I have a recommendation for those that need a ramrod now that Mr. Hubbard isn't making them.
I picked up a Thompson Center 20" fiberglass ramrod (made for TC BP pistols), and a 4" screw-in TC ramrod extension (part # 9039, full sku #0 90161 00349 1). Attached together, this makes a 24" ramrod, compared to the factory OEM 25" version. Taking into consideration the powder/pellets and sabot/bullet, the 24" provides more than enough length, to reload in the field. The only bad part, is that you have to carry the extension separately, and then need to take it out of where ever you put it, to screw into the longer section.
There is a possibility that TC, also makes a 5" extension, but I didn't bother looking for it as the 4" version met my needs. I currently have it on a older 45 cal, Huntsman.