Well the struggle with the .577 caliber Parker Hale made 1861 artillery carbine continues.
With the lack of good soft lead here in Alaska. ( yeah odd ) I bought a couple hundred Minie' bullets from the Civil War Bullet Man.
This 24 inch carbine is not as easy to shoot for groups as is a regular long barreled Zouve or Enfield.
Originally I tried some tight fitting Minie that I was using in my old Italian made Zouve.. They shot groups the size of a turkey platter at 50 yards from the carbine..
I was also stuck using crappy CCI ( re-enactor musket caps) ,,, BUT last Sunday a friend of mine gave me two tins of very old ALCAN musket caps. Made in Alton Il. They work......
So I hit the range with some Lyman OS Minies sized to .576 and some thick skirt Rapine Minies also sized at .576.
With a clean bore the weight of the steel ram-rod is enough to darn near seat these Minies. Of course that changes after one shot.
I played around with Swiss 1.5 F and Goex 2F.
The sweet spot so far seems to be between 55 and 60 grains by volume. And this carbine really prefers the Lyman OS.
So far the best I can do at 50 yards is a 2.0 inch group with the Lyman OS. 4 in 1.25 inches and the last round out to 2.0 inch
The Rapine heavy skirt Minie bullets were a 5 inch group. The first 4 shots in a 3.0 inch group with the last round flying out.
The sight is fixed for windage and of course it shoots a little off to the left...
I tried 60 grains of Swiss 1.5F and it was a much hotter load than Goex. The group centered, but I was getting odd flyers from what was a super good group. I think the hotter load is making the bullet skirt deform from the muzzle blast.
I am starting to think that .577 sizing might work a little better than .576. I am spit patch or dry patch cleaning between shots.
I should add that my trigger pull is horrible....