I picked up an old Winchester 92 a few months ago and finally got everything I needed to make some .25-20 ammo.
Did some research here and followed a link to an excellent post on the .25-20 M.O. forum.
Ran a bunch of patches through it to clean it up and hit the range. Looking for a decent shooting load with the RCBS 85gr CB bullet.
3.5 gr of TB was nice and quiet, averaged 1042fps. 3.3 gr Universal came in at 1138fps and 3.0 at 1059fps.
I was at disappointed with the accuracy. Then I noticed that all of the holes were crisp on one side and a bit elongated on the other.
Ran a bronze brush through it and got lead shavings.
After brushing the lead out and and then some I looked through it and it does NOT look like the inside of my .38-40, although it's harder to look through that little hole.
I think the bore is pooched. Here's a couple of crappy pics, but they're the best I could get.