56/50 cartridge

[bear tooth billy]

I'm messing with an original Spencer in 56/50 calibre.
Is that legal for main match WAS. Shoot 7 flip the Stabler
switch and single load 3. Not very fast, but this is NCOWS
and I'm not very fast anyways.

                         BTB

[Tascosa Joe]

Cool

[Books OToole]

If the question is:

Is the .56-50 Spencer a legal Main Match Rifle?

The answer is Yes.

The KVC routinely writes Spencer friendly stages. 
ie:  load 7, shoot 7 and reload 7 and shoot again.  Since the Spencer is faster to reload than a Winchester, the Spencer Shooters have a chance to catch up.

Books