Howdy
The US Army purchased 1000 Smith and Wesson American models in 1870. These were the first cartridge revolvers purchased by the Army, the sale predated purchasing any Colt Single Action Army revolvers by four years. In fact, the Colt SAA did not exist until 1873.
This is a S&W First Model Russian. It is identical in appearance to the American Model except for the antique coin front sight. The other difference is the American Model was chambered for the 44 S&W American cartridge, which employed a heeled bullet. The 1st Model Russian was chambered for 44 Russian, which used a modern style bullet that was the same outside diameter as the inside of the cartridge case. The Russians insisted on this because they did not want to deal with the bullet lube on the outside of a heeled bullet. Sliding the bullet inside the cartridge case allowed the bullet lube to be carried in grooves on the bullet inside the case.
View attachment 940075
This is a 2nd Model Russian, chambered for 44 Russian. Notice the exaggerated pointy bump on the grip. The Russians wanted this to keep the revolver from rotating in the hand when fired. It does this very well, but I find I have to regrip and place my palm against the pointy bump on the grip in order to reach the hammer spur with my thumb. If I forget to regrip and get my hand back below the point before firing, recoil will drive the point into the palm of my hand and it hurts, even with a mildly recoiling round like 44 Russian. The spur on the trigger guard was also a feature of the 2nd and 3rd model Russians. Totally useless in my opinion, many had the spur sawn off in the Old West. Anyway, in the Army tests of I believe 1873, S&W submitted samples of the American and Russian models for testing. The Army did not like the pointed hump on the grip of the Russian. To quote the Standard Catalog of Smith and Wesson, "the Americans and Russians passed the firing and functioning criteria, but were criticized for their complexity and number of parts. The greater ease and speed of reloading was noted, but was not given much credence as a tactical advantage."
View attachment 940076
The Army purchased 8,000 Colt Single Action Army revolvers in 1873. By 1877 the Army had purchased about 15,000 Colts. At this time Smith and Wesson was operating at capacity selling the Russian model to the Russians, Japanese, and Turks. They eventually produced about 150,000 of them. However S&W did not want to be completely left out of US Army purchases. Col. George Schofield had been working on an improvement to the American Model as early as 1871. His improvement moved the unloading latch from the top of the barrel extension to the frame.
This is a 1st Model Schofield. The serpentine shaped latch can be seen mounted to the side of the frame. The idea was a mounted trooper could open the latch with the thumb of his right hand, brush the barrel against his leg, and reload while riding and controlling the horse with his other hand. He could close the action by brushing the barrel against his leg. To open and reload the American or Russian models it pretty much takes two hands, it is difficult to open the latch with the thumb of the shooting hand. I can do it, but it is difficult. Much easier with a Schofield. (No, I don't know the front end of a horse from the rear, but I have tried this stuff seated in a chair.)
View attachment 940077
The Army insisted they wanted a 45 caliber hand gun, and previous to this the American and Russian models were 44 caliber. It was not difficult to open the chambers and bore of the Schofield model to 45, but the cylinder was too short for the 45 Colt cartridge. S&W was not going to retool for a longer cylinder while they were producing all those Russians. So the Army agreed to the shorter 45 Schofield round, which carried less powder and a slightly lighter bullet. In total the Army only purchased about 8,000 Schofield models starting in 1875 and ending in 1877. Much has been made about the incompatibility of the 45 Colt round if shipped to units with Scofield revolvers, I have never seen any recorded reports of this actually happening. In any case, the Army was interested in purchasing more Schofield models in 1878, but S&W was not interested in producing any more. By this time the New Model Number Three was coming out, which was the best of all the S&W #3 Top Breaks, and S&W probably wanted to concentrate on the New Model.
In a nutshell, that is why the Army purchased a lot more Colts than Schofields.
In answer to the OP's questions, the replica Scofields produced by Uberti are proofed to a standard which is slightly higher than our SAAMI specs. So they should stand up to any standard SAAMI spec 45 Colt round. Quoting bullet weight and velocity is meaningless. It is
pressure that blows up cylinders, not velocity. The same bullet weight and velocity can produce significantly more
pressure in some loadings than others, depending on the type and amount of powder used. I will state that a solid frame revolver is inherently stronger than a Top Break. This has been argued on this forum many times. So I suspect a solid frame revolver such as the Colt will shoot more rounds than a Top break without the frame stretching. I have seen lots of old Top Breaks that no longer latch up properly because the frame has stretched over time.
Personally, I can't imagine why anyone would want to shoot jacketed bullets in a Schofield, but to each his own.
The Schofield is just as big as a Colt, and just as difficult to conceal.
View attachment 940078
As far as being 'better', yes it is unquestionably faster to reload a Top Break than the Colt Single Action Army. However the Army did not seem to give much credence to that in the 1870s. Yes, it takes two hands to reload a Colt, and you have to pop out the empties one at a time and reload each chamber one at a time. With a Top Break you break it open and the empties fly out. Usually, not always. Sometimes I have to flick an empty out with my thumb. The extractor does not eject empties like the ejector on a shot gun does. All that happens is the extractor pops back down when the gun is opened all the way. And nobody ever mentions what a pain it is if the extractor jumps down under the rim of an empty. It is a real pain, trust me. You have to pull up on the extractor and wiggle the offending empty out from under the extractor. What I have found works best is to flip the gun to the side a little bit as you break it open. Then gravity helps dump the empties out.
Regarding lemons, the early Schofields produced by ASM were pretty bad. The Uberti guns are fine.