The 12 gauge 2 3/4″ load has a MV of 1550 fps and ME of 2935 ft. lbs. The 100 yard figures are 1145 fps and 1600 ft. lbs. Energy (ft.-lbs.) These are air guns with a maximum muzzle velocity of 152.4 metres or 500 feet per second and/or a maximum muzzle energy of 5.7 joules or 4.2 foot-pounds. Firearms groups say new rules ban 10 and 12-gauge shotguns, Minister says that’s not true ... a projectile with a muzzle energy greater than 10,000 joules. One Joule is 1 Newton Metre, ie the work done or energy transfered to an object when a one Newton force acts on it over one metre. Now, check out this 12 Gauge shell with a 1 oz slug and 1,560 fps muzzle velocity. The powder loads below do not necessarily represent safe loads. That criteria stated that firearms “with a bore 20mm or greater” and/or those “capable of discharging a projectile with a muzzle energy greater than 10,000 Joules” are now banned. All 12 gauge shotguns able to chamber a 3 1/2" shot shell, including ~$100 walmart smoothbore specials, are capable of firing this round. (437.5 grain) 2 3/4" Foster shotgun slug (12 gauge) achieves a velocity of approximately 1,560 fps with a muzzle energy of 2,363 ft. lbs. Maybe someone have a book of it or can show a web-link to see tables..? of recoil energy, while an 8-pound 12 gauge loaded with 1-ounce slugs produces 16.7 ft.-lbs. For example, what is the energy of 4,8,10,12,16,20...and other gauges in joules..? v^2
Barrel length may vary depending upon the gauge of the shotgun.
Maybe someone have a book of it or can show a web-link to see tables..?
The heavier the bullet and the faster it moves, the higher its muzzle energy. 100 yds. This number can be used to get a rough idea of a round’s destructive potential. Muzzle: 50 yds. The 3" slugs travel at around 1,760 fps with a muzzle energy 3,105 ft-lbs. All firearms "capable of discharging a projectile with a muzzle energy greater than 10,000 Joules" are prohibited devices via OiC. The .22LR bullet weighs about 3 grams (a tenth of an ounce) and has a muzzle velocity of 335 meters per second (about 750 mph) which works out to 168 joules. KE = 0.5 .
Here is a nice 12 Gauge shell with ⅞ oz of shot and a 1,200 fps muzzle velocity. Use this online calculator and find the muzzle energy in foot pounds and joules.
In contrast, a.30-06 bullet weighing 150 grains at a velocity of 2,600 fps achieves an energy of 2,250 ft-lbs. The 12 gauge generates a lot less recoil than the 10 gauge, and 2¾-inch ammo has more than enough power for defense.
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It would be very interesting. Hence once the BB hit your target, 1.34 Joules will be transfered to the target. 3. Muzzle energy is also the same energy as kinetic energy (Ek), recoil energy, down range energy or impact energy. This Reddit user proved a modified 12-gauge shotgun is “capable of discharging a projectile with a muzzle energy greater than 10 000 joules.” While we strongly advise against attempting this with your 12-gauge shotgun, this video proves a 12-gauge shotgun is “capable of,” potentially turning 12-gauge shotguns into Prohibited firearms under SOR/2020-96. In fact, Federal’s nine-pellet Personal Defense 00 buckshot load delivers 1,575 foot-pounds of energy (fpe) at the muzzle, which is about three times the energy … A 12 gauge gun will be tested with a 30’ barrel and a 20 gauge gun will be tested with a 26” barrel.
There is historic evidence that 19th century revolver were often loaded to maximum capacity and they did … Muzzle energy will be higher when bullet is heavier and moves out faster from the muzzle. (oz.)