No, we are not limited to roundball. In Wisconsin we can shoot about anything we want for projectiles. I choose to shoot a roundball because I have had such good luck shooting them. As for pass through, last year I shot a doe at 52 yards according to my range finder. It hit her neck, passed through there, entered the chest cavity, traveled all the way through her, exited and broke her rear leg. From there I have no idea where it went. It was a .54 caliber with 90 grains of Goex out of a flintlock.

Now in my smoothbore, I have not had the opportunity yet to shoot a deer with it.