I'd caution everybody reading this thread to check their hunting regs. Probably not a problem in Texas, but in other states, that handgun might complicate things when hunting for deer. Hogs are a different subject altogether, as they tend to be considered an invasive species and not a game animal, under the law in most states, and "wild boar" are most often found on professional preserves, so also not a natural game animal.
So where I am, IF I was to carry a black powder pistol for a Coup de Grace on a deer, it would need to meet the BP Handgun Hunting regulations. 40 grains of BP minimum load, AND must be at least .40 caliber. One of the Liege screw barrels wouldn't work for me.... neither would most of the .44 cap-n-ball repros....
Laws are different for private land, and recent SCOTUS decisions have changed carry laws, but for a long time, where I live IF you were carrying a modern handgun, and hunting deer the modern handgun had to meet the modern handgun hunting requirements. So most modern semi-autos, and revolvers, would also be a violation.... there are barrel length regs and cartridge regs involved with the modern stuff.
The comment, "I was carrying it for squirrels" after being found with a less than adequate handgun for deer would merely garner a response of , "Yes sir, please sign the citation where I have indicated" from the DNR officer. In fact in one case a fellow took his single shot modern rimfire rifle with him while BP hunting, and only avoided a citation because the particular DNR officer that morning had spoken to him in the past several times, and knew the fellow was indeed an avid flintlock deer hunter, and let the guy go with a warning.
LD