© 2009-2021 LuckyGunner, LLC. I've often described a straight blowback operation as "Unlocked Breech Recoil Operated" and recoil operation as "Locked Breech Delayed Blowback." I actually can’t think of any centerfire handguns designed this century that use a straight blowback action. Buy, Sell, and Trade your Firearms and Gear. Not all air pistols are designed for the same purpose, nor are they built to the same standard. General Board. so I thought I might be able to clear up some of it. They’re BOTH recoil operated and they’re both blown back. Let’s look at what this guy had to say about it. Like all modern firearms, the cycle starts when a firing pin hits the primer which ignites the propellant or powder inside the cartridge case [1]. A lot of different factors contribute to felt recoil but my guess is that recoil-operated guns transfer the recoil force to the shooter’s hand over a longer period of time. On the way back, it picks up a fresh cartridge from the magazine and comes to rest again in the forward position. On firing, the breech-slide recoils and carries the barrel rearward until the rear end of the same, swinging rearward and downward on the link and pivot-pins. Posted March 31, 2020 in Daily News, Pistols, Semi-Auto by Hrachya H with No Comments Tags: 45 ACP, 9mm, Clemens Geiger, Geiger, GRP, GRP200, GRP201, Rollenverschluss, Roller Delayed Blowback. 2. The recoil spring is now compressed and when the slide can’t go any further, the spring forces the slide to start closing. “It’s NOT recoil! Short-recoil vs. blowback. Subscribe to our e-mail newsletter to receive updates. With handguns, blowback is usually synonymous with a more specific type called straight blowback or simple blowback. Sorry, your blog cannot share posts by email. After one more frame [5 & 6], the barrel has dropped down to separate from the slide so the case can eject. Enter your email address to subscribe and receive notifications by email. We all know recoil as the backward movement of a gun when it’s fired. Chris takes a moment to discuss the differnces in how most semi-automatic handguns work. Not all straight blowback pistols work this way, but a lot of them do like the Walther PP series (PP, PPK, PPK/S, etc) and the Russian Makarov. You can bring recoil into play by simply throwing a baseball, but for this discussion, we’ll just stick with guns. Reading Outpost75's pocket pistol posts have gotten me curious. I tried it in a co2 blowback pistol and it couldn't even cycle the slide. The challenge for anyone designing a semi-auto pistol is that the slide must not be allowed to open too far until the bullet is out of the barrel. There have been dozens of different types of designs over the years to make a pistol do this, but probably 99% of semi-automatic pistols are either blowback designs or recoil operated. That pressure forces the bullet out of the case and down the barrel [3], but that pressure is going in all directions and it will take the path of least resistance, so it’s also pushing the case against the slide [4]. Dan Wesson Vigil, put your carry gun on a diet. Recoil operated is different!”. Air Rifles. Perhaps you are referring to blowback vs locked breech pistols. These days, nearly all new pistol designs use a short recoil action, even for smaller calibers. And that tends to be true even when the blowback gun is heavier. And, then a little further down…in case there’s any confusion as to how the barrel moves backward…and there often is. Blowback Operated vs Recoil Operated Pistols What is the difference between blowback operated and recoil operated pistols? The Automag, the Wildey and a few others are gas operated. The only difference is the mechanism that delays opening the breech. Force forward drives the bullet and force backward drives the slide. What is the difference between blowback operated and recoil operated pistols? New Members Sign In Page / MENU . An action-reaction system is comprised of two interacting objects…or reactive masses…and a vectored force between them..actually two forces. This is why most blowback pistols are chambered for small-caliber low pressure cartridges like .380 ACP, .32 ACP, and .22 LR. You can do the same thing with a 9 mm pistol and there are many out there. Some blowback-operated PCCs can have recoil similar to a 5.56 rifle, but more refined models exist. Recoil operated firearms use the energy of recoil to cycle ... while low-pressure pistol cartridges of .380 ACP and smaller generally use the blowback method of operation. August 3, 2019. Gas guns have softer recoil. With a locked breech/recoil operated pistol, you have a barrel and a slide and a cartridge and you have the same series of events that occur when you pull the trigger. They "can" be more prone to fouling. The Lounge. These two forces are of equal magnitude and they occur at the same instant. 1911 Projects. So, let’s start by describing a straight blowback operation. It feels more like a slow push than a quick snap — at least, relative to a blowback gun of the same caliber. Noah_6, Oct 23, 2015. German Geiger GRP Roller Delayed Blowback Pistol. Details in the video below and as always, you can read the full transcript, but this one has a few demos and animations that really help to clarify the concepts here, so I highly recommend watching this time. Thanks Robert 03-01-2020, 04:59 PM #2. Other autoloading systems are: 1. Can you shoot .40 S&W out of your 10mm Auto. Most pistols made today are short recoil operated, also called locked-breech pistols. Blowback Operated vs Recoil Operated Pistols. General Handgun Topics. There seems to be a misunderstanding of the similarities and the differences between these two basic designs. The examples I will be using are a target model Walther P22 with extended and weighted barrel, and a vintage Browning Medalist competition pistol. 35remington . In both types of operation, there are two objects and two forces. We have a barrel and a breechblock/slide. Last week, I mentioned that recoil operated guns usually have less felt recoil than blowback guns of the same size and caliber. A modern pistol caliber carbine offers less recoil than shotguns and rifles but is much easier to handle than a handgun. No mistaking it. This is a more conventional straight blowback gun. The most common gas-powered gun is the gas-blowback, when fired the power behind the recoil that is created by the gas provides an impression of handling a real firearm. Blow forwardwhere the barrel is the only moving component of the weapon that is dragged forward by the friction of the bullet until it leaves the barrel. 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