rodwha- yeah, the original were more pointy. If you are interested in them the best thing you can do is contact Dixie gun works as they have (or used to have) the historically correct conical with a rebated base, the whole deal.
But...the pointy conicals actually were an inferior design. The driving band- or that portion of the conical that was chamber diameter, was very short and when the conical was rammed/seated the conical could actually twist a little sideways and result in a runout issue that did little for accuracy.
That Kaido conical. He has used it here in Florida for hogs and on a small/moderate 60 pounder the concial went from neck to tail through the whole hog. Pretty impressive. I think they were using a special powder with maximum charges and were getting results similar to the 44/40. Since the central part of Florida with palmetto flats and range is sort of similar to central Texas- I'd think the same load ought to work fine for you. I've been following the group using that Kaido conical. I think you might need a Remington Type revolver with a top strap as they are pushing things to the limit but still, I've been inspired. I've always favored Colts but now I want a Rem 1858 and join those guys on their next hog hunt. High times.