Depending on which Italian manufacturer made your musket, the nipple might be 5/16" x 24 TPI, but more likely 8mm x 1mm. I would check the musket to verify the manufacturer name and the date of manufacture, and then call either
Regimental Quartermaster or
Lodgewood Mfg. for advice. Lodgewood has a gunsmith on site, but I don't see that they actually sell replacement nipples in 8mm x 1mm. Regimental Quartermasters definitely sells nipples, and their staff are very knowledgeable even if they aren't actually gunsmiths.
Track of the Wolf also sells all sizes of musket nipples, and they could probably advise you of the correct size to order.
Regarding the date of manufacture, you should find a little box stamped on the barrel near the breech, with two letters in it. this is your "date code," which you can check against this chart for the year of manufacture:
Many thanks, by the way, to whoever posted that chart on this forum in the first place. I saved it on my computer, and it has come in mighty handy on several occasions.
Depending on exactly where the date code was stamped, there is a chance it may have been removed in the defarbing process. The date of manufacture may or may not make a difference in the nipple. I
think Pedersoli uses the historically correct 5/16" x 24 nipples in their musket replicas, but I don't believe they have ever made an M1842. You could just order one nipple of each size and try them (carefully) in your musket. They don't really cost that much, and you could probably return the one you don't need for a refund or exchange.
Anyway, good luck with your musket,
@6thtexas , and welcome back to muzzleloading! I have an Italian M1842 defarbed by Todd Watts, and it is absolutely one of my favorite guns. And yes, the defarbing is worth the price, not just for authenticity, but it makes a slimmer, better-handling gun.
Best regards,
Notchy Bob
