Ok, seeing the topic is "hog hunting" and what to use, please allow this video from Texas. It's all about shot placement for sure ! 18 min long but interersting !
So what you doing in Shelby ? I worked at the hospital 82-97 as an RT. loved hunting the river bottoms and Sweet grass hills, plus many acres of open ground .
thanks for all the great info here, on what to look for ! Going to be on road trip soon from East Texas down through
hill country then over in the College station area .
here was an interesting graph on this link about lead mines in US
https://thediggings.com/commodities/lead/usa
and this fact :
5. Red Dog Mine
The Red Dog Mine is a surface mine situated in Alaska, United States. Owned by Teck Resources, the greenfield mine produced an estimated 97.5...
2nd Howdy from Texas ! If you can post a few more photos, of the lock, trigger, and muzzle it will be useful for more answers and ideas. As for the story of it being left behind or at you Grand dad's gas station ! thats interesting in itself ! 😲
you might try writing and asking if they may have a source for what your looking for . Wouldnt hurt to try or even Dixie Gunworks.
https://www.gunpartscorp.com/gun-manufacturer/hopkins-allen/muzzleloading-rifles