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Leatherwood Hi-Lux

All About LER (Long Eye Relief) Scopes

All About LER (Long Eye Relief) Scopes

A few scopes are built to sit much farther away. They have a much longer eye relief than is standard. For this very simple reason, they're called long eye relief scopes. Sometimes, you'll see that written as LER.
  • December 11, 2023
  • 5 min read
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The Barrel

The Barrel

The barrel is the place where the bullet builds up speed, starts to spin, and gets going on the right path. Once the primer is struck, the powder burns and heats, the reaction speeding up as more powder heats up yet more powder and sets it off too. This expanding mass of hot air and burning propellant shoves the bullet down the barrel, burning more as it goes.
  • October 25, 2023
  • 6 min read
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Where the Action Is

Where the Action Is

In a nutshell; the action is the portion of the rifle that performs the action of firing the round and ejecting the cartridge. The action is the mechanical structure responsible for loading a cartridge into the chamber, firing, and ejecting a cartridge. Let’s just say - this is literally where the action happens. Make all the puns you want.
  • October 18, 2023
  • 7 min read
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Powder

Powder

Powder is the stuff that really sends the bullet flying. Once the primer sets off the reaction, powder burns. As the powder burns, the pressure and temperature in the chamber and the barrel skyrocket. The rising temperature and pressure cause more powder to burn, speeding up the process until it completes.
  • October 11, 2023
  • 5 min read
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What is a Rimfire Round?

What is a Rimfire Round?

Rimfire cases have the priming compound built into the case - specifically, around the inside of the rim. The firing pin of a rimfire rifle hits the rim of the case instead of the center. They do not have a separate priming cap at the middle of the head.
  • October 04, 2023
  • 2 min read
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The Primer

The Primer

The primer is the little swab of explosive material that sets off the rest of the propellant. To be more specific - in a centerfire cartridge, the primer is a small metal cap with a tiny amount of explosive compound inside, set into the primer pocket at the base of the case (the case head).
  • September 27, 2023
  • 5 min read
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Shapely Bullets

Shapely Bullets

Here are common classifications of bullets and what they may be used for. This is a list of some of the more common terms you may come across, though more seem to appear every day. Some bullets are differentiated by shape, some by material.
  • September 20, 2023
  • 5 min read
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Ballistic Coefficients

Ballistic Coefficients

One term you’ll hear thrown around quite often is BC. BC is the Ballistic Coefficient, a rather important number in the world of bullet flight efficiency. A higher BC means a bullet will retain velocity better - have less negative acceleration, less drag from the air resistance - in similar conditions to a low BC bullet.
  • September 13, 2023
  • 7 min read
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Bullet Materials

Bullet Materials

Most bullets are made almost entirely of lead. Lead has been the top choice in bullets for hundreds of years now, and it’s all due to a few simple reasons - it’s very dense, it’s easy to cast, and it’s fairly malleable. 
  • September 06, 2023
  • 6 min read
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A Bullet In Your Caliber

A Bullet In Your Caliber

The bullet is the chunk of metal that actually exits the rifle’s muzzle, provided everything works the way it should. Ideally, it’ll be going at a tremendous speed with a good amount of spin. Think of the bullet as a high-speed football. 
  • August 30, 2023
  • 5 min read
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The Rim

The Rim

The rim protrudes around the circumference of the head of the case, and is not technically a separate component of the case. I list it separately here because of the unique functions it provides. It is where the rifle’s extractor grabs the spent case to pull it from the chamber.
  • June 21, 2023
  • 3 min read
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Straight-Wall vs Bottleneck

Straight-Wall vs Bottleneck

Cases come in many sizes, but only two general shapes: bottlenecked and straight walled.
  • June 14, 2023
  • 2 min read
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