Posts Tagged ‘AR-15’

Resources: Fundamentals for Super-Accurate Rifle Reloads

Thursday, January 31st, 2013
Measuring and adjusting bullet runout with .223 / 5.56 ammunition - Image copyright 2013 Ultimate Reloader

Measuring and adjusting bullet runout with .223 / 5.56 ammunition – Image copyright 2013 Ultimate Reloader

Recently I blogged about reloading accurate rifle ammunition:
5 Tips for Reloading Accurate Rifle Ammunition

In this blog post I outlined some primary considerations and processes:

  1. Start with proven loads and load data
  2. Fire form your brass
  3. Optimize bullet seating depth
  4. Optimize bullet concentricity
  5. Experiment

I wanted to expand on some of these points by providing additional resources for any of you who want to take a deeper look at these concepts.

Load Data

There’s a ton of great load data available online these days, and here are a few of my favorite online sources:

Optimizing Seating Depth

This should be a mandatory step for anyone reloading rifle ammunition for accuracy. Here are a couple of posts I put together on the subject:

…and if you want to jump straight to the videos: (click on the gear and change to HD if you want high quality :) )

Optimize Bullet Concentricity

Likewise, bullet concentricity is critical for accurate rifle ammunition! Here’s some posts that show how to minimize bullet runout:

Videos:

There you go! Hope these resources prove helpful. Have additional resources to share? Please leave a comment. It’s time to build some tack-driving rifle ammunition (will also need to go to the range)!

Thanks,
Gavin

AR-15 Precision Rifle Build DVD now available!

Thursday, February 9th, 2012

Today, I’m excited to announce that my first DVD production is available for purchase! This DVD contains the entire series of build videos from the AR-MPR project. If you are thinking about building an AR-15, this DVD will help guide you through planning and the build process.

Here’s a list of the chapters included on this DVD:

1. Planning: preparing for you build
2. Tools: AR-15 and general tools required
3. Upper Part I: ejection port cover / forward assist
4. Upper Part II: barrel / gas block / gas tube
5. Handguard Install
6. Bolt carrier group assembly/dis-assembly
7. Lower Part I: magazine catch / pivot pin
8. Lower Part II: trigger / Grip / Safety
9. Buttstock / takedown pin Install
10. Scope install

For more information, please go to http://nwgun.com/AR-MPR-DVD

Thanks!
Gavin

 

 

Coming soon to a home theatre near you! AR-15 Rifle Build DVD!

Wednesday, February 1st, 2012

**Update: The DVDs have arrived, and are now available for purchase here: http://nwgun.com/AR-MPR-DVD. Thanks everyone!

Hello everyone! Over the last month, I’ve been working on an exciting new project: my first production DVD. This DVD is what I call a “Web-Series” DVD which brings together a collection of content originally published on Ultimate Reloader onto a DVD so that you can watch it anywhere, and have it in your library long term. The first “Web Series” DVD will be the complete collection of AR-15 rifle build videos from the AR-MPR AR-15 Multi-purpose precision rifle project.

Coming Soon:

This is a high-quality production, featuring videos that were shot in HD, with off-camera sound, etc. This complete AR-15 assembly DVD will be value priced at $14.50, and should go on sale next week (about 02/08/2012 if all goes well). If you would like to see an overview of what’s included on the DVD, you can check out the product page here: http://nwgun.com/store

More details to come!

Thanks,
Gavin

AR-308 – Precision Loading Pt. 4 – Seating Bullets Checking Concentricity

Thursday, October 27th, 2011

In my last video, I covered priming and charging cases, see AR-308 – Precision Loading Pt. 3 – Priming and Charging Cases. Now we need to seat bullets, and also check/correct for concentricity of the bullet. If we have a consistent charge, a benchrest primer, consistent case neck thickness, and a properly/optimally seated bullet, we’re going to have some mighty fine results (especially considering the rifle that we’re using).

More details to follow! My next set of posts in this series will cover progressive reloading equipment and the RCBS Bullet Feeder for 30 cal. It’s going to be fun!

Thanks,

Gavin

AR-308 – Precision Loading Pt. 3 – Priming and Charging Cases

Sunday, October 23rd, 2011

In my last post, I walked through the process of using the Redding Case Neck Gage to sort our 7.62×51 (Military 308 Winchester) brass into buckets based on both thickness and uniformity. Below is a picture showing the distribution. The numbers I’m using here (0.016″ +/- .0005″ for example) reference the total variation in thickness, so this is really +/- .00025″ if you want to get literal. Pretty decent! I’ll use the brass with more case neck thickness variation for progressive loading, or possibly even to turn the case necks in the future. For now, we have some great batches of brass to work with.

Sorted 308 Winchester Brass - Image Copyright 2011 Ultimate Reloader

Now it’s time to prime the cases on the Redding Big Boss II, and then to charge the cases. For these loads, we’ll use a new powder called IMR XBR 8208. I’m excited to see how this powder performs with the LR-308B!

IMR XBR 8208 Powder - Geared towards benchrest shooters - Image Copyright 2011 Ultimate Reloader

And here’s the video showing the process of priming the cases on the Redding Big Boss II, and charging the cases with the Hornady Auto Charge.

Next, its on to seating bullets and checking/correcting concentricity.

-Gavin