John;
You do not really state your intended use of the hammer gun. If for "Targrt" use then any type which is sound would serve fine as it should not be loaded until in firing position. My next statements are controversial & may be disagreed with by some. However, even though I have used other types on occasion, I personally feel the safest ones to carry afield are those having re-bounding locks. My preferred method of carry is then to carry the gun; Loaded, Closed & Bolted, Hammers down in the rebound safety position, to be cocked upon bringing gun to shoulder for firing.


Miller/TN
I Didn't Say Everything I Said, Yogi Berra