ETEX, thanks for your note and I hope to get the chance to meet you in the near future. My MM-476 was recovered from a 1st Texas Regiment Camp, near Dumfries, VA. I purchased it from the gentleman who, along with his hunting partners, recovered several MM-476s including one fired example. In his research of the 1st Texas, and the camps in the vicinity of Dumfries, he established a pretty close tie between recovery locations of the MM-476 and 1st Texas Regiment camps. Based on e-mail correspondence, and a bit of additional research that had an early muster of the 1st Texas in New Orleans, I have to wonder if there is a tie between New Orleans and the bullet. I know the one Tom Stelma has photographed in his book was from the NOLA collection, but the recovery site is unknown. As far as I know, none have been recovered in western theatre sites.
The story of the 1st Texas Camp as written by Mr. Robert Alton can be found at the following web site:
https://billriski.backpackit.com/pub/1707764. The following is exerpted from that article: "With just over 225 rounds recovered, 75% were .69 cal smoothbore, 10% .54 cal smoothbore, 9% was a mix of .36 and .44 cal pistol bullets, 3% Smith Carbine rounds, and the final 3% were a mix of .69 cal rifled 3-ringer bullets, and most importantly several Von-Lenke bullets (one of them being in fired condition.) For consideration with regard to the Von-Lenke bullets is that they were carried exclusively by the First Texas Volunteer Infantry Regiment in this period and theater of the war. These bullets have been recovered over the years, from several First Texas picket posts within a three-mile radius of Dumfries, VA."
Glad to be a bit of a contributor to the forum.