Keith,
I think PJ is close to 80 years of age. I don't know a single 80 year old (and I know a few of them) who is actually in the market for a Darne, but, you never know.
But, when I see something posted that strikes me as odd about sliding breech guns, and, especially Darne versions of same, I like to know what the poster is thinking.
I can't for the life of me understand why anyone would specify 1964 or newer on a Darne. So, I asked.
We have far more clarity about sliding breech guns, now, versus when I first started looking, with money in hand, circa 1981 or so.
I like to keep it that way.

Never took a shine to country music, Lonnie. They play a lot of that in Detroit?

Best,
Ted