JOe brings up an important point. I have a couple of Savage 220 .410s and one 20ga I'd been thinking about trying out the TSS 9s in. I'd hate to ruin a barrel.

I'm sure that with (steel shot) shot collars the TSS would be no more likely to scratch the barrel than steel shot loads. I wonder though since all my singles are full choked whether anyone has experienced any problem with TSS #9s bridging and causing a ring bulge at the muzzle?...Geo

P.S.: Getting back to Coosa's original thoughts about barrel convergence, I also have an old Ithaca Lefever nitro special in 3" .410. I wonder how pixie dust will perform in it?

Last edited by Geo. Newbern; 05/15/13 04:05 PM. Reason: added postscript