Hi, I am new to the MlF. I am looking to purchase my first flint lock rifle. I am thinking of a 36 or 40 caliber to be used for plinking and small game like rabbits or perhaps coyote. 45 , 50 or 54 for deer or possibly Elk. What do you recommend? What are the advantages and disadvantages of the various calibers?
So you've gotten a lot of very good answers. The problem is, the answers will differ depending on where you are in the world, even if you're only doing one type of hunting.
For me, IF I could only get one muzzleloader, and that was a flintlock..., where I live and hunt, and where I'm likely to do so, I'd get a 12 gauge smoothbore with an extra barrel in .54, or larger. It would allow small game hunting, upland birds, some waterfowl, and turkey, and with a round ball is going to work on everything in the deer family up to moose (though I likely would switch back to the 12 gauge barrel and a round ball for the moose).
But I'm not limited to only one gun. I am limited in caliber for deer in my state with a .40 caliber minimum when it comes to muzzleloaders.
So..., I have a .40 flintlock rifle. With a patched round ball and 30 grains it's fine on squirrels and rabbits, and with deer at the close range that I get my shots at, BUT I also scored some .40 conicals, so could go for deer out at 100 yards and for coyotes, because most .40 caliber barrels like mine are rifled 1:48 twist with groove depth that will work with a conical.
BUT some states have oddly worded regs that you need to check, and I think at one time Louisiana (iirc) had regs with an upper limit for small game set at under .40, and a minimum for deer set at .45.., which meant in that state .40 caliber rifles and some of the early factory production rifles which were .44 caliber, couldn't be used for hunting of anything.
I have a 20 gauge smoothbore flinter for birds and squirrels and rabbits. Mostly birds.
I have a .54 rifled flintlock for deer and other large game, plus a couple muskets that are much larger smoothbores, though I haven't gone hunting with those..., yet.
As long as you're obeying hunting regs, AND what you're using is accurate to the distances that you're going to shoot, there is really no single answer. Everything has limits and problems to solve.
For example my "one gun" solution would "work" if all that I had was my 11 gauge musket, just using birdshot or ball as the need arose..., but for something like a moose or a coyote, I'd need to be close, and that could be tough to accomplish on a moose and near impossible on the coyote. Pronghorns, if I lived out West would be a different problem, too. If I was in big bear/cougar country or overseas where an apex predator might choose me to vary its diet, or where the big game is also called "dangerous game"..., I'd be looking at a SxS caplock, and probably some sort of backup pistol OR a guide who was also armed.
So ... there's no single answer.
LD