Look around maybe you can find someone near you that can cast some up for you at a reasonable price. I use 180-200 grain cast GC rolled in Alox in my 30-40 Winchester 95 and they shoot almost as good as any jacketed slug except for a Hornady 160 grain and it shoots better than I can see to hold. Using a cast GC you can drive them at 2,000 fps and better if you wish if the bolt gun is capable of those pressures. I suppose you could slow them down for the sake of saving some powder. Remember to get a case expanding die to flair the mouth of the case with so you don't shave any lead when you seat the slugs, a Lee factory crimp die is also usefull. If you ever get into casting you to will feel some satisfaction and pride in making your own and either shootin or hunting with them is the same. To take game with your handloads using your own slugs is great.
Ineptocracy (in-ep-toc'-Ra-cy) - a system of government where the least capable to lead are elected by the least capable of producing, and where the members of society least likely to sustain themselves or succeed, are rewarded with goods and services paid for by the confiscated wealth of a diminishing number of producers.