8300 PSI TOO MUCH FOR 10 GA TWIST

[Richard Flanders]

Those are Shermans notes, not mine. Can't remember how/where I got them.

[10ga Hammer]

Richard, If I'm not mistaken those "NOTES" accompany Sherman Bells Excell spread sheet for 2 7/8, 10ga reloading data.

[J. A. EARLY]

Richard,

Thanks. I had downloaded a .pdf file from this forum a while back but only three pages of reloads with no notes. I don't have access to that particular article, however last year I did read the article in a friend's DGJ where they finally were able to blow the Damascus barrels of a Parker at the breech face with a tremendous overload, but only after many progressions in increasing the charges.

I am looking for very low pressure loads to be safe. These NH barrels are the thickest of any gun I have, although they are Twist. Twice as thick as one of my 20s. I am going to find a 7000 psi or less load to live with.