05/21/2010 14:27
MPBR, a brief explanation
by Dave Affleck
Since writing about the extended MPBR achieved with my .17 Predator and .20-250 projects, I’ve received a few emails and private messages lately asking for clarification regarding exactly what MPBR is and why I choose to use it. So I decided to put...
05/20/2010 10:59
Here are some formulae that you may find useful in your long range shooting. But first, a few words concerning Minutes of Angle (MOA) and Mil (milliradian) dots.
Both MOA and mils are used to measure angles. There are 360 degrees in a complete circle. There are 60 minutes in a degree. A...
05/20/2010 10:58
This guide is intended to provide the user of a Mil-Dot equipped optic with information on what the reticle is used for, the basics of its use and how to train yourself to better employ and realize the full potential of this reticle.
How to use Mil-Dots
I am sure that most of you have skipped...
05/20/2010 10:55
Over the last couple of years the mil dot reticle has become less of an option and more the standard in tactical rifle scopes. Since its inception with the Unertl USMC sniper scope and later in various versions of the Leupold Mark IV scope, military snipers have come to know the mil dot reticle...
05/20/2010 10:49
demigodllc.com/icao.pdf
For the last three years, I have been using Density Altitude as the primary index to characterize atmospheric conditions.
From: Windmeters and Environmental Stations for Tactical Shooting (Guns & Ammo's Tactical Guns & Gear, December 2006):
...
05/20/2010 10:42
Al O - Spin Drift occurs, to some extent, during the entire flight of the round. The problem occurs at a greater degree when the round goes trans sonic because the bullet is then over stabilized. This cuses the bullet to fall nose high and presenting a greater surface to the air resistance. You...
