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Tips & How To’s

These posts include specific tips and how to’s related to shooting and maintaining a precision rifle.

How To Measure the Apparent Magnification of a Scope

How would you go about testing if a scope really did provide 25x magnification, or finding the exact point where 18x was on a variable powered scope? That turns out to be a much harder problem to solve that it might seem. In an Outdoor Life article, they said “It turns out to be tricky to measure apparent magnification of an optic, for reasons too mathematical and abstract to mention here.” I concur. In fact, I spent more time talking with optics engineers and industry experts about this question than any other topic. The vision engineers at Edmund Optics offered ...

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How Do Rangefinders Work?

By understanding how rangefinders work, you’ll be able to employ them more skillfully in the field. This article should equip you with the fundamental principles. Laser rangefinders (LRF) all work using the same basic concept. The rangefinder emits laser beams at the push of a button. Those beams bounce off distant objects and the rangefinder’s high-speed clock measures the total time it took from when the beams left the unit until they returned. Since we know how fast the beam was traveling (speed of light) the unit can simply use that time measurement to calculate the distance it traveled, and ...

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How To Adjust McMillan A5 Stock

There are two types of adjustments you can make on the McMillan A5 stocks: Adjust Length of Pull (LOP) Adjust Comb (i.e. cheek piece) Both of these adjustments are designed to provide better site acquisition, comfort, and control of your weapon.  These same adjustments are common on most of McMillan tactical style stocks (A3, A4, A3-5, etc), as well as some competition and other models of stocks. How To Adjust Length of Pull (LOP) On McMillan Stocks If you don’t know what your length of pull should be, it’s easy to measure.  Check out this article on how to measure your ...

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Portable Reloading Press Plans

I wanted to create a portable reloading press stand that I could mount my full-size RCBS Rockchucker Press or smaller RCBS Partner Press to.  The plans I came up with were simple to build, used easy to find materials, and the finished product has worked exactly like I was hoping.  The stand is very strong and stiff, which is critical when designing a reloading press mount.  It is ergonomic and natural to use on either a table top or a work bench surface.  I just use one or two Irwin Quick-Grip Clamps to hold it securely to the surface.  The stand has “window cutouts” ...

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Chronograph Accuracy Tips – 15 Practical Tips to Increase Accuracy & Reliability

“No mere gadget, the chronograph is one of the most powerful tools imaginable in load development and problem diagnosis. A bullet’s velocity is one of the major contributors to its behavior, and if you don’t know what its velocity is, you may never understand that behavior. But knowing why the bullet behaves as it does, you can take intelligent corrective action that wasn’t available to you before.” – Dan Hackett, Precision Shooting Magazine A chronograph can be a powerful tool … but if you get more than a few “ERROR” readings in a row, you may be tempted to put ...

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RCBS Rock Chucker Reloading Press Mounting Template & Dimensions

I have needed the exact dimensions of both the RCBS Rock Chucker Supreme Press and RCBS Partner Press a few times, as I was working on custom ways to mount them (like this portable reloading press stand).  Unfortunately, RCBS doesn’t publish anything to help with that … so I made a template and thought I would share it in case it helps anyone else. Download RCBS Press Mounting Template with Dimensions  The mounting template, contains the exact dimensions related to the mounting surface, but here are a few more dimensions for presses that are also helpful (and not published anywhere). RCBS Rock Chucker ...

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Practical Tips to Extend Barrel Life

With the number of “overbore” rifle cartridges popular today, barrel erosion is becoming a hot topic.  For example, competitive shooters using a 6 PPC typically replace a barrel after 700-800 rounds, and a 6.5-284 might also need to be replaced before the 1,000 shot mark.  That means the cost to keep a good barrel on the gun could be 60-70¢ per shot before we even consider the cost of components like match-grade bullets, brass, primers and powder.  In reality, short barrel life could easily double your cost per shot.  So what can we do to prolong the accurate life of ...

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