A Data-Driven Approach To Precision Rifles, Optics & Gear
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Optics

These are all the posts related to optics, including rifle scopes, binoculars, rangefinders, scope mounts, and scope rings.

Rangefinder Binoculars Reviews & Field Tests: The Optical Performance Results

This is one of a series of posts about the results of field tests on rangefinding binoculars. Here are the models included in the test: Leica Geovid HD-B 10×42 (View Full Review) Leica Geovid HD Classic 10×42 Zeiss Victory RF 10×45 (View Full Review) Bushnell Fusion 1 Mile 10×42 (View Full Review) Bushnell Fusion 1600 10×42 Vectronix Vector 23 (View Full Review) Vectronix Terrapin (View Full Review) Leupold RX-1000i I hear so many people claim there is no way to objectively test optical clarity, because everyone’s eyes are different, so you just have to look through each pair for yourself. ...

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Rangefinder Binoculars Reviews & Field Tests: The Models & Specs

Welcome to the largest and most comprehensive field test & review of laser rangefinder binoculars ever conducted. I tested almost every pair available in a variety of real-world scenarios, to see which had the best performance in the field in terms of both optical clarity and ranging capabilities. The results are based on over 10,000 data points collected from the field over 3 months of testing. I shoot in long-range rifle competitions, and some have known distance targets and some are unknown distance. For example, in the Steel Safari competitors have to locate, range, and engage 6 targets within 5 ...

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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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Best Rifle Scope: What The Pros Use 2012

Meet The Pros The Precision Rifle Series (PRS) is a championship style point series race based on the best precision rifle matches nationwide. PRS matches are recognized as the major league of sniper-style rifle matches. At the end of each year, the scores from 15 different matches are evaluated and the top 50 shooters nationwide are invited to compete head to head in the PRS Finale Match. The info below is based on the equipment those pros brought with them to the most recent finale. This is a great set of data, because 50 shooters is a significant sample size, ...

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MIL vs MOA: An Objective Comparison

There are a lot of articles and forum threads out there comparing MIL and MOA, but most either aren’t objective or they’re overly complex. I’ll try to avoid both of those pitfalls in this article. Executive Summary A few months ago I asked Bryan Litz whether he personally used MIL or MOA. Bryan is an expert among experts in the shooting community, and after reading his books I’ve gained a respect for his scientific approach to decisions like this. His response was so concise and objective, I thought it could serve as the executive summary for this whole comparison: “You ...

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Rifle Screw Torque Settings Guidelines

I’ve had to reference back to these torque specifications a couple times, and thought it’d be helpful to post. It is a list of the recommended screw torque settings for most rifle parts, like action screw torque. These come from a lot of different sources (including manufacturers on the phone), but one great one is Brownell’s “Torque Specifications for Gunsmiths” Article.  As that article explains, these specs are subject to change as companies change their manufacturing processes, materials, and design.  However, many people believe consistent torque is at least as important as the actual number of inch/pounds (especially when talking about action screws).  Here is an excerpt from that article that ...

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Long-Range & Short-Range Hunting Scope Combo Setup

Note: This post is about scope setups that can provide both long & short range capabilities. I also wrote a buyer’s guide for long-range scopes, which includes what features to look for and specific recommendations by price point.  You can find that here: Best Long-Range Scopes: Buyers Guide & Features To Look For. Lots of people have asked me about what the best scope setup is for a long-range rifle that they plan to take hunting.  The problem with most long-range scopes is that it can be almost impossible to engage targets that pop-up at close ranges unexpectedly.  Nothing is ...

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Best Long-Range Scope: Buyers Guide & Features To Look For

Advertising around long-range scopes can be misleading, or at least marketers try to get you to focus on features that differentiate them from their competitors … even if they aren’t really that important. I created this post to boil it all down to the biggest features you should focus on when comparing long-range scopes. Of course you are likely going to have to make trade-offs between different features, unless you are willing to pay $3,000+ for a scope (which many shooters do). But if you’re on a budget like most people, this list should help you make sense of all ...

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Custom 7mm Rem Mag

I recently had a custom rifle built that was chambered as a 7mm Remington Magnum. I plan to use it as a dual-purpose rifle: Precision rifle matches (target shooting out to 1000 yards) Hunting (primarily whitetail & mule deer and the occasional wild hog) I did a ridiculous, almost embarrassing amount of research before landing on the 7mm Rem Mag cartridge. After losing a deer last year, I wanted to make sure it had enough energy to put an animal down quickly. There is no such thing as overkill. With that mindset, I actually started by looking at the 300 ...

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