Your semi has a “needs to be cocked” single action safety there pardner!
Uh, I know that. I have been shooting single-shot revolvers for almost 60 years. I have a Ruger .22 single-six from the first year of production and also a Blackhawk .357 from the first year of production in addition to several others. I grew up in the days that you NEVER put six cartridges into a six shooter, always leaving an empty chamber under the hammer ... for safety.