I'd say one of the most important things you load besides the powder and ball is the "lubed wad". The fouling can affect accuracy within a "six shot string" and the lubed wad helps affect the accuract in a positive way. I figure without the lubed wad on the powder you're not going to get the best from the gun. The lube on the wad needs to be stiff so it doesn't mix with the powder on ball compression and firing. Equal amounts of bees wax and paraffine wax and a lube(crisco,lard,olive oil) works fer me.
I'd say getting the ball to the top of the chamber is a good idea but I dislike the corn meal and the extra hassel measuring it. The "ball at the top of the chamber" is a good idea because the chambers of the italian and other cap&ballers are tapered and drilled irregular. I see it when I ream and find "black" left wherte the reamer didn't touch the side walls of the chamber. The chambers look fine because they are black but run a reamer in there piloted by a mill machine and you see the irregularities. Anyway since the chambers are tapered and actually undersize for the barrels grooves it's a good idea to get the ball to the top of the chamber. it's a better idea ,I thunk, to ream the chambers to at least equal with the barrels groove diameter. I like .001's over the groove diameter for my chambers shooting balls.
I've always found that a good powder is really important in a load chain. That's ovvious.:
I am under the understanding that nothing beats "The Holy Black" if the shooter uses it right. That means dealing with the fouling(lube pills on the powder)and loading correctly....no over compressed loads,the right granulation ect.ect.
I'd recommend trying some of the real powder if you can get it.
Well.....if the gun shoots 4 inch groups at fifty yards with it's undersized chambers(all the Italian guns but a few have under sized chambers) with the load mentioned in the beginning of this thread I'd say that's not bad and may be able to be improved too. That would be nice.
I use the 45gr. FFFg Holy Black in my old Walker with chambers reamed to a good size for the barrel(barrel is .464 groove diameter) and the lube pills on the powder(no separater between the powder and the pill so the powder activates the pill to spread luby stuff ahead of the powders fouling/heat/ect.ect.) and seat the ball with firm but not overly compressed pressure and try to get them all the same compression with the plunger.
I've shot ground hogs on the old farm at 80,20,40,50,30,200,300 300+ yards with that load. The gun shoots as accurate as any cartridge revolver I have. Maybe better. I attribute that accuracy to the "lube pills on the powder and the reamed chambers and a good barrel on the gun and.....the use of the Holy Black Powder.
I can go lubes wads on the powder but not a card on the powder first and I can't go corn meal. I think it compresses when the powder gas hits it like a cushion and can be a little irregular from shot to shot as any cushion in the load chain can be. Cushions are for shotguns. Cornmeal is like a cushion.
I might add...that if the corn meal was removed from the load chain and the accuracy got worse then...I'd put it back in the chamber.
I's say...since the Pietta cap&ballers shoot the cartridge conversions and do it well with 45 conical bullets it's possible to get a good load from a cap&baller cylinder too...if the right amount of powder can be gotten in the chamber with the conical bullet. I'd thunk that maybe the use of FFFFg powder or 777 powder may be the way to get a good coniocal l0ad from a cap&baller. I don't delve into it too much since I figure "balls" are good enough for a cap&baller. My Pietta Remingtons sure seem to like the 45 cal. Long Colt cartridge and the conical bullets in the 1-32 rifling twist. Some say it's 1-30 twist but....
I have to add....that I thunk 50 yards is too far for a max range shooting wild hogs with a cap&baller(even with a 12 inch barrel) and a lead ball(conical would be better I'd say). I'd say half that range would be better and a Walker revolver would be even better with a max charge of powder......unless you rely on a pack of "pit bull terriers" to help hold down the wounded hog so you can get up on it and "coup de grais". Forgive my lack of proficciency with the French language....the English one too.
I can see why the pics of the Walkers targets have a smaller group with the "hollow based" conicals.....the hollow base being the improvement. Too bad the Lee conicals an't be shot from a chamber at least equal in diameter to the groove diameter of the Walker Barrel. I'd thunk the right size chambers and the "heel of the bullet" sized so the heel(and chambers) is at or .001-.002 over the barrels groove diameter would be good to go in a Walker. That would mean a custom mould though to cast the heeled bullet. The heel on the bullet and the oversize front of it sized to .000,.001,.002 by the chambers to be within the barrels groove diameter or a coupla .001's over it.
I guess I'm trying to say......the chambers size the conical and the heel and front of the bullet are sized to be the same which...eliminates the "heel" upon loading the conical in the chamber. The heel has a negative affect on accuracy...even if it is small at times it's(the negative affect on accuracy) still there if the heel is thee as the bullet leaves the barrel.