Which question first? Then which weapon?
I believe that the marlin model 783 holds 7 rounds.
The marlin model 990 was made to hold 18 rounds in its tube magazine.
The Marlin model 1894 rifle in 32-20 Win.should hold 10 rounds of ammo.If this is a original model made from 1894-1934.
Get the Alpha Trooper, it has 18 rounds. The Barrel Break only has two rounds and has a slow reloading time.
Yes. The Marlin model 556 is a bolt action shotgun. It has a detachable magazine which holds two rounds and one round in the pipe for a total of three rounds. It is able to shoot 3 inch ammunition.
My 1976 model holds 12 rounds of 22 mag. The 783 has a tubular mag. There were other models (782) with box mags that held 7 rounds of 22 mag.
Depends, on if you are loading short, long or long rifle.
Need a DETAILED DESCRIPTION OF ALL MARKINGS and the entire weapon to include barrel length, stock, sights, number of rounds held, barrel configuration, type of action. etc..
It's done by time, not by number of rounds. If you're firing "slow fire"--less than 25 rounds per minute--change it every hour. If you're firing "rapid fire"--up to 200 rounds per minute--change it every half hour. And if the barrel starts to change color--it will first glow dull red, then brighter red and finally orange--change it right away. (If it DOES glow orange, the barrel is ruined and you'll probably have to pay for it unless you were in the middle of a firefight when it happened.)
Every 150 to 200 rounds.
Revolver: the hammer locking back or dry firing(pulling the trigger with an empty cylinder) which is the hammer striking the back of the firing pin. Auto pistol: the slide mechanism moving rounds around. when you pull the slide back the back of the barrel tips down to easier accept the next round. the spent cartridge is ejected by the slide as it moves backwards and the next round in the magazine is pushed into the barrel when the slide resets.
Impossible to answer without knowing if it is a revolver, semi-auto, shotgun, rifle; caliber, barrel length, number of rounds held, finish, etc..