Here' some comments on Pope's muzzle loading system. Parts are actual Pope statements............
"Will Hayes was another of the old-timers. The Pope muzzle-loading system might never have been developed if I hadn't met him at the Newark Schuetzenfest in 1888. He was the real inventor of the 'Pope' muzzle-breech loading system. "Hays wanted a gun to load greased bullets from the muzzle, for accuracy, and yet use metal cases for convenience of loading. The rifle was made for him about 1884 by George Schalk.
Schalk didn't want to make such a crazy gun, wouldn't put his name on it, though after he saw it shoot he put it on in a hurry. It was a 16-pound ..33 caliber on a Ballard action, using .32-40 cases and a grooved 162-grain bullet with no patch. Hayes offered to lend it to me. Of course, I didn't accept, but I did make one like it.
"I was still making barrels for myself alone. That first muzzle-breech loader I made was in 25 caliber, after seeing the results Hayes got with his Schalk rifle. Then I made two or three lighter rifles like it. The cases were made from .32 Extra Longs, and held 30 grains of powder with a 120-grain bullet.
"Not long after that I bought a heavy .32-40 Winchester Single-Shot and rebored it for a .33 muzzle-loader. With it I began to win. So far that rifle has been fired about 125,000 times, and all with the old mercuric chlorate primers. They're supposed to raise hell with a gun, but it's perfect yet, after that use.
"It was at this time that I would save money to come to the New York matches from Hartford. Every time I'd go broke, have to borrow money for entry fees, then go home and borrow some more to pay my New York debts - that is, unless I'd been lucky and taken enough prize money to repay them, and then I'd be home again saving for the next trip."
By this time the Pope muzzle-loading system was developed in its final form. Harry had modified the Schalk method of rifling as used in the original Hayes rifle: his own consisted of eight wide grooves on a radius about three times that of the bore, gain twist, with the corners of the grooves rounded instead of square, which tended to make cleaning easier. The grooves were cut just deeply enough to clear the bore in the center and give a depth at the corners of about .004 inch, half that of Schalk's rifling. The lands were very narrow, about 1/8th to 1/10th the width of the grooves. The bore was given a slight, gradual taper from breech to muzzle.
To be capable of fine accuracy, Pope found that a bullet must be delivered from the muzzle with a perfectly square base. Breech-loading will not do this as fins of lead invariably are swedged out of the base of the bullet when it enters the construction of the bore nose first. To overcome this prime cause of inaccuracy the Pope bullet was inserted at the muzzle, the case with powder being afterward placed in the chamber in the ordinary way. By the simple act of pushing the bullet down the bore base first the dirt of the proceeding shot was scraped down the bore ahead of it, leaving a uniformly clean channel for the bullet when fired. As well, the base of the bullet remained square and concentric.
Each bullet had to be entered through a tapered false muzzle that gently swedged it into the bore without deforming it. The entire Pope system of muzzle-loading was developed to affect the delivery of a perfect bullet with its centers of weight and form true and undisturbed. By obtaining a phenomenal uniformity of delivery. Pope was able to secure the same uniformity in his results, reducing the error at the target to a minimum.
"Now look here. You say my muzzle-loaders took longer to load. Actually that isn't so. The total loading time was the same as for an ordinary breech-loader. Just to show you: I was alone at the range one day, didn't have to hurry, and noticed the time I took. In two hours and ten minutes I had fired 100 shots, which meant re- and decapping the shell, throwing a charge, lubricating, starting and seating each bullet as well as the normal procedure of firing offhand. You couldn't load 100 cartridges with a modern loading tool and fire them carefully in much less time.
The superb accuracy of these rifles, properly handled, is unchallenged. Pope guaranteed that any of his muzzle loading rifles, with the exception of the 25 caliber, would shoot into 2 inches at 200 yards, loaded from the muzzle. Groups made by Pope, the late C. W. Rowland, dean of the old-time rest shooters, Donaldson, Roberts and others, that show ten shots at 100 yards and even 200 yards going into one ragged hole, have often been published. Pope himself has one 200 yard target that shows 10 shots grouping within 5/8 of an inch, center to center! Though temperamental, the Pope muzzle-breach loading Schuetzen rifle, under proper conditions and in the hands of a rifleman willing to study and master the methods that must be used to get results, will yet outshoot up to 200 yards any other type of rifle in existence."