I spoke to owner of RST years ago...He said they don't load anything over 8000PSI

When these loads were available, of course 3 1/2" ten gauge guns were used with these loads, but there were heavy 2 7/8" guns available with fluid steel barrels from Ithaca, Parker, L.C. Smith, Francotte, and other European and British makers. Until a few years before the 1 5/8 ounce tens were discontinued, 1 1/4 ounce loads were available. When these two loads were discontinued, there was no factory load suitable for non-magnum ten gauge guns. The gun show business in old 1 5/8 ounce ten gauge loads is still very brisk and there doesn't seem to be any sign that they will run out soon.

I'll bet Charlie has shot and will shoot them in a 10 Parker!

They wouldn't get fed to my grade 2 damascus hammer gun. It might survive them, but what would be the point? And the stock might NOT survive them.

Speaking of the old guy who will shoot anything, I remember one who my Daddy would warn about it and later we ran into him and he was missing his left thumb. Seems he killed the rabbit but also his left thumb when the chamber exploded! And the bailing wire he wrapped around the wrist of that old gun didn't help either.
Please just stay with RST or something you know is safe. We need all you guys, if nothing else you keep up entertained on this forum.

I have guns that would be safe to fire with the ten gauge 1 5/8 ounce Super-X or Remington loads, but what would I use them for? Pheasants, either pointed or tower thrown, or turkeys are possibilities, but clay targets are better addressed with handloads. I think the availability of the heavy 1 5/8 ounce 2 7/8" factory loads will continue for decades.

ja i have shot the 1 5/8 ounce loads in most of my heavy tens 3 frames for 30 years and a lefever of my dads for 60 plus years...was a good load on ducks and turkeys....never know barrel or stock damage to any of these guns....it is something each fellow has to deal with the shooting of these shells in his gun....charlie