Newbie help (open top)

[RWK]

Sorry wrong place.
Mods please delete

Newbie help

I am looking at 1872 open top or an 1860 Richards mason conversion.
1872 open top 45LC when you move to halfcocked open the loading gate move to click you can’t load or unload shell will hit the frame, you must rotate cylinder back.

1860 Richards mason conversion 38sp when you move to halfcocked, open the loading gate move to click you can’t  unload ejector will hit the cylinder  you must rotate cylinder back.

On both these guns the ejector rod was a pain to rotate and line up to eject

Fast forward
A buddy has a 1872 open top 44-40 cylinder lines up on click and loads and unloads fine
Ejector rod runs and is smooth as silk

What gives?

I have also read 45LC is not the best choice for any open top.

Does SASS have a barrel length of 71/2 inch?
Thank so much