During my quest to find suitable ammunition for my "new" Sharps 1860 pepperbox pistol chambered for .22 short (mentioned previously in this thread), I decided to stay on the safe side, while at the same time try to squeeze as much out of it as possible within safe margins. Why? Because why not. As most modern .22 short ammunition is loaded to a lot higher pressure than the original blackpowder .22 short cartridges, at first I looked at ammunition such as the CCI .22 CB Short, that pushes a 29 grain round nose bullet at 710fps, resulting in a muzzle energy of 32 ft./lbs. I also looked for the RWS R25 which was recommended by Elder999, which pushes the same 29 gr. RN bullet at 560 fps. However, after checking with 5 different gunshops in my area, and several more online, it seems low velocity .22 short ammunition is pretty much impossibe to obtain in Norway. I simply couldn't find anything else than high velocity ammunition in .22 short (Almost exclusively the CCI .22 Short HV), and I feel that that would be pushing it a bit in a 150 year old firearm. However, what I did find for sale was the Sellier & Bellot .22 Flobert CB. This is an 18gr bullet pushed at 853 fps., resulting in a muzzle energy of 29 ft./lbs.!! From a CB Cap! Considering that the Aguila Super Colobri .22LR round(primer only) pushes a 20gr bullet at 500fps, resulting at around 11ft./lbs., I'm a bit unsure about what Sellier & Bellot is actually using as a propellant in their Flobert round, to gain this much velocity. I have allready fired some old Dynamit Nobel european 6mm Flobert rounds (Pictured above next to the pistol. These are identical to the .22 cb cap in dimensions, and was produced in west germany!) from the pistol without any problems, but these have a stated celocity of 180m/s on the box, which turns out at about 590fps in imperial units. As the Sellier & Bellot .22 Flobert CB is rated at a much higher speed, I'm not sure if these are just primer fired, as most CB Caps is, or actually contain some amount of smokeless gunpowder. If they do, is it reasonable to think that they may exceed safe pressures in this firearm, or are we talking about such a miniscule powder load in either case, that they wouldn't in any case pose any threat in a 150 year old firearm with barrels made using the steel tempering methods of that time? Exclaimer: No, I will of course not use this firearm for self defense or concieled carry. I'm just exploring what is possible to do in such an old firemarm.