In this video we’ll continue the precision loading process by using the Redding 3-BR powder measure and the Hornady Auto Charge to dispense powder loads. Next, we’ll cover calculating optimal seating depth, and seating the bullets. Thanks, Gavin http://ultimatereloader.com/wp-content/uploads/2010/11/AR-MPR-logo-wide-small.jpg
Tag: AR-MPR
AR-MPR: Phase II – Rifle Accurizing Plans
I just read a great article written by Robert Whitley of www.6mmar.com fame that was posted on the http://accurateshooter.com blog: What Makes an AR Accurate — Whitley Offers Answers Talk about good timing! This post helped me plan the first wave of accurizing activities for the AR-MPR rifle. My goal is to remove any factors […]
AR-MPR: Phase II – Sizing Depriming Priming .223 Remington
In this video we’ll start the precision loading process by lubing, sizing, depriming, and priming cases. We’ll walk through the features of the Redding Big Boss II, show how to lube .223 cases, validate sizing die setup, and then size/deprime/prime the cases. Next, we’ll cover charging the cases with the Redding 3-BR benchrest powder measure […]
AR-MPR: Phase II – Determining Max COL with OAL Gage
One of the important things to know before loading rifle ammunition is how far out (shallow) you can seat bullets, and what the optimized seating depth is for a particular bullet for your rifle and shooting application. For AR-MPR Phase II, we’re going for maximum accuracy, and also need to assure proper feed characteristics so […]
AR-MPR: Phase II Hornady Equipment Overview
In my last post, I gave an overview of some of the Redding equipment that we’ll be showcasing during Phase II of the AR-MPR project. I this post, I’ll cover some Hornady equipment that will also be used for this precision loading phase of the AR-MPR project. We’ll cover more Hornady gear (such as the […]
AR-MPR: Phase II Redding Equipment Overview
For Phase II of the AR-MPR we will be focused on precision handloading techniques and load development. For this phase of the project, I decided to showcase some of the popular Redding Reloading products that have an outstanding quality reputation. Here, we’ll talk briefly about each of these products. The Big Boss At the heart […]
AR-MPR: Phase II Kick-Off
Now that we’ve build and function checked the AR-MPR rifle (See Brownells Videos for Complete Details), it’s time to move from Phase I (Build) to Phase II – Precision Loading and Rifle Accurizing/Tuning. This rifle has already proven that it’s capable of meeting the original accuracy goal of .5 – .75 MOA (See Range Report […]
AR-MPR 1st Range Report – Unexpected Results
The mission for the first range trip with the AR-MPR rifle was to really do two things: First, it was about function checking the rifle. Second, it was about sighting in the Nikon Monarch 6-24x50mm riflescope. A third and less important goal was to see how accurate I could shoot this rifle based on […]
AR-MPR – Getting Ready for first range trip
Well, I’m pretty excited to be heading to the range to do the function check on the AR-MPR rifle, and get things sighted in. I’ve got a bunch of 20 round mags on loan, and all of the other accessories that I think I’ll need- but I’ll need ammo for sure. Why not break in […]
AR-MPR: Mounting Nikon Monarch Scope and M-223 Mount
In this post, we’ll look at what’s involved in mounting the Nikon Monarch 6-24 x 50mm riflescope to our AR-15 using the Nikon M-223 scope mount. Before we get on with the video, let’s take a look at the finished product: What’s nice here about using the Midwest Industries quad rail handguard, is the “continuous […]
AR-MPR – Nikon Optics Overview
One of the popular sayings amongst video professionals is “Sound is 50% of video”. The point is- many folks focus almost entirely on the picture quality in their videos, and neglect to pay enough attention to getting proper sound in their videos. Why do I mention this here? Well, 50% of a good precision rifle […]
AR-MPR: Build Part 7 – Lower – Buttstock and Mating Upper Lower
In this, the final AR-15 assembly video, we’ll walk through the installation of the takedown pin and the buttstock assembly. Finally, we’ll put the upper and lower together for the first time and establish basic functionality (formal function check to follow in subsequent posts). After all of the planning and work that went into getting […]
AR-MPR: Build Part 6 – Lower – Trigger Grip and Safety
Continuing our way through the lower build steps, in this video, we’ll look at installing the Geissele national match trigger assembly, the trigger guard, the safety selector lever assembly, and the pistol grip. Next, it’s on to the stock and final touches! Thanks,Gavin
AR-MPR: Build Part 5 – Lower – Magazine Catch Bolt Catch Pivot Pin
In this video, we’ll start the assembly of the lower by walking through the installation of the magazine catch, the bolt catch, and the pivot pin. You’ll see a trick for installing the pivot pin that makes use of a dulled razor blade, and a modified section of drill rod. From the video, in this […]
What’s next on Ultimate Reloader
AR-MPR Rifle during test fitting – Image copyright 2011 Ultimate Reloader Hey everyone, just wanted to take a moment to give you all a heads-up regarding what’s coming up here on Ultimate Reloader. 2011 is going to be an exciting year for sure! Among other things, we’ll look at the following: AR-MPR: Lower Build We’ve […]
AR-MPR: Build Part 4 – Upper – Bolt Carrier Group and Headspace
In this video, we’ll put the final touches on the upper assembly by walking through the assembly of the Bolt Carrier Group (BCG), checking headspace, and finally installing the BCG and charging handle into the upper receiver. Note: Here, I show you how to check headspace with the extractor installed. You can also do this […]



































































