I posted on here about a week or two ago about trying to find a single shot rifle for $750 or under. A lot of you were right it ia hard to find rifles around that price range but I did find 12 between four different shops. Six of them are .45-70 Springfield Trapdoors. They are the cheapest so I figured I would get some info on them first. Two of them are listed as "Model 1884 Sprinfields", one is listed as a "Springfield Cadet", one is listed as "Model 1873" but the lock area is too worn to see a date listed. One more is listed as a "1878 Model Springfield". The last two are a Model 1877 Carbine and a Model 1884 Carbine. The 1873 Model is the worst looking cosmetically. The other 5 are very clean as they all came from the same private collector. 4 of the rifles in the private collection are in a 8.5/10 condition and one of the 1884 Rifles is a 9/10 only because it had its bluing re done and it has a newer stock not original to the rifle. The 9/10 1884 rifle is $700 and the rest of the 4 rifles are $200-$575. The Cadet model is $575. Now with all that malarkey out of the way I will say that the bores in all rifles are excellent, I asked the shop gunsmith to look at the 5 and he showed me with his camera. All hammers, ejectors, breech blocks (loading gate I think is the name) and firing pins work. .45-70 dummy caps fit in each rifle. Now question is what makes these rifles different ? I see the 1878 and 1873 have different rear sights as well as a different rear sight compared to the 1884s. The Cadet shares the same sights as the 1884s. The 1877 and 1884 have hooded front sights but different rear sights. Are sights the only difference with these rifles ? If so which rear sight would be best suited for deer hunting at ranges of 40-80 yards ? Also which is better the rifle or the carbine ? I would assume the rifle but I wouldnt know. Thanks for your replies to my last post. Out of these 6 Springfields the other six rifles I found were a Krag Rifle in .45 Gov, a Shikari in .45 Gov, a Mosin in .38-55 Win , two Westernfield Rifles in .45 Gov and .32-40 Win and a very old Whitney Phoenix in .45 Gov. It seems most single shots are in .45 Gov. Thanks for your help so far everyone.