Designing the 2-diameter paper patch bullet.

[Don McDowell]

Jim I wish I had the talent to cut moulds as I would really like to be able to do more experimenting with the dual diameters.
Been messing with them for about 10 years or so, and it seems like to date, if the base diameter is bore diameter to no more than .003 under bore, and a thinner paper is used they surely do serve well. Altho that 45 cal bullet I gave you at Lodi works very well in 9 lb cotton paper from paper mill in the CPA 45-90, other rifles seem to shoot 8 lb better (Seth Cole 55w) with less unexplained dirt diggers.
The dual diameter 40 bullet I had Brooks build is .400 on the base, due to the rifle it's mostly intended to be used in shoots a .400 diameter straight sided bullet the most consistent. Hopefully sometime in the next couple of weeks I'll find out if my plagiarizing of your bullet will pay off or not.