AR-15s are pretty much pinned together. While a staple for many AR-15s, roll pins are not hard to work with, but a misstep could be catastrophic enough to permanently damage your AR-15. Here’s how to perform the essential construction operations associated with roll pins—the professional way.
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When something goes wrong and the rifle won’t fire, the first question should always be, “What changed?” Before answering that, we have to determine—or at least I determine—whether we’re talking about a “fresh” rifle going through its shakedown period, or a (previously) trusted gun that’s suddenly decided to stop running. If it’s the first scenario, there’s a longer list of possibilities that include original parts, conditions, and installation quality. This article will focus on the previously-functioning rifle that’s taken a vacation from operation.
Part of the process of developing the load we’re seeking is learning how to safely set a cap on its pressure. Most of us don’t have pressure-testing equipment, so we rely on measurements and observation to know when we’re at the limit. Here are a few ideas on how to proceed in load testing to find the safe maximum velocity, and keep it safe.
Don’t short-change a short gun! When you spec a carbine, think about shooting it! Simple? Yes. But don’t adapt to the carbine; make it adapt to you. Here are a few thoughts on how to get the most utility from your carbine.
I get a lot of correspondence from folks complaining about magazine problems. I never liked the answer I gave them, and that’s led to this article. There are four pieces-parts to a box magazine: the follower, which is the tray that lifts the cartridges into position; the spring, which powers the follower; the base plate, which secures the spring; and the box. This article looks at all of them and gives tips to maintain and repair your magazines.
In this installment of Reloading 101, it’s good to keep in mind what you’re dealing with, and that is a cartridge case, and what happens to it during firing, which is what we’re setting out to remedy when we reuse it. Read the full article to find out what’s going on with your brass.
Semi-automatic rifles and bolt action rifle are related but far from the same. When handloading for semi-automatic rifles and bolt-action rifles, it’s helpful to realize they are not to be approached the same way.
A barrel-twist rate is expressed in a chain of numbers that reflects on how far down the barrel a bullet must travel to make one full rotation. To fully understand barrel twist, read this article.
In Part 2, High Master Glen Zediker writes about important considerations in choosing a barrel for your AR-15, including contours, length, life expectancy, crowns, cryo treatments, and chambering choices. Read this article article to learn more.