The M1853, 1854 & 1857 were basically new made variants of the M1842. I quote from The Rifle Shoppe:
'In 1853 the breech bolster was widened to move the nipple over slightly, making the bolster project out about 1/8" to the side of the barrel instead of flush as on earlier models. The caliber remained .70 smoothbore. The 1857 model was produced with a rifled barrel and most of the 1853’s were sent back through the arsenals and rifled, which were then designated 1853T (Transformed). Also in 1857 the 42 1/2" infantry barrel was reduced to 40 1/2" and most of the 1853T’s were also shortened. All parts are the same as the 1842 model with the exception of the breech bolster.'
The French started using the Minie/Delvigne ball before anyone else and their cartridge pattern was copied by the British.
The M1842 was the production new made successor to the converted M1822.
It is worth noting that the French rifled muskets initially used the Thouvenin pillar breech and not the Minie/Delvigne bulet. The bullet was flat based and expanded by being hammered onto the breech pillar (Tige) by the ramrod.
I think the conversions to percussion of the M1822 began in 1839.
After knowing the model name, I searched for a huge amount of information.
However, my question has not been resolved.
So I'm going to ask you a few more questions.
I think it will be a very difficult question.
Clearly, the country that invented the minie ball was France. However, as far as I know, the first French-made minie ball infantry musket is the M1857. If the M1857 is correct, it lags behind European countries with similar minie ball. So my questions arise.
1) The first French line infantry minie ball rifle-musket was the M1857?
2) What is the ammuntion of M1842, M1853? Is it a round ball?
3) The development of Minie ball is in 1848. However, the French Rifle Musket M1857 was developed in 1857. There are almost 10 years of time.
Which gun was the French Minie ball used during that period? Was it used for rifles used by light soldiers?
4) Please look at the picture above. Can you say that a French bullet worthy of a minie ball is an mle 1854? The first French minie ball was the mle 1854?
I hope you will reply as far as you know.