Yeah, I DO get it, new fun for the new gun... and maybe some challenges, too, which reminded me of a story back from the '80's when I did a lot of competitive shooting.
There was a guy here in Wyoming I met at a shoot back then who told me he shot an antelope with his little replica cannon, which I believe had something like a .75" bore (maybe bigger, don't remember). He told me it was a project he always wanted to do, and being the good shot, hunter and meticulous fellow that he was, he did his scouting for his goat and actually spent enough time at a water hole where most every morning, at the same time, this buck antelope would show up to drink. After all his diligent work, he set up his "gun," strategically placed for the goat and the anticipated shot, and waited for it all to come together. He had made a good blind for his "hide" and however he set up his fuse or powder train for the shot, I don't remember what he said about that, though it must've been something pretty quick for the situation. Well, he waited, it all came together, and he got the buck at the waterhole. When he first told me the story, I fully thought it was B.S., but there were enough folks who heard the story, too, and could pretty much confirm it. I'll say this, I did know the guy well enough to certainly believe that he really did do it.
I'll bet a blunderbuss could do the same thing if one did the diligence, and had the time to do it! I'd bet a whitetail might/could be a pretty good challenge for your new project (if legal to use where you are). Probably a one shot deal there, as I see there's no provisional hole for a ramrod. (?)
Have fun with the new gun!