R.E.A.L. conicals also come in 380 grain but I find that the 1:48 twist of my .54 caliber Renegades like the 300 grain better. I make both of them actually. And they both fly well, but we hunt with the 300 grain. They sure do a number on deer. If you want to find some to try, check out
http://www.blackjackhill.com/. Black Jack Hill's have a lot of muzzleloader projectiles all casted out of pure lead and their prices are reasonable... to say the least.
My Load with the R.E.A.L. conicals is 90 grains of Goex 2f with a wonder wad.