ARP 035 - Big Boar Tactical FRN Staff Shoot


Steve, Reed, and Brad talk about their shooting at Big Boar Tactical just outside of Dallas, Texas. Intro:  

Welcome to episode #35 of the AR15 Podcast.  I’m your Firearms Radio Network Roving Correspondent Steve here with your host Reed and Brad from the FRN IT team. This is THEE podcast about your favorite black rifle! This show is for you; whether you're building your first AR or you’ve been building ARs for years. There’s something we can all do to take our black rifle to the next level.

Main Topic:Big Boar Tactical FRN Staff Shoot / Training - Description of property: acreage, pond, elevation and surrounded by berms, pistol and rifle targets (steel and paper) line the north and west    berms; helicopter sniper targets, 3 story structure - Pistol steel (speed/accuracy with hostage etc.) - Double tap challenge ( 0.25 seconds is good) - Rifle at 25 yds (shooting and reloads) - Rifle at 50 yds (red dot and iron) (shooting and reloads) - Transition drills - Moving and shooting while approaching targets, along with transitions - Stress of shot timer and competition - Dealing with the heat

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Winner: Daniel C.

Here is some feedback on the show.  Love it. I am new to the AR platform and love my ARs versatility.  My next project will be to build one piece by piece. I was curious if it is possible to assemble an AR within a normal show (45-60 min).  If so, having a detailed walk through of how to put it together would be great,  basically whoever is assembling just narrates what they are doing.   If it can be done within an hour it would go to show how easy it is, as well as provide step by step instructions for listeners to download the podcast, crank it up and have someone in our ear explain what to do.  Ok keep up the good work thanks for giving us another great podcast to listen to.

Feedback / Listener QuestionsDan M.: I own a Colt 6940, which has a monolithic upper and a Rock Rivers Arms LAR-8 that has a Standard upper. I was wondering if you could do a podcast on the pros and cons of monolithic uppers vs standard uppers.

Tom J.:  I've been thinking about building my first AR. Before I buy my lower can you explain the difference between the single stage vs two stage trigger assembly?

David D:  Hi Steve and Reed, I have been listening to your podcast for about one month. I would rate it a big six. I am shooting a 223 and a 6.5 Grendel. I built the 6.5 Grendel upper and I am getting great groups with it. I am using a 120 grain Berger target bullets with VihtaVuori N-130 powder. I used the Berger Bullets Reloading Manual, first edition to get the information to load for my Grendel. I am getting half inch groups at 100 yards. Your podcast has been a great teaching tool for me. I have been loading cartridges for almost 24 years.  When I first got into to reloading I would read a lot of gun books and magazines.  I would read about lubricating the bullets with molly coat. You would have a tumbler with steel shot in it add some molly dry lube and then the bullets. The tumbler would make the steel shot pound the bullets with the molly lube. I do not see anybody talking about lubricating bullets anymore. Did they find a problem with lubing the bullets, did it cause a problem with the barrel. I did add a few photos of my Grendel and a target for you. Thanks keep up the good work

Bob from Keokuk:  Reed, You do a fine job on your own but I enjoy the two man podcasts more. You had someone ask a question about melonite finish vs chrome lined.

Chrome lining is a surface plating. So the barrel will be made slightly smaller before lining. The barrel is plated with the Cr to a given thickness to bring the size into specification. I have read different opinions about reducing accuracy. I think it is one of those things while plausible in the real world 99.9% of people will not see a difference.

The melonite finish is not a coating. It is a carbonitriding. There are different methods but the goal of each is to increase the amount of nitrogen and to a smaller extent carbon in the crystal matrix of the steel. By adding Carbon and Nitrogen you make a small layer of the steel extremely hard and abrasion resistant. The steel is not coated but actually changed to a given depth. I can see how theoretically this is better, the barrel is made to size so any imperfections are not magnified by adding a lining and because the steel itself is changed there is no worry of the lining coming apart from the substrate. If cost is the same I would probably go with the melonite. However, if the difference in cost is significant I don't see that I would experience much of a difference.

If you care about the metallurgy here is a thumbnail of what is going on. I am not an expert and this is extremely rudimentary.

Carbon and Nitrogen are very small atoms compared to the iron that makes up the majority of the steel. Molybdenum, Chromium, Manganese and Nickel are all similar size so they take the place of an iron atom in the crystal structure. C and N are extremely small so they live between the iron atoms. By doing so they can make nitrides and carbides in the structure that are extremely hard compared to the iron matrix surrounding them. The C and N that stays in the steel matrix also makes the movement of atoms more difficult so the iron matrix is stronger as well.

Generally in steel making you don't want much Nitrogen dissolved in solution when it is liquid. As the metal changes from liquid to solid the steel cannot hold as much dissolved nitrogen so eventually when the saturation point is reached the nitrogen comes out of solution as gas and leaves pinhole voids in the steel. (Best illustration is to look at ice frozen with some filtered water. You have clear outside surrounding a cloudy center. As the water freezes it cannot hold as much gas in solution. The gas has nowhere to go but into the liquid water remaining. At some point the water cannot hold any more gas so it comes out of solution and you get the bubbles in the center.) When the steel is in a solid solution if you heat it up in a nitrogen rich atmosphere you can get the nitrogen to dissolve into the surface. Many of the processes I have read about use a molten salt bath or a plasma to excite the atoms enough to dissolve in. Once you have the depth that you need the metal is cooled and the nitrogen is trapped into the crystal structure.

If you are still awake, thanks for the podcasts.

FRN Intern Announcement The Firearms Radio Network is looking for talented interns who would like to help keep FRN running.  Ideal qualifications include experience editing audio, video, as well as working in WordPress.  Interested applicants can forward their resumes to

Handgun Radio Check out the newest show on the Firearms Radio Network called Handgun Radio, hosted by Ryan Michad.  Its a great show for anyone interested in handguns and Ryan’s insight is excellent.  It can be found by searching iTunes for Handgun Radio, or visiting  Give it a listen.


ARP 017 - Ballistics

Welcome to episode #17 of the AR15 Podcast. I’m your host Jake Challand with Co-host Reed Snyder. This is THEE podcast about your favorite black rifle! This show is for you; whether you're building your first AR or you’ve been building ARs for years. There’s something we can all do to take our black rifle to the next level.

AR-15 Product of the Week:

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Main Topic:


  • Internal ballistics (sometimes called interior ballistics): the study of the processes originally accelerating the projectile, for example the passage of a bullet through the barrel of a rifle
  • Transition ballistics (sometimes called intermediate ballistics): the study of the projectile's behavior when it leaves the barrel and the pressure behind the projectile is equalized.
  • External ballistics (sometimes called exterior ballistics): the study of the passage of the projectile through a medium, most commonly the air between firing tool and target.
  • Terminal ballistics: the study of the interaction of a projectile with its target, whether that be flesh (for a hunting bullet), steel (for an anti-tank round), or even furnace slag (for an industrial slag disruptor).

Listener Feedback:

Dug Harris: AR-15 Podcast question I recently purchased a BCM AR-15 .556, rifle length (20”). For some reason it has a problem cycling steel cased .223 ammo. It does great with brass. When I say problem, I mean problem as in it won\'t eject the case and strip the next round...ever.  What do you think the problem is?  Thanks much and love the Podcast.

Joe:  Next, magazine springs. In 30 years of competitive shooting, collecting and selling guns, and running a small gun company, I have never seen a magazine spring that was too \"weak\" to function.  I don't believe springs wear out from sitting in a loaded magazine and will only believe it when I actually see one! I've found magazines that were left loaded for over 50 years that function fine. I might believe a spring could take a set that might impair the feeding of the last one or two rounds in a hi-cap mag, but have not seen it. Gunshops make a good profit on springs so consider the motives...

Finally, you mentioned shooting your personal defense ammo every 6 months or so to get \"fresh ammo.\" Ammo ain't fruits and vegetables! I've shot ammo from the turn of the century that is fine and performs as it did the day manufactured. I've got lots of CMP surplus from the 50\'s that is great ammo. I even have a test running. I've got a case of Mauser ammo from WWII. No telling what it\'s storage condition was for the 60 years before I got it. Since I purchased it, it has been in the workshop at my hunting camp. The high temperatures are over 100, lows in the 20\'s and usually about 80% humidity. Three years ago the camp flooded and the ammo was under about 5 feet of water for 4 months. I was going to throw the ammo out, but decided to keep it; I guess it\'s my hoarding problem! I cleaned the sand and mud out of the case, but didn't take the cartridges out of the boxes. I\'m going to shoot a box every summer to see how long it functions - so far, it\'s fine.

Myles: With your recent conversation on Canadian gun laws I thought I would chime in on what firearms laws look like in another commonwealth country.  New Zealand has some of the most liberal gun laws in the world, but they still suck. Suppressors are commonly available for as little as 50 NZ$. It\'s almost as easy to get Chinese M-14s, SKSs HK SL8s and AKs. The gun registry was done away with, if you want to legally own a firearm you need a permit of some sort, but they are fairly easy to get. However if you want an AR-15 there is only one option I know of, Bushmaster imports some ARs but they are TERRIBLE. They are so neutered that they make California compliant rifles look like a weapon of mass destruction.

Pistols are very tightly restricted, there is no legal CCW. To get a pistol permit you have to re qualify with your weapon once a month on a police range. Also I would imagine that shooting an intruder in your home, even one with murderous intent is a no no. Because you know all life is precious, even the lives of murders and rapists.

Illegal use of a firearm is a very bad idea because the country is so small that there is about an 87% chance that if you are firing off of a designated range you will be ratted out and the police will set up a cordon and swoop down on you. There have been several cases of this sort of thing happening over the past few years.

One more nutty note, in New Zealand you can legally own fully operational machine guns, mortars and automatic cannon under a collectors license. About a year ago a shop in Christchurch was advertising that they were selling 30MM antiaircraft cannon and MG34 machine guns for about 7,500 NZ$. Boasting about how a similar gun in the US would cost significantly more than that. Just one caveat though, if you own a machine weapon or an artillery piece you have to promise to never ever use it!

Bryan Bramley: Hi Jake, I've been listening to your podcast  since January and I really enjoy it. I appreciate you and Reed taking the time to put it together. I have a Rock River Arms LAR-8 (.308), Smith and Wesson M&P15, ISSC MSR (Resembles a SCAR) .22lr, and a Taurus 9mm... But who wants to talk about pistols, haha. Just wanted to say hey and thank you for a great podcast. Also, can I please be added to the running for all the great products you give away? Please let me know if there is somewhere I can sign up, thanks again!

John:  I have been enjoying the podcast so much since I am in the process of building my own. If only the parts were available. But oh well, in time. Eventually I want to build a 300 Blackout upper. That cartridge seems so interesting and fun. Well anyway keep up the great work.

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