you suffer fools well. God bless you.
Best,
Ted