Please bare with me, Big bore rifles are a little out of my realm here. I am a simple Elk hunting guide from Montana so I will do my Best to answer any and all questions anyone may have on this listing. I purchased an estate of an older gentleman which included these items. So I don’t have their history. I was not able to get the rifle that this ammo and brass would fit as it was already spoken for. So here we go.
39 unfired RMC 577-500 cases $400 shipped

40 unfired Bell 577 base NE cases necked down to 500. ( I don’t know if the can be sized back up to a standard 577NE with damage if them). $400 shipped

RCBS 3 die set for 577-500 3-1/8. Including 577 shell Holder $400 shipped

11 loaded Kynoch rounds head stamped 577-500. $230 shipped

If you would like any other pictures or any questions feel free to ask. Shipping is for continental US. If we are talking overseas ( not loaded ammo) it would have to include any additional shipping and customs.
I do have this listed on other sites so I will try to go by time
Stamp on who speaks for something first. I can forward any all pictures if it would help

Btt