Aw, Shucks! The Casting Of Bullets, in Handloader's Manual, 1943

[Elric]

I finally found it again, the issue was the PDF I had was not OCRd.. Look in the Internet Archive, text, and choose the PDF with Text format. The PDF only version is just images, not recognized.

HANDLOADER’S MANUAL - A Treatise on Modem Cartridge Components and their Assembly by the Individual Shooter into accurate Ammunition to best suit his various purposes
By Earl Naramore, date is 1937, might be the 1943 edition?

Small Arms Technical Publishing Company
Plantersville, South Carolina
U. S. A.

Page 189-190

"The fit of the dowel pins on one block into the holes in the other block governs the alignment of the two halves of the cavity. When used properly there is very little wear on the holes or the pins but if the mould is yanked open and slammed shut, the holes will become burred at the edges and enlarged, which will throw the two halves of the block out of alignment and make it impossible to get perfect bullets from the mould. This looseness in the two halves of the block is known as “shuck” and can usually only be eliminated by returning the mould to the factory, having the holes reamed out larger and new dowel pins fitted."

 

[Brad]

Send it back?
Lyman would likely replace the dowel pins with some that make the mould cast undersized on the bearing surfaces.

Shucks is what you say when you realize they made it worse.

 

[RicinYakima]

Major Naramore, number two in command of Frankfort Arsenal, probably got better service from Lyman than folks like you and me.

 

[Brad]

Bet he did. That was the Lyman of old, not the current Lyman.