
December 1, 2012

If you are speaking of an original Model 1866 that is a Cal .44 Rimfire, the part is called a striker and resembles a thick washer, threaded in the center and with 2 rimfire firing pins on the edges that line up at the 3 and 9 ‘o’clock positions. Try part no. W6630 here: http://winchesterbob.com/?page_id=48
You might also check this out: http://hlebooks.com/patents/winch/1866/w1866.htm
The modern centerfire replicas wouldn’t have a need for a threaded tip.
"This is the West, sir. When the legend becomes fact, print the legend."

June 4, 2017

If you are talking about a Winchester 1866 rimfire, that uses 44 Henry shells, the gun has a ring with two prongs threaded on the front of the firing pin. Changing the ring is not a simple task, you remove the firing pin by removing the side plates,butt stock, hammer spring, toggles, and drive the bolt pin that holds the shell ejector thru the hole in the receiver and turn the firing pin out. On a 140 year old gun it is not going to be easy to turn the firing pin on the ring. You need professional help. T/R

June 4, 2017

I bought the stricker and firing pin assembly from Winchester Bob, but was unable to fit it to my guns. I had the two prongs welded on the original strickers and reused them. I have done this twice. Next time I will leave it broke, you can not buy ammo that shoots anyway. T/R
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