Soooo you want to shoot an inline but not pay for sabots right? If you are willing to play with different bullets or cast your own you have options. Most folks shooting an inline are using it for hunting, if that is your intent then forget about the round ball as it is a ballistic nightmare. At 100 yards it only has about 1/3 the velocity it had at the muzzle so the same goes for energy. If your heart is set on shooting a round ball just buy a nice Kentucky or New England rifle made for a round ball. If you really want to stick with an in-line and keep the cost of shooting down, a simple option is to buy just the plastic sabot's and fit them with your choice of bullet, either homemade or store bought. No matter which way you go, shooting a muzzle loader is no longer as cheap as it once was. I used to buy a tube of 1000 caps for less then what I now pay for 100 and black powder was about $5 a pound. When I cast my own balls it was hard to shoot up $2 or $3 a day. Now you can do that in 2 or 3 shots. I still shoot traditional muzzle loaders, cast my own balls, mix my own lube and cut my own patches. My biggest expense is powder and caps, that I can live with.
MAC trained killer