The curiocity never ends

[Kurt]

Naw no rain but there may some thunder

Now remember the two shot in a .45-90 Standard chamber the .45-70 case mouth is back quite a fair bit where the chamber wall will be greater them the .45-70 chamber is and those bullets are from a custom mould with the shank diameter of .4596"
For that 121 bullet a better alloy would be 1/25 T/L

Edit......Forgot to say that some mould makers might have never looked at a bullet baseband after it was shot.