I learned a new word 'TERZEROL' .. that according to Wikipedia means a small muzzle-loading pistol, offered as an 'alternative' to holster or saddle pistols. These are now known as "pocket" or "muff" pistols - but used sometimes be referred to as "Vinyard guns" employed to fire blanks as bird scarers ..
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Testing power levels & velocity of black powder loads will yield a range of answers due to different strength propellants, loads and the ball mass - but here is a link to some extensive testing:
https://poconoshooting.com/blackpowderballistics.html
60 foot/pounds of energy equals 80 joules (metric)
I'm writing that (above) because British military testing, states that a projectile of this power level will consistantly disable a combatant.
The normal weight of a 22lr is 40 grains. Virtually every brand of 22lr will send this bullet at about the speed of sound, 1200 ft/second, with a kinetic energy of about 120 foot pounds, or162 Joules.
Many .22" rimfire SHORTS also achieve that 60 ft/lbs. - a .22Short launches a 29-grain (1.9 g) bullet at 1,045 feet per second (319 m/s) with 70 ft·lbf (95 J) of energy from a 22 in (559 mm) rifle barrel and can penetrate 2 inches (51 mm) of soft pine board.
In the real (U S) world of hand aimed and carried weapons - there truly is no such thing as knockdown power or "Stopping Power' despite some beliefs .. there is however always a need for accurate bullet placement & sufficient penetration as above. - Please forget "Spray & Pray".
There are some who - immediately they are winged by a shot will think that they are 'DEAD' and therefor fall to the floor and expect to die. - Others, such as Moro warriors, refused to die even though mortally wounded ..
Naturally this topic is confused by these variables .. there are those who will maintain that their target, hit by their powerful 44 Magnum will be more dead than a corpse brought to market by a bullet from a .22 "mouse gun"
Now - when focused on my current passion of small screw barrel pocket pistols - it is clear that the main factor governing velocity & 'power' would be the volume of the Powder Chamber cut under the nipple or flash pan. These vary hugely in diameter AND in length from the smallest at around 3mm dia, up to 6mm and deeply bored. - The antique propellant would also vary in it's quality ..
Every antique gun I have - I find this chamber to be RUSTY with cavities eroded into the walls from inadequate CLEANING after firing in days gone by. It is fortunate that this design puts plenty of metal into the surrounding body.
Note: Vascular Heart Disease is pretty well the opposite of that erosion and enlargement we get in our muzzleloader barrel bores & chambers .. it being the build-up of fatty dirty grease in the body's essential blood tubes rather than the wearing away of them. - Now that is what I'd call STOPPING POWER .. SO - Due to "terrible vascular heart disease - inoperable" (a written quote from my Cardiologist-Consultant Sally, to my GP) - I now try to avoid ingesting any more corpses, - chemically preserved body parts, - and mammalian lactation calf-fattening fluids intended for rapid weight gain .. known commercially as "meat, - processed meats, & dairy products". ________________
Antique Muzzle Loading Propellant: This is historically made as a mixture of three powdered substances 75:13:12 (or 75:15:10) .. This mix was known as GUNPOWDER.
1/- Food Preservation Salt: Potassium Nitrate KNO3 aka Saltpetre - Oxidizer
2/- Charcoal: Fuel - Carbon C is a porous form of carbon made by 'cooking' various sources of wood.
3/- Sulfur: Traditionally used as a fertilizer due it's antibacterial properties. When included as part of the Antique Propellant mix - sulfur lowers the temperature of ignition.
Watch & LISTEN TO Jake .. he brews his own powder / propellant and uses it:
Marty K.
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