The Lee Hand Priming Tools (New Auto Prime, Ergo Prime and Auto Bench Prime) use unique Shell Holders made specifically for it. The numbers correspond with those on the Universal Shell holders, made for use in single stage presses. However, they differ in the sense that the hand priming tool shell holders do not have a bottom lug that is present on the Universal holders. This was not done to sell more shell holders, it was done to prevent the tool from having to pass a primer through the additional distance of the lug. This would have resulted in a less accurate tool and one that would have required a much greater distance for the lever to travel to seat a primer.
While some people purchase the proper hand priming tool shell holder when they load a different caliber, we do offer a set of 11 that contains the shell holders that fit over 115 calibers. Included shell holder numbers: 1-5, 7-11, and 19
Please keep in mind that if you have the original Auto Prime and you would like to upgrade to the Auto Prime XR, Ergo Prime or the new Bench Prime, the shell holders are compatible.
