Hi Hommer

Presume you already have a .416 mould? I have not got into paper patching but found when using cast bullets in my .404 the plain based bullet from the mould I had made did not perform so well. Applying a shoulder to the base and crimping on a 44cal gas check really did make them perform. If you go down the way of getting a mould for either .416 or .404 I wouldn't go plain base.

In saying that, it is easy enough to convert to gas checks if the plain base does not perform. I also like to crimp my cast loads if hunting with them and as Daryl points out, crimps and paper patching won't go well together.

Interested in any trials you do.

Cheers
Eagle