I would like to post a reply about the 1851 Navy conversion that is pictured . The pistol was owned by Stembridge Gun Rentals & was rented to Paramount Studios for Michael Landon's use in 1959. It is identified by serial number on Stembridge rental sheets & has been documented by Syd Stembridge, the current owner of SGR, as having been used by Michael Landon. I know this, because I own the pistol. I had paperwork identifying this pistol in hand for around 4 years before I found this pistol, & the pistol did not come from the same source as the paperwork. At some point after Bonanza, 2 inches was cut off of the barrel & the pistol was used in The Outlaw Josey Wales. It was carried by Clint Eastwood in his shoulder holster. Again, listed by serial # on Josey Wales paperwork from Stembridge & documented by Syd Stembridge to Eastwoods use. After that movie, the loading ram was removed & an ejector housing installed. And by the way, it does have a loading gate.