Animation of a 1911 pistol's operation

A cutaway view of the inner workings of a 1911 pistol.

Obtained from http://www.m1911.org/STI1911animation2.htm

Category:

Sports

Tags:

• 1911
• pistol

[tellyman6688500]

8 round mag? what? dont the 1911 hold only seven? what you cant do with seven rounds you cant do anyway?

[DarwinTe]

@tellyman6688500 8 round mags are very common. The extend down a little and have a plastic base on them. I only own one 7 round magazine.

[tellyman6688500]

@DarwinTe i see. didnt think an original 1911 would have 8 rounds in the magazine.

[DarwinTe]

@tellyman6688500 No, they didn't. The original magazine were 7 rounds and the bottom was flush with the bottom of the frame. I think the extended magazines were designed to make it easier to change magazines quickly, like in competitions, and the extra round was just a bonus. I may be wrong, but that is my opinion of it.

[OlUncleJoe]

It was actually produced in 1908. Then it was tested and improved and finally adopted as a US Army side arm in 1911.

[RandomPoolGuy84]

I carry a 1911 for duty and personal carry. My boss hates single action and believes that the double action gives you more time to make sure that you do want to shoot. I believe however, once you take the safty off, you mind is made up.

[snowface27]

@mutelatedLEMON

This all happens when the ejection port is open. A very short time radius to do all this.

I hope you understood :)

I also have a video about it ;)

[snowface27]

@mutelatedLEMON

on the magazine follower you have a piece on the left side that extends but still is flush with the mag body. On the end of the slide catch.. (the side you push your thumb on)

There is a piece that goes in the frame of the frame. So after the last round, the extended piece of the mag comes against the inward extension of the slide catch. The spring of the mag pushes it up. Therefor the slide catch is pushed up and the slide catch engages in the slot of the slide. This all happe

[InfidelArmee]

@bf2lover42, There is approximately .182" of motion of the barrel and slide, relative to the grip frame, before the bullet leaves the bore. Assuming the machine is a 1911A1 launching 230gr. bullets. There is better than 3000lbs. of thrust against the bullet base and the breechface of the slide, at average pressure. The slide mass and spring tension don't represent significant resistance to that much thrust. Their motions relative to one another, are a proportionality equation.

[bf2lover42]

@InfidelArmee The problem is that the second law of motion goes both ways.

The spring tension and the slide mass counter the recoil operation. If you see a slow-mo video of the 1911 being fired, the bullet will leave the barrel before noticeable movement occurs. Of course that there is movement, but it's really hard to see.

[heartline12]

@InfidelArmee the slide can be moving rewards as the bullet is leaving the barrel in fact with most ammunition it does that why theres locking lugs on the 1911 and why match grade barrels are made. however i have seen a slow motion video of a most likely undercharged round where you can see the bullet leaving the chamber before the slide moved. i can try finding it for you

[InfidelArmee]

@heartline12, There may be animations like that, but in real life, the barrel and slide begin moving rearward the moment gas starts moving forward from the primer. Physical Science is interesting. Especially the Laws of Motion.

[PennaPlanum]

I'm confused as to the 7 rounds v. the 8 rounds. Is that "one better"? Or is the 7 round mag one less?

[PennaPlanum]

@DarwinTe Oh. But I didn't think an original 1911 was supposed to have 8 round magazines. (lets see how many times he answers this same inane question - must have patience of a monk)

[mutelatedLEMON]

its the slide stop that confusis me

[tellyman6688500]

@DarwinTe that could be for competitions yes. with eight rounds they dont need to cock the gun again after a new mag was inserted too.