I read a post elsewhere that a fellow planned to shoot round balls out of a civil war type rifle musket. I said I had never heard of patching a round ball in a rifle with a paper patch. Others chimed in and said they have been shooting them with good results for years. I suggested he try it and let us know how it works. He has, so far, not responded.
What are your thoughts and is your experience? I sold my rifle musket years ago, am and just curious.
Actually there never were any .58 rifled muskets that I am aware of. Calling the .54's and .58's rifled muskets is a misnomer. A rifled musket is a firearm that started it's "life" as a musket (smoothbore), but was later rifled (after 1860) for shooting the then adopted Minnie-style projectile. Thus those are rifled muskets. All of the rifled muskets are .69's- whether Harper's Ferry or Springfield made. Some years of manufacture did not have adequately thick barrel steel for rifling, some did. The 1842 model percussion .69 did have adequate steel and was recalled and rifled, turning it into one of the very best rifled muskets. Some Army Commanders preferred the rifled musket .69's to the newly issued .58 Rifles, as the .69's showed much better accuracy. This information, in much greater detail is contained in "Firearms of the American West 1803 - 1865"
I started shooting cloth-patched round balls in military muzzleloaders in around & after 1975. I re-crowned the rifles for the lads to a nicely smoothed radius to prevent cutting the patch when loading, then got the guys using .562" round balls in the replica Zouaves and Parker Hale Enfields with .020" denim patching. We soldered re-filed blades onto their existing 'issue' sights to get them zeroed for shooting at rendezvous.
The muzzles of ALL replicas are too sharp and will cut the patch - the muzzle crowns need to be reworked.
Patched round balls gave better accuracy in ALL .58's and .577's we tried them in - and continue to do so today.
I use nothing but patched round balls, in my Italian 1861 Musketoon, bot some day will likely try Minnie conicals at long range at our Blackwater facility which has steel plates to 1000 meters.
For normal range shooting, patched round balls have so far been superior for me, and actually are all that are allowed at our black powder shoots or on the trail walk Thus, it is a good thing they give such good accuracy.
I was able to get 3" to 4" groups at 100 meters when developing loads for my 1861 carbine.
The right-hand rifle's muzzle is my .577 (actual .574") Musketoon model 1861.
Paper patching with round balls, which about all military's of the world issued for their muskets, should or may work well in these rifles. The issued paper ctgs. had grossly undersized balls. We've found the ball should be about .005" smaller than the bore only, for use in rifles with a double paper wrap. The paper should be very quite snug in the muzzle, yet the muzzle not so sharp as to cut the patch - same as with cloth patches.
I found in my .69 rifle, I could fire up to 10 paper ctgs. without accuracy loss, but then had to fire a cleaning shot with a wet patched load having normal cloth patch and a round ball. Once firing that one, I could load and shoot another 10 paper ctgs. with good accuracy.
The wet patch cleaned out all the fouling buildup from the previous 10, non-lubed shots.