where to acquire a belted bullet mold

[Yellowstone]

I have recently purchased a percussion Cape Gun or Cape Rifle as they're sometimes known. It is 12 bore on the right, and .50 caliber on the left. The rifled bore is two groove and I measure a 31" twist (three times). The barrels arre 31.5" long.
I have on order a belted round ball ball per my dimensions from Jeff Tanner, Great Britain. However, I think the twist was designed for a conical bullet.
Anyone have an idea where I can get a winged conical bullet mold made? I believe, according to Greenhill's formula the bullet should be right at 1" in length, twice the .490 RB.
Any ideas :idunno:

 

[BrownBear]

Jeff Tanner has them.

 

[Yellowstone]

Jeff is building a belted round ball mould (English writing :wink: ) but he doesn't cut a conical bullet.
I have a round ball mould, er a mold on the way.

The wings on this two groove barrel are .545, bore is .490, and width of grooves is .122, serious cape gun I reckon.

 

[nkbj]

You could probably have a 45-70 rifle mold altered for a fair price, in this manner.
1st step, grind the mold cavity to produce the bore diameter needed, leaving the round nose.
2nd step, grind the wings onto each block.

You might be surprised how low cost such operations are. Suggest you contact Erik at www.hollowpointmold.com for ideas. He's a sharp fellow and does excellent precision work.

 

[Yellowstone]

By golly, there's an idea............and I like it. You could also do the same thing with a paper patch mold. Either way, ground out to .490 with some wings on it should work. I'll make the contact, and thanks.