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When we roll a barrel on the road, rolling friction acts in the direction opposite to the direction of rolling. In case of pulling, kinetic friction acts opposite to the direction in which the barrel moves. The coefficient of rolling friction is almost always less than the coefficient of kinetic friction. So therefore, in layman's terms, rolling friction is less than kinetic friction, therefore less resistance is faced by the barrel while rolling.
pull is way easier
you have to pull this thing connecting to the barrel then pull it open
You pull it off.
depends on the model but normaly there is a stub that you stick the bullet on and you pull the Hammer back and pull the trigger
Stainless is harder.
Pull it through the barrel
First, unscrew the magazine tube cap, located at the end of the forearm. Then pull the action back to about half-way, then you should be able to pull and jiggle the barrel and forearm free. To reassemble, slide the barrel and forearm back on, and pull the action back until the barrel slides into place, then rescrew the magazine tube cap.
Pull off the foregrip by exerting pressure from the front separating the stock from the barrel. Open the shotgun and the barel will separate. Pull down and separate the foregrip from the barrel. It is spring loaded. Open the action and the barrel will separate by lifting it to disengage the tang.
Yes.
It is generally easier to pull a roller other than push it in Physics. The rollers beneath it usually reduce the friction.