I now see how Mr. Krieger raised the bar for accuracy. He has forgotten more than we will ever know and he still has that drive to get better! Wow

Erik didn't even have to ask hardly any questions. Just a straight knowledge injection.

Dude...how you didn't lose your shit and delivered that measured, professional response when he started talking about the guy who called him about tuner he made was legend. I was dead laughing

You heard it here folks, John Krieger says no "break-in" needed

My first real benchrest gun in 6PPC had a Krieger barrel. It was the first time I could consistently shoot sub quarter minute groups. I cut that barrel back and re-chambered it twice because I didn't want to let it go. Great interview.

Eric you need to have him on again i feel you you only barley scratched the surface on what that man knows love it keep up the good work MR.

Mr Krieger is a wealth of knowledge! Well done Erik!

Erik what a superb podcast! Mr kreiger is a wealth of knowledge, it would be great to have him on again, steve uk

Excellent interview! I’ve been a Mechanical Engineer for 25 years and this interview brought back many of the topics I studied and also had questions about regarding barrels. Just amazing, thank you.

I know it would be very hard to do but I’d love to hear Krieger,Brux and Frank Green(Bartlein) talk about barrels and anything else they find interesting. Maybe add a top notch gunsmith or 2 and just turn them loose while the information flows. Thank you for letting us share this stuff.

John is super nice guy. Makes me want to buy barrel from him and I don’t need one. We need more people like him in this world instead of wise guys!

Always enjoy these technical conversations Eric, even though I don’t competition shoot. Your guests are a wealth of information, and very interesting to listen to. Thanks Eric ✌️😎👍

Locktite is used all throughout the auto industry. The spark-plug tubes in my 2003 Dodge Neon RT were glued in at the factory with stud and bearing mount…aka red locktite.

I want to say that this was the best interview. But there has been so many excellent and information packed episodes, so i will just say that it shut me up for an hour. And im still trying to process half of it. A big thank you Erik for all the work you put in doing this. And of course also to Mr Krieger. 👍♥️

Thank you Erik for all your videos, it really help new members. Thank you.

Great interview. Nice to hear his insights coming from a high a high power/barrel maker perspective. I've had a fair number of Kriegers over the years and shot many personal bests with them.

Man, what a nice guy. Mr Krieger too.

Awesome!! One of the top three interviews in my opinion. Mr. Krieger is a wealth of information and effectively conveys its with a very pleasant attitude. Bravo.

Man all I can say is my M110 AR10 barrel is superb. Shannon over at Johnnys reloading bench turned me on to all of this. But the Krieger barreled AR10 he built and reloaded for was my personal turning point. After seeing what his build was capable of I was all aboard. It was just fate that I wanted a AR10 when Shannon started that series. What Shannon does in his videos with his rifle mine does the exact same thing. That’s a testament to the quality of the barrels they make at Krieger.

Holy information overload Batman! I’m going to have to listen to this multiple times. 👍🏻

What a wealth of knowledge on barrel making John has acquired. Very informative interview great guest to have on Erik

Outstanding, Outstanding, Outstanding! ! ! ! ! ! ! !

What a super great interview!!!!! It should have been at least another couple of hours!!! I was most interested in the conversation regarding lapping the barrels. Back in the 60’s and 70’s I was employed as a carbide a die maker. We used assorted grades of diamond compounds to first lap and then polish the die after it was first reamed. The rule of thumb was to always use the lap or polishing stick of softer material than the carbide die. Of course that was easy as only a diamond was harder than the carbide. We also made hardened steel spacers behind the actual die. If for some reason the toolmaker thought he could make the lap out of a piece of hardened drill rod, so as to only make one lap instead of 4 out of a softer steel. The result many times the steel insert would end up with a really bad finish as the diamond compound would not embed it self into the lap and would just roll around between the two hard surfaces. So my question is what type of material would the laps be made out of to prevent the lapping compound from embedding into the bore of the barrel???? I’m pretty sure the don’t use diamond compounds in their process. Just wondering! Thanks for a wonderful video!

Another fascinating interview.

Great interview! My first Krieger barrel arrived yesterday. 😍

This is fantastic! I love my Kreiger barrel!!!

Erik, all you had to do for this interview was ask Jack a question and let him go. He'll talk your ears off! Good stuff.

Great interview! He may not be current on every discipline but they still make a great barrel that still are setting records

Thank you for the another great interview from a great firearms industry individual. Please consider doing interviews with Dave Gullo of Buffalo Arms Company in Ponderay, Idaho, much like yourself Dave is a multi championship shooter for many years as well as a manufacturer and supplier to the firearms industry. Also, Adam Weatherby, a third generation rifle manufacturer, the grandson of Roy Weatherby.

Perfect timing for this guest. I had already decided on ordering a Krieger barrel in the next few weeks. It will be my first Krieger and first cut rifled. This interview certainly gave me confidence and excitement. Thank you both for your time.

I have heard this is the guy who knows what matters and what doesn’t and that barrels have their own personalities no matter what.

What a wealth of information! thank you Eric!

Thank you for making the advertising interesting lol. Amazing content, thank you for sharing.

Thank you for sharing with us such informative conversations.

Another great one, Erik.

John's comment on the artillery rear driving bullet describes the Remington Core Lokt. Not sure how many people are aware, but below the cannelure they're typical of size, but above the cannelure, they're relieved. This parallels the first 264WM ammo when the M70 first chambered it. And often Core Lokts are regarded as pretty accurate for a low cost bullet.

Wow that was awesome what a fun guy to listen to

A ton of good information on that episode. Appreciate it as always

I worked as a machinist for about 17 years. I could relate when he said most of machining is the rigidity of the setup. I worked at a place that would machine stainless steel bores with a small diameter boring bar. It was difficult getting a good finish within .001 to .002" of taper.

Goldmine of information from a highly respected titan of the barrel and competitive shooting world. He has probably set aside more fallacies than any other person I have seen you interview. Totally out of the park Eric 👍👍

Best one yet !!!!!!!

I binge-listened to the interviews with Brux, Bartlein and Kreiger and it's amazing to hear the different opinions on barrel cleaning considering all 3 makers use similar materials and processes

My favorite one so far. This guy is a walking encyclopedia. I would think the next generation barrel maker would be making their own steel and probably some fancy way of spinning it while it's molten so you get good grain structure and heavy particles to the exterior. Another way might be platinum or some other metal sleeve could be inserted in at extreme temperatures then machined. Maybe there could be 3 layers one for strength, one for vibration absorbing (like cast iron) and one for machining. I love how technology is always pushing the limits. I was thinking maybe you could test how good a barrel is in tune by measure the hertz it produces like a "chime" When the powder goes off it's a huge explosion and if your barrel gets bad vibrations from that explosion I don't see how that could be good. So maybe using your turners and some kind of chime test would be interesting to me.

Fantastic interview, man, I'd love to just hang out at some of these barrel shops. Holy crap I shot with Boots a couple years ago, super nice guy. If he shows up on the 2nd day of a match, prepare for wild ass weather, apparently he has some kind of voodoo that follows him around. Mr. Krieger is ridiculously knowledgeable in the entire area of rifles. I've seen a couple of his interviews, and he shoots it straight. After seeing a brand M-16A2 batch absorbed by an armorer and Army master gunsmith, and assisting in bringing them into a unit, zero break in, we took them out, fired 100 rounds in each M-16A2, and that was the break-in. We cleaned each really well, and the master gunsmith (usually an 18B) borescopes them, and they make the determination if it needed to go back to Colt or whoever made the rifle. All the ones we ingested were Colt, because it was the first batch post field test to hit the unit. Really neat to see the entire process. One of my favorite details to ever get assigned on. I saw numerous M-16A2s shoot sub 2MOA at 300yds. I don't know if it was just how well the rifle barrel was, or how well tuned they were. Having a well build M-16A2 has way more going on than a bolt gun. A lot more going on in those gas guns. I would've never expected that bow/bend not to introduce any issues. I am also a world-class race car driver, just something I do as a hobby, in my mind driving down I-75 through Atlanta, I like to imagine I am in the Monaco Grand Prix. Luckily, I haven't been put into the wall or hit a caution. I liked that phases of the moon on rimfire, aint no lie, you best find out the astrological sign of your rimfire barrel and have a reading done with it.

You want to make the barrels last longer and shoot better? You need a new propellant that operates at lower temperatures and provide a longer pressure duration at lower pressure. It is flame erosion that kills barrels not the bullet friction. Nice to hear from a maker that does not exaggerate or express so called facts outside his level of expertise.

Best barrels on earth, nothing comes close

Wow, what a great interview.

Finest quality barrels, and excellent customer service.

The end result is nice, but it really changes the whole purpose of the rifle. Its intent is lightweight and handy for normal hunting ranges 300 to max 400 with 90% within 200. A big part of that is a 2nd focal plane scope with a thick and fast reticle.

Nickel is an austenite, so it stabilizes grain structure in alloys. Low nickel stainless like 304 and 309 will essentially rust, not really, but close enough, higher nickel content like in 316L it has better corrosion resistance but becomes softer. The 416r used in high quality gun barrels is about as close to perfect as can be achieved, but it's called crucible steel because of the chrome content that makes it hard. I'm sure it can be tweaked a little, up or down on the nickel content and maybe even mixed with magnesium, I don't know for sure. You can also use titanium alloys, but it can't be pure, it has to be an alloy, with that said, there might be a use for titanium coatings inside the bore. I'm sure someone has tried many of these things and most likely concluded that it's cost prohibitive.🤷🏼‍♂️

Wow, what a wealth of information! 😊

Best session ever.

John Krieger is a few levels above anyone else, Krieger is still the ultimate standard.

unbelievable knowledge. Able to keep up with what he was saying as he was talking many grades above my pay by the absolute ability to explain so well!!!

Exceptional interview.

Thank you that was wonderful :)

Thank you for the knowledge

Great interview, it's amazing competitors in the same business are friendly, now in this cut-throat world !!! But as what was mentioned, it's a slow process.........................................

@ 46:40 he mentioned Karl Kenyon which really surprised me. Makes me curious of how many folks around these days know who Kenyon was.

Incredible knowledge!!! 🐕

Great video still waiting to get my hands on a Krieger rimfire barrel.

What a wealth of information from Mr. Krieger. Just wished the really good barrel makers weren't so far behind.

john krieger what a vast intalect

Really interesting about the sleeve being installed into the throat that will take the heat.

Well, wasn't that amazing😮🎉❤ Thank you

Krieger has so much experience......

What a nice surprise

Very good discussion. I am curious why 410 SS isn't used much. Is it harder to machine?

Always wondered why there's not hexagonal rifle barrels. They make them for pistols

He wanted to keep talking….Seems EC was ready to stop just listening. Lots of perceived restraint on EC’s part though. Good episode.

I’m a tool and die maker this guy really knows his stuff

Finally almost caught up. Only took a couple hundred hours in the seeder.

Thanks Erik, I am extremely curious of Mr Kriegers opinion on PM steel for barrels, it is suppose to be much more homogenous Is it possible to get a reply from him.

Very intelligent man

The mention of more consistent steel is interesting: could barrels be made by a powder metallurgy process, like high end knife steel is?

Which steel makes a better barrel? The heat number that you can cut 10 barrels without sharpening or the heat number that requires tool sharpening after every barrel or even every pass? I'm wondering if the harder/denser metal, makes a better barrel? Thank you again for such great content ‼️🤙

I would hate to see the price tag on a barrel made with CPM or any of the other powder metallurgy steels. Just a small thin chunk for knife making costs an arm, leg and a kidney.

I have a krieger barrel on my 223, it's very accurate.

Is there a 26 or28 inch barrel, for a 300 Remington ultra mag, shooting 190 grain. Thanks,in advance!

Ha ha ‼️ Barrel tuners are pretty common from the King of tuners 😂that's classic.

I do believe there is better steel. However your reamers and everything that cuts would probably have to change as well. Unless Rockwell hardness stays the same, and you’d have to learn the steel and how it reacts.

Interesting conversation about barrel steels. You guys need to contact one of the innovative knife companies like Spyderco. They are the masters of steel metallurgy. More homogeneous, powdered steels (CPM) already exist. Granted, the appropriate steels for barrels and knives are vastly different. I was amazed that the average barrel only has a rock hardness of around 30...knives are in the 50-60+ harness range. Again, very different application.

Precihole CRVN Series - Cut Rifling Machines

Good friends are good

OMG John Krieger.

Thoughts on progressive twist?

Did this video come out in March…the code for CMS expired on 3/31/23. Just saying

Any rimfire experiments with multiple, shallow grooves; similar to airifles?

What if you have a receiver not threaded and barrel not threaded, attached both somehow then test fire, 5 rd then rotate 25 degrees , repeat then see what the group results?

Could it have to to do with resistance. As the bullet heats up, the lead expands. Buy making it looser on the end, it makes room for the expanded load. Less resistance out of the barrel. 🤷‍♂️😅

Mr. Kreiger could I tour your shop, I live in st.paul mn

Listen carefully - now you know why one barrel shoots better than another.

❤

flow forming rifling

Subtítulos. Please

Bartlein recommends some mild break in and says never use any abrasives, Mr Krieger states no break in and, "Oh yes, abrasivs are fine, I like them they are so mild. Both of their barrels are so similar. Always 2 sides to the coin.

Has anyone ever made a barrel from ar500 steel?

But gain twist have other benefits besides precision.

"They call them tuners now."

What is air gauge and how it works