You don’t have to squeeze the trigger or perform any other pre-op before disassembly. Just use the magazine base pad to press in the takedown button and proceed per the instructions. Takedown is accomplished without needing special tools. And the 4.94-inch barrel has eight grooves with a twist rate of 1:9. The frame has an integral Picatinny-style accessory rail for a weapon light or laser sight. The polymer grip frame is a bit large for smaller hands, but the finely stippled grip surfaces provide a comfortable and secure hold. There is no magazine disconnect, so the pistol will fire without the magazine inserted if a round is in the chamber. The magazine release is reversible, and the double-stack, steel magazine drops free when released. At a measured 5.5 pounds, my pistol’s trigger pull was smooth, broke cleanly, and reset positively. The Model 1911-style ambidextrous thumb safety and integrated blade trigger safety make firing the pistol almost idiot-proof. Retracting the serrated slide requires a moderate not-too-strong tug. The Secure Action fire-control system ensures the Ruger-57 is both easy and safe to operate. 7 powder under Hornady’s 40-grain V-Max bullet and ignited by Federal’s 100 Small Pistol primer. It consisted of 6.6 grains of Accurate No. Since I was short on factory ammo for testing and evaluating Ruger’s new pistol, I included a handload from Western Powder’s recent manual. Fiocchi and Speer also catalog 5.7x28mm ammo, but I was unable to get any-my local dealer didn’t have any. For this report, I secured FN 40-grain V-Max ammo and Federal American Eagle 40-grain FMJ ammo. Until recently, only FN supplied the ammunition. The most difficult operation is stuffing the magazines (it comes with two) full of the tiny centerfire rounds. I truly appreciate the pistol’s rakish lines, minimal recoil, and extra-high-capacity magazines.Īlthough the Ruger-57 looks bulky, it actually feels lighter than it appears it should, and it is rather nimble to operate. The new Ruger-57 pistol is, according to Ruger, “Fun to shoot! Cool to own!” so it can do double-duty as a plinker, trail gun, and defensive tool. But if you’re also looking for a conversion of caliber in inches to mm, the following chart should have what you’re looking for.The 5.7x28mm cartridge is a high-velocity, low-recoil, bottle-necked round that was developed by Fabrique Nationale Herstal 30 years ago for the FN PS90 personal-defense carbine and the FN Five-seveN semiautomatic pistol. 45 ACP has been measured at 151 dB while. You want to know how powerful each cartridge is. The longer barrel length helps as expanding gas has more opportunity to chill out and create less noise at the muzzle. Cartridgeįor many of you, that’s what you’re looking for. CCI Velocitor achieves its 1,400-fps muzzle velocity through a 24 barrel not something that is really suited for self-defense but probably far more likely to be found. On this chart, you’ll see the name of the cartridge, the caliber measurement for that cartridge, then an approximation of how big of an animal that cartridge could kill (much of which is highly debatable), and how much average energy the cartridge would produce at a typical hunting distance of 100 yards. CCI Velocitor is mainly marketed as a varmint hunting cartridge that sports an average muzzle velocity that is about 200-fps more than your average high-velocity cartridge. 308 Winchester case can’t hold as much gun powder, so when it shoots the projectile, it won’t cause as much damage to the target. With a huge selection of handguns and rifles, Springfield Armory is the premier manufacturer of quality firearms for concealed carry, home defense. 308 Winchester case is much smaller than the case of a. Bullet designs are mostly interchangeable between cartridges of the same caliber. For example, a 180-grain GMX bullet could be loaded and fired out of either cartridge. 300 PRC can shoot the exact same bullet (projectile). 308) and sometimes they use other ways to measure so they can have a nice-sounding name.īoth the. Sometimes they round things off to make a nice marketing name (such as the. Don’t be confused by the names of cartridges. Now that you understand that, things will start to make sense. The word “bullet” only refers to the action projectile that is shot through the barrel and hits the target. A “Cartridge” refers to the entire firing unit: brass case, primer, gun powder, and projectile. Next, we need to understand what exactly a “cartridge” is, and how that differs from a bullet. Larger caliber bullets can cause more damage and generally weigh more however, caliber only describes the bullet size but provides no information as to the cartridge’s speed or power. 308″ means the bullet is physically wider than a bullet such as a. “Caliber” is a measurement in inches of the internal width of a firearm’s barrel, and consequently the width of the bullet. Let’s begin with understanding what caliber actually means. If you’re just getting started in learning about firearms, it can be really complicated to understand all the different calibers and what each cartridge is capable of.
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