Bill, Close good pictures of the stock, elevator, and sides of the receiver would be a good place to start. The Sioux and Cheyenne have a picture type language and mark ownership and battle stories on the soft parts, (wood & brass) of their guns. It’s not always tacks and rawhide! Some Indian guns are honest pieces.
One example of neat Indian markings is on page 46 thru 49 of the summer 2017 edition of The Winchester Collector magazine. That’s a near perfect example, most Indian marking are rough and crude but have meaning.
The 66 carbine was the weapon of choice in 1869 for any dog soldier plains Indian or white man in Indian territory. T/R
December 20, 2014

Merry Christmas to all, and question on this 1866src
It looks like it has the 2 rimfire pens but also a center fire pen in the firing pen.
This is a early 3rd model , I would not think It should have a center fire pen, I know they went to center fire in later years, it just seems strange to me there are 2 different firing pens.
Thanks Again
Bill
Bill,
That is a center fire conversion. The rim fire tits have been filed down.
Bob
WACA Life Member--- NRA Life Member---- Cody Firearms member since 1991 Researching the Winchester 1873's
Email: [email protected]
There is a firing pin sticking out.
Bob
WACA Life Member--- NRA Life Member---- Cody Firearms member since 1991 Researching the Winchester 1873's
Email: [email protected]
1873man said
There is a firing pin sticking out.Bob
Sorry Bob I edited my post as you were replying. I’ll take a better look. After looking I don’t see anything sticking out but there definitely is something in the hole in the center. Normally this would be threaded so the clapper could be attached and flush at the end.
Bill, Some 66’s were converted later by owners to center fire and that’s what you have. They filed off the two points on the striker and inserted a pin in the firing pin, later they just welded a point on the firing pin. Simple conversion but not as easy to go the other way. You would have to file off the point on the pin and replace the striker. The striker is to thin to weld unless you have small welder and special skills. Winchester Bob sells strikers and bolts (firing pin) reasonable. The striker is threaded on the bolt. Removing the bolt from a 66 is tricky, ask for help if you go there.
If you find the right brass you can shoot your 66 center fire, if you convert back you can’t. T/R
The length of the 44 WCF cartridge is too long and is way to small in diameter compared to the 44 Henry rounds. I don’t remember the 44 WCF diameter but the Henry case diameter is the same as the bullet .445″. This isn’t always the same. Different diameters were made at different times. Other makers than Winchester and New Haven Arms made this ammo and they come in different lengths, weights and diameters. I have a lot of singles and have measured many. Some will not chamber in my Henry or 66.
All, this topic has come up before. Reference somewhere when Shrapnel and company got his 1866 to shooting. He had a thread on this forum about that, but then the final details that were tweaked to make it work were not provided. Then an article I authored in the “Collector” Spring of 2015. Brass that is available and good point to start is .44 Russian. Most likely need to trim its length. Bullet needs to be something akin to a heeled bullet. Currently can’t think of the bullet mould company that makes similar moulds. I have this thing about not being able to recall important names when it counts! Tim PS. Maybe Accurate moulds?
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