Walmart has had the Spartans, I saw a few there the other day so they're still in inventory I suppose, for $97.50. I was tempted, but I have an old 16 gauge single shot Iver Johnson that shoots fine and a 10 gauge H&R that's my latest purchase and an auto, a pump, and a side by side 12, so whadda I need a single shot 12 for? LOL! I have a little Spartan 20 gauge coach gun and love it, very tough little gun and a great shooter. At 97.50, that Spartan would be very attractive if I were in the market, but hey, I echo the H&R suggestions, too! Those guns have been around forever, are not expensive, and are tough to beat in the field. I bought the 10 because I didn't wanna spend 700 bucks on a 10 for goose hunting when I hunt geese specifically about twice a year. I wanted a 10 gauge, though, and the H&R is about the most affordable out there and is danged reliable even if you only have one shot, which really doesn't seem to hamper me shooting geese. When they commit and cup, takes 'em a bit to gather up steam to get out of dodge. I've have a few second shots on 'em even with the single shot, but haven't connected on a double, yet. Only a matter of time, though, and I'll be impressing my friends.
Once you get the hang of it, with another round in your off hand such that you can shove it in with your thumb, fire, eject and load, it's quite quick.
One thing, a single shot is normally light. My 10 gauge is 9 lbs, but the 12s are more like 6. They do have some recoil. Even the 20 gauge H&R I bought my daughter had some impressive recoil.. Just not enough weight there IMHO. Of course, that makes 'em handy in the field. 21 rounds out of that 10 on one hunt last season and my shoulder was a might sore the next day even at 9 lbs. LOL!
I do like the H&R for another reason, too. The stock mates flat with the receiver like a repeater. Now, the 10 has a quarter inch more drop and comb than the 12s and 20s and fit me quite well out of the box. However, if you need to adjust the drop or camber, you can do it with the H&R using shims cut from pop bottles. Now, my old Iver Johnson is much like a double, tang coming down over the stock. There is no way to shim that one. Fortunately, it actually has a little too much drop. So, at least it's easy to get used to, though I haven't used it in many a year. It was given to me as a youngster and I hang on to it for the memories.
