Designing the 2-diameter paper patch bullet.

[Distant Thunder]

I've been shooting a 2-diameter bullet in my .40-65 for just over a year now and it works very well for me. I would think if I looked I'd be able find one that isn't too banged up. Because that bullet has just a rather sharp step between the diameters it is probably still visible, but I would think that the bore diameter would bump up to pretty much the same diameter as the groove diameter section. That should be something about .403 or .404". The patches come out pretty cut thru to the front edge.

If I think of it I'll look around my 200 yard impact area and see if I can find one, but that wont happen for a week or so. I leave for Lodi tomorrow and I'm in a deep and growing hole at my shop and I need to get things straighten out there before much more time slips by.