1 gallon of water weighs 8.345404 pounds, therefore, 20 gallons weighs 166.90808 pounds. As this is trying to get through a gap of 3.14159265 square inches (Pi times the 1 inch radius squared), then the pressure in pounds per square inch is 166.90808 pounds divided by 3.14159265, which equals 53.128492.
There is an opening at the bottom of the barrel above where the gas enters. There will be a valve or collar that changes the size of the opening.
Lees
There was only one mouldy apple at the bottom of the barrel!
Bore is the inside diameter of the barrel. depending on the nation, it may be measured from the bottom on one groove to the bottom of the opposite groove, or from the top of one land to the top of the opposite land (raised part of the rifling). Measurements can be to one thousandth of an inch. Thus a rifle with a .308 bore is .308 thousandths of an inch wide inside the barrel.
Bottom. Not your bum, rather the bottom of a barrel, or the bottom of the sea. ;)
Diameter is 28 inches
Lees
it is the bottom part of the back near the bum
No. The Stoeger 3000 has no barrel selector and always fires bottom barrel first.
yes
Barrel - as in water butt or water barrel.
eyepiece