Another Request for Help with Bullet ID

[Mason Jarr]

I'm back again. These eight also came from an Indian Wars fort site (1865-1870). The best one measured .548" base diameter, .976" length and weighs 443gr. The base is solid and there's a small circular rise with a straight line across the center. I hope that shows in the photos.

[vcorps70]

Also Sharps rounds.  Later model with a sold base  T&T Handbook p26, #113.
So far all good CW rounds!

[Mason Jarr]

Also Sharps rounds.  Later model with a sold base  T&T Handbook p26, #113.
So far all good CW rounds!

You are right again! Thanks. I'll have more tomorrow.