Dave 101 wrote:What were you using Minie ball or round ball and what was the accuracy like .
Dave
For the real gen on Enfields, I don't think you can beat this article, which has a wealth of information, written by Bill Curtis (past Vice President of the Muzzle Loaders Association of Great Britain and the holder of the World Record in the MiniƩ Rifle Class from 1972 to 1980).
http://milpas.cc/rifles/ZFiles/British% ... field.html
He also gives a complete rundown on all the variations of Enfields - in terms of barrel lengths, rifling systems, and different manufacturers - as well as advice on powders, loads and moulds.
Re. accuracy, Bill says:
"Given a good Enfield, the practised shooter can enjoy competitive target work at all ranges out to 600 yards."
This comment matches a mass of anecdotal evidence from the US Civil War.
Re. ball or Minie bullet; even with a snugly fitting patched ball, I don't see how it can ever be as accurate as a well made Minie - though there is a point to watch, which I picked up years ago on an American forum. The shooter in question was unfamiliar with muzzle loaders, though a very competent shot with modern rifles, and wisely decided to start off with a light load of powder, and work his way up.
He found the recoil pretty gentle, but the grouping was awful! On the advice of an experienced shooter, he tried increasing the powder load in small steps, but found very little difference in the recoil (and grouping) until he reached a certain load. All of a sudden, there was a sharp increase in recoil, and a dramatic improvement in the grouping. After a lot of discussion as to why, I suggested he check the shape of the base of his bullets, in case the lip around the cavity was a bit on the thick side; it turned out that it was, compared to a Minie from a Lyman mould.
After more discussion, I suggested that the reason for the soft recoil and poor grouping was that, with light loads, the base of the bullet was not deforming enough to give a good gas seal, so he was getting a lot of blow-by, and the bullet was not getting a good grip on the rifling - hence the poor grouping. But, when the powder load was increased to a certain point, the blast was finally enough to bulge the base out into the rifling (hence the increase in recoil), and not only cut down the blow-by, but also ensure that the bullet was properly spun as it travelled down the barrel - hence the improvement in grouping.
He reported back later on that he'd switched to the same Lyman mould as his friend, and could now vary the powder charge quite significantly without affecting the grouping.
I have a theory about the way Minies work, and would be interested in anyone else's opinion on this. For a long time, I wondered about how the base of the bullet gripping the rifling could steady the bullet so well - but, if it was only the base that deformed, how could the upper section of the bullet have any stabilising effect? Then I thought about the nice, squishy soft lead - Curtis recommends the purest lead you can find - and the way it would behave under violent acceleration. Uh-huh.
The powder fires; the shock wave hits the base of the bullet, and the base jumps forward; but the main body of the bullet momentarily tries to resist that forward movement due to its considerable inertia. So what happens next? The main body of the bullet bulges outwards - right into the rifling; so the rifling is not just gripping the bullet by its base, but right up the parallel section of the bullet, until it starts curving in towards the point. Maybe the inventor of the Minie worked all this out and wrote it down somewhere, but I've not seen it - though my theory does seem to match the reality of how accurate a well-made Minie can be in a good barrel.
Over to you guys; what do you think?
Best regards,
Jack