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How to Use Your Mil Dot Riflescope The Mil Dot reticle is primarily a range finding device that uses the optics of a riflescope and the known dimensions of a grid (the reticle) at unknown distances to estimate the sighted distance to a target. As a secondary function, the Mil Dots on the reticle can be set up as aiming points to compensate for holdover and wind drift. We'll address the range finding system first. Most Mil Dot scopes are set up …

Headspace Gauges Explained by Eben Brown, copyright 2018 by E. Arthur Brown Company, Inc. We offer headspace gauges for use in fitting replacement barrels to bolt action rifles. And that's pretty straight forward. But when customers use our headspace gauges to "CHECK" headspace on guns with barrels already installed, it can cause unnecessary anxiety over false or meaningless results. With some guns (like TC Encor …

Trim Length for 6.5mm BRM and Other BrassThere are two reasons to trim your brass: First is just to make sure it's not too long for your chamber. But second, is to even them all up to the same length for accuracy considerations. 1. A Chamber Diagram (left) will tell you the maximum length. If everything measures shorter than that, you shouldn't have to trim unless you want to even them all up. Chamber diagrams for most cartridges are listed at the ammoguide.com website. 2. How to …

A Sweet Spot for Accuracy Exists Somewhere Between a Jam Fit and .150" Off the Lands... Introduction by Eben Brown - The popular thinking is to seat bullets as close to the rifling as possible if you want to get accuracy. But that isn't always the best approach. This article on Long Jump bullet seating was brought to my attention by Nick Wynne (aka UncleNick) on Shooter's Forum. It explains a lot of things... For example: Roger Brown's .127" Group with a bullet seating depth of .14 …

BRM Cartridges - General Information and Descriptions The BRM series of cartridges were developed to give big game hunting performance in cartridges that are optimized for small framed rifles and single shot handguns... Such as our Model 97D Rifle, BF Pistol, TC Contender/G2, and TC Encore. The first (and most successful) cartridge in this series is the 6.5mm BRM. Essentially it is a lengthened and necke …