Can anyone here confirm that the Lyman "j" style shell holders have a recess for a detent located 5/16 inch under the widest portion of the shell holder, centered on the opening? Is the base, about 5/8 inch in height, 3/4 inch wide? Thanks
Bill
Leaning toward Lachmillers-single detent depression, numbered 2 and 8. One source stated Lyman followed current numbering system with J style holders, I could not find an 8 on the list. Another list showed 2 or 8 for 257 Roberts. The plot thickens.