The club listed by the Perfesser shoots in south San Antonio.  The other clubs nearby are the Tejas Caballeros in Blanco, and the Texican Rangers between Comfort and Fredericksburg.  Those two are both about an hour away.  The Green Mountain Regulators are a little further north near Marble Falls and the Texas Riviera Pistoleros are a little further south near George West.  And the Texas Historical Shooting Society is about that far east near Colombus. 

I've never used the saddle ring on the different carbines, and I've never seen them used on actual carrying vis-a-viz riding and hunting- not to say other folks don't have different experience.  I always dismounted if I was going to take a rifle shot, so the shorter barrels could be a little handier drawing out of the scabbard, but the best luck I had was with either my old 1894 (26" barrel) or my model 71 with the 24" barrel.  I've taken one or two shots with a pistol off a horse, but the ensuing rodeo is not worth the fuss.  Now, my experience may be far different from most folks that have a lot more experience than I do

WOWZER is right!!

Must have gone to someone with deep pockets if they were $2,500.00 per box!

Check the website. It was $25.00 per box.
Amazing how misinformation gets out there and accepted as gospel.
wM1

if'n the stove is still hot...

Major, makes jalapenos stuffed the cream cheese and wrapped in bacon...

The MagTech 2-7/16" shells should duplicate the 2,5" shells that the 1887 was constructed for pretty closely.
Back in the day the 2,5" all-brass shells would have been roll crimped too.

I have an early-production Norinco 1887 chambered in 12/70.  I use un-cut, un-crimped MagTech all-brass shells, but do not load them from the magazine; I put one in the chamber and one down on the cartridge lift.  I have done some smoothing of rough edges inside the receiver / chamber area, and this set-up has served me well for years in CAS-mainmatch.

I will have to do some more experimenting with paper or plastic shells in order to make it feed six shells from the magazine for Wild Bunch.