I am not a fan of using conicals in SMOOTHBORE shotguns when you cannot get the velocity up into super sonic ranges. Broad "meplats" tend to make a less accurate projectile out of a smoothbore, simply because there is NO rifling to spin the bullet, or "slug". Spin that slug, with rifling, and kick up the speed, as occurs with Smokeless powder loads, and the Wide Meplat bullets hit accurately, and hard, even at hundreds of yards( with handgun bullets).
Its next to impossible to use a flat nosed "conical" with any kind of a patch, and that adds other problems, not present when you use a PRB of appropriate diameter. For short range hunting of boars, the RB will do as well as any conical. Remember how WIDE the diameter of the ball is, and how much it weighs.
The problem with Pointed conicals in some MLers is that they are notorious for turning from the line of fire once they enter flesh. Conversely, RBs are famous for staying on the same Line of fire in flesh, and penetrating much further than most conicals.
There is no doubt that using a large meplat conical in a Rifled barrel puts a big " hurt" on the game, whatever you hunt. Its a huge, flat-nosed "drill bit", going through the flesh, while displacing huge amounts of internal organs. It simply does NOT make a good " Knuckle Ball".
I saw a wild boar taken with a T/C .54 Renegade RIFLE, using a conical with a flat nose, and it performed as advertised: ONE SHOT STOP, DRT. The bullet entered the chest, and traveled the length of the hog, ending up in the "Ham" of its right leg. :hmm: The entire body cavity was full of blood, when the boar was field dressed.
A flat nosed conical hitting a target inside 50 feet is probably not going to be so inaccurate, shot from a smoothbore, to miss the hog, but stranger things have happened. Then you have leading in the bore that has to be cleaned out, as it only adds to making the next conical more inaccurate.
Its SIMPLER( as is KEEP IT SIMPLE STUPID= KISS principle)to just used a good PRB in that shotgun for those close night time shots. An Op wad to seal the gases well behind the PRB will help improve the accuracy, and provide a more complete burning of the powder, so that less residue is left in the bore. :hmm: :thumbsup: