November 4th, 2017

Going Grendel — Erik Cortina Converts AR15 to 6.5 Grendel

6.5 Grendel AccurateShooter.com cartridge Erik Cortina

Here’s an interesting project — using a second-hand barrel to upgrade an AR15. Our friend Erik Cortina decided to make his AR15, originally chambered in 6.8 SPC, into a 6.5 Grendel. Erik acquired a “pre-owned” 6.5-06 match barrel through our Shooters’ Forum. Erik inspected the barrel with a bore-scope and confirmed it was in good shape after the first few inches (past the chamber).

Erik Cortina barrel 6.5 Grendel

The 6.5-06 barrel had more than enough length, so he trimmed off the chamber end, then contoured the barrel to fit his AR15. This is a smart way to upgrade a gun without spending $350 or more on a brand new barrel.

In the first video, Erik explains the process of converting his 6.8 SPC AR15 into a 6.5 Grendel: “I take the upper completely apart and pull barrel off which will be used to take dimensions for new barrel. The new barrel will be turned from an old competition heavy barrel. All the barrel reaming will be done using JGS reamers. I will also use JGS reamers to make a seating and F/L sizing die.”

In the second video, Erik contours the “pre-owned” barrel to fit his AR. He uses an old bolt-action 6.5-06 competition barrel and cuts it to 17″ long and contours it to fit his AR-15. The barrel is turned down on a manual lathe to .750″ outside diameter for the majority of its length in order to fit the gas system barrel block that is made for a .750″ barrel. After contouring, the barrel will be threaded and chambered.

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November 4th, 2017

America’s Favorite Handguns — Pistol Best-Sellers

Best selling gun genius firearms pistol Sig P320 gunbroker

Looking to acquire a handgun for personal protection of home and family? There are countless options on the market. Your buying decision may be simplified by seeing what other consumers have chosen, as revealed by nationwide sales trends. You can now check firearms sales figures using “Gun Genius”, a new data-crunching service of Gunbroker.com. On GunGenius.com you can select any type of firearm (handgun, rifle, shotgun) and see the top sellers for that category.

Here are the five (5) top-selling NEW semi-auto handguns for October 2017:

Best selling gun genius firearms pistol Sig P320 gunbroker

And here are the five (5) top-selling USED semi-auto handguns for October 2017:

Best selling gun genius firearms pistol Sig P320 gunbroker

Gun Genius — How It Works
With GunGenius.com you can look for top sellers by category: semi-auto pistols, revolvers, semi-auto rifles, bolt-action rifles, lever-action rifles, single-shot rifles, semi-auto shotguns, pump shotguns, and more. Select between new guns and used guns for all categories. You can also filter for guns trending up or trending down in recent sales records. Drill down to see detailed product specifications and current prices.

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November 4th, 2017

Fundamentals — Sight Alignment and Trigger Control

Marksmanship Fundamentals iron sights USAMU

This video from the U.S. Army Marksmanship Unit focuses on two key fundamentals of marksmanship: 1) Sight Alignment; and 2) Trigger Squeeze. This video can assist any Service Rifle or metallic sights shooter. The USAMU instructor explains: “You’ve probably heard a lot about fundamentals — Breathe, Relax, Aim, Squeeze… Well that gives a shooter a lot to think about. Here we teach two main firing tasks: 1) align the sights, and 2) squeeze the trigger without moving the rifle. This allows the shooter a much more simplified format.”

The following tips are transcribed from the video:

Task One: Sight Alignment
Sight alignment is the process of putting the tip of the front sight post, the rear aperture, and the shooter’s eyeball all on the same plane. It’s very important to maintain the tip of the front sight post centered in the rear aperture. Just .002″ of deviation can cause a miss at 300 meters. Allow your eye to do its job. While firing, the focus should remain on the tip of the front sight.

Task Two: Trigger Control
Your second firing task is [to] fire the rifle without moving it. This is done through proper trigger control. You’ve probably heard a lot of words about trigger control — “surprise break”, “snatch”, “pull”, “squeeze”… well we teach one thing here: “smooth”. No matter the speed at which I engage the trigger, it’s always going to be smooth. Imagine trying to pull the trigger straight through the rear of the buttstock, holding it to the rear while the gun recoils. It’s important to constantly engage the trigger, never letting your trigger finger disengage from the trigger while firing. This is achieved through natural trigger finger placement.

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