Lyman priming posts (TruLine)

[Wayne Smith]

The priming post has a tit on it that limits the sleeve movement, and the sleeve has a window in it that contacts the tit as the spring is compressed.

I have two large primer posts with two different window heights. One is a large window and allows complete primer insertion. The other is a narrow window that does not allow complete primer insertion.

What is the purpose of the one with the narrow window?

[fred2892]

Can't really picture what you're describing, but if it limits primer insertion my guess would be berdan primer???

[dragonrider]

I have twelve of the Lyman punches, 7 large and 5 small, Just measured them and all the large are .313" and the small are .255". Can't comment on why one of your large units is small.

[Pressman]

Wayne off the top of my head I don't know. There is a shotgun primer and you may have one. But that is just a guess at this point.

[Pressman]

Wayne I just checked the collection and found one small punch with a short window. It still works as designed though.
Ken

[Wayne Smith]

Mine is so short that the primer is only about half seated. I had to put the other one in to finish seating and get the case out of the shell holder.