September 3rd, 2015

How to Operate Kestrel 4500 NV Shooters Weather Meter

kestrel weather meter applied ballistics

The Kestrel weather meter is an invaluable tool for shooters. While the standard model Kestrels can record wind and atmospheric conditions, the advanced Kestrel 4500 Shooter’s Weather Meter with Applied Ballistics incorporates a built-in ballistics program developed by Bryan Litz of Applied Ballistics. This is a very powerful tool, but it can be a bit complicated to program at first.

In this detailed 22-minute video, John McQuay of 8541 Tactical shows how to input firearm specs, MV, and BC into a Kestrel 4500 NV (Applied Ballistics model). This handy unit combines a Kestrel Weather meter with a full-fledged ballistics computer.

Step-by-step the video shows how to set up all the important variables. The video shows how to input Muzzle Velocity, Bullet BC (G1 or G7), Zero Distance and the other key ballistics variables. In addition, the video explains how to input gun-specific data such as bore height, barrel twist rate, and barrel rifle twist direction (right-hand vs. left-hand). (Twist direction comes into play in long range spin drift calculations).

If you own a Kestrel 4500 NV (Applied Ballistics), we think you’ll find this video helpful — particularly when it comes to setting up some of the lesser-known data items. The video also offers tips on navigating through the menus most efficiently.


Kestrel 4500 Applied Ballistics (and Horus) Product Features:
kestrel weather meter applied ballistics

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September 3rd, 2015

Inside Look — Cutaway Weaver Scope Reveals Complex Internals

Based on its external appearance, a modern riflescope may seem simple. It’s just a tube with two or three knobs on the outside right? Well, looks can be deceiving. Modern variable focal-length optics are complex systems with lots of internal parts. Modern scopes, even ‘budget’ optics, use multiple lens elements to allow variable magnification levels and parallax adjustment. We had a chance to look inside a riflescope thanks to a product display from ATK, parent of Alliant Powder, CCI, Federal, RCBS, Speer, Weaver Optics. ATK sliced open a Weaver Super Slam scope so you can see the internal lens elements plus the elevation and windage controls. We thought readers would like to see the “inner workings” of a typical modern rifle scope, so we snapped some pictures. The sectioned Super Slam scope was mounted inside a Plexiglas case, making it a bit hard to get super-sharp images, but you can still see the multiple lenses and the complex windage and elevation controls.

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September 3rd, 2015

Digital Microscope Has Many Uses for Reloaders and Gunsmiths

Reloading digital microscope USM ipad tablet iOS Windows Linuxinspection

Old eyes not up to the task of inspecting your brass and bullets anymore? Need a magnified view so you can check bullet meplats and polymer tips for defects? Want to very carefully inspect a reamer before you run it into an expensive new barrel blank? Well then you can use this handy gadget — a high-resolution microscope that can be plugged into a laptop or tablet computer. It costs only $35.00 — about the same as a box of match bullets.

Reloading digital microscope USM ipad tablet iOS Windows Linuxinspection

The Plugable Digital Microscope is Amazon’s #1 Best Seller among digital microscopes. This $35.00 unit offers 10X to 250X magnification — more close-up power than you’ll ever need in your reloading room. Surrounding the “viewing” lens is LED halo light with convenient brightness adjustment control. This built-in light is very handy when inspecting the innards of complex parts.

This Digital Microscope works with Windows, Apple (iOS), and Linux operating systems. It can plug in to the vast majority of modern computers and mobile devices via a standard USB 2.0 port. The Plugable Microscope uses an industry-standard webcam chipset and sensor, so you can probably run the unit without needing to install software. However, if you have an older operating system, drivers are available free from www.Plugable.com”. Free third-party software is also available that lets you capture still pictures and video.

Reloading digital microscope USM ipad tablet iOS Windows Linuxinspection
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