I have four boxes of these. They measure .456 in diameter. There are 45 in a box. Retail on box is $32.95. I will sell them for $15 plus shipping. I can take them out of the box, flatten the box, and ship one, two, three or four boxes for $11 total in a small Priority Flat Rate.
If you want pictures I can email them.
Payment via personal check.
Perhaps these would work for a .45-70 if you lubricate them and keep the velocity down.