Lead ?

[Kurt]

Here is a cast from a original Sharps .44-77

Here is another original .44-77

This is my .44-75 Ballard everlasting.

The left cast is an example of the standard Shiloh .44-2-5/8 BN chamber. It has the now used 45 degree chamber end that leads up into the lead.
The right cast is a cast I got from a like new condition 1877 #1 Sharps long range Creedmoor rifle. I had a reamer made from that cast. The original cast has a flat 3.5 degree chamber end like the other casts above but I changed that transition to a 5 degree, now wishing I left it as it was in the original.

I have seen a chamber cast of a .45-2.6 late model Borchardt I could not get this cast but it had a more blunt transition at the chamber end, guessing about a 18 degree. This came out about the time of the .30-40 Krag.
I made a cast of my .45-70 Trapdoors and both have a flat transition also.

Below is a chamber cast of a .22 rimfire. It is the only lead bullet chamber that has not changed since it's beginning



Kurt