i hunt where it's thick. I set up on lanes and intersections of lanes in order to have sight windows of yards instead of feet.
First buck with flintlock was big one that popped into visibility (from the wrong direction of course) and I came up with the _rifle_ (42" bbl) shouldered, aimed, cocked, decided he was a "shooter", set, fired-all in 4 or 5 seconds as he was moving right to left and was about to put his tail to me and eliminate a good shot angle. 17 yards was the distance. It happened so fast I had to sit there and recount the scene right away-for that elapsed time estimate. I didn't just make it up years later. I simply won't buy into the notion that a rifle takes "time for a precise shot" when the range is so short. I was sitting on the ground.
Sometimes you get to set up a leisurely shot, and other times there's no time at all and no gun would make the difference. That's hunting.
THICK is where I hunt most of the time because that's where more deer, and more mature deer are found. Going to the longrifle after years and years of shortmoderns, has been no problem whatsoever. I find long guns a pleasure in the deep thick woods.
The next day my rifle takes another buck at ~100 yards (over a small body of water, hence the distance and lack of accurate distance) with my pal at the trigger. The first deer may have been in buckshot range, the second one, clearly not.
Since buckshot has never been legal for large game in my state in my lifetime, I don't have any direct knowledge about the lethality of buckshot, but I do know that #1 is awfully small to my notions. I wouldn't want to set myself up to have to turn down longer shots on good game. That range is going to be highly correlated to ball size.
If I were hunting with a smoothie, it'd have a single ball in it.