Now that the thread has allowed me to post, here is what I wanted to tell you........
In my very, very limited experience with that rifle, I discovered that shooting Minies is something of a trick.....
I am told it is due, in most part, to the progressive rifling of the Colt, but a similiar situation exists with most all Minies, and that is matching the powder charge to the "skirt" of the Minie.
In particular, the 575213PH, a heavy 562gr "
weighted forward" (the majority of the weight is beyond the hollow cavity) Minie with a very stout, thick skirt, will take a rather hefty charge of powder w/o blowing the skirt.
A 575315, 315gr Minie has something of a thin or fragile skirt and appears to do best with around 40 / 45gr of FFFg Goex.
The RCBS NSS Hodgdon .580 @ 416gr is another good Minie for this style of rifling. This particular Minie has a very wide margin of error for powder charges and some even feel you can safely go up the charge of FFg to 120+ grains for hunting and still maintain accuracy.
The one thing that is certain when using Minie Balls....if you blow the skirt, you will loose accuracy. Plain and simple.
A friend of mine in Olympia, WA has a Colt 2-Band, and he prefers the Lee REAL for hunting....it is a .592 @ 440gr and I have chronographed that particular Minie, over my own chronograph, at 1800 fps from his gun..... I don't recall the particulars of lube, or powder charge, but that is one whup butt chuck of lead for hunting.
Personally, I have always though the Colt was quite possibly the most handsome of all the muskets made.
Col. Sam Colt sold the Government a bill of goods when he came out with the 1861...promised the world that the parts would interchange with the Springfield, and they could use all the "extra parts" they had on hand in his gun if the need should ever arise...that was all just sales talk because only a very limited number of the parts do actually change out without special fitting.
You may want to read the following, if you haven't already.
http://www.civilwarguns.com/specmod.htmlGood luck, and I do hope ya bring home the bacon with rifle!
Uncle Russ...