PounderLabs Small Flame Annealing 

Have you any idea of what you are talking about? The information that he sighted was nothing to do with annealing brass. When I answer someone, I make sure I'm not nasty or scurrilously negative with my comments however, I try as far as possible to get people to study the facts & not simply parrot previous RU-vid vids. At the end of the day, it is up to folks like you & I to ensure that people who put this info out, have done their homework &, know what they're talking about. Quite some time ago, I was just like Don before I studied this subject more vigorously so, I hold nothing against him. My only hope is that, through honest, civilised comment, I can persuade people to do their own research.

Hi Tony.... Thank you for your viewership and your support... Jacob received his PhD in metallurgical engineering this past December and is now doing postdoc work. We are hoping great things for him and I'll pass along your congratulations ... Cheers mate!

Hi Don Thank you for your gracious reply - absolute best wishes in your ongoing encouragement of the young engineering PhD mate Thoroughly enjoying your presentations Keep up your motivation to transfer knowledge and share experience Kind Sir Best to you and yours Tony 🦌🦌🦌🦌🦌🦌🦌🦌🦌🦌🦌🦌🦌

Good evening Mr Rotas Australis I’m unsure whether your arrogance deserves the dignity of a response - but your closing articulation of hope for inspiration for independent research certainly resonates with me - should be a founding principle of all cognitive human beings Sir As a licenced electrician and dual-traded powerlinesman I certainly don’t profess to hold University qualifications to substantively KNOW what I’m talking about. I would never profess that even if I held a Cert IV Training & Assessment and used it to underwrite a current role in training, coaching, mentoring and assessing Apprentices of all ages, backgrounds and learning styles - no I would not allow myself to assert that Sir However, I read and enjoyed the reference articles provided and while I did not complete a degree in Science and Education many many years ago - but got 2 & 1/2 years successful studies squared away - I do remain cognitive of the basic principles of physics, chemistry, maths and why not throw a bit of biology in the mix also You’re very welcome to your opinion Sir and it’s your prerogative to share it what’s more - perhaps like yourself I learn a great deal from a mix of reference material - some of which is RU-vid including a number of established ‘reloading channels’ and professional world class competition shooters such as Eric Cortina currently and in earlier days the likes of our own World Champion BR shooter Brendan Atkinson and his Queensland mates Stuart & Annie Elliott Rimfire precision piques my interest too Kind Sir - recently hunted out a superb reference material that I’d searched for years ............”The Art of Rimfire Accuracy” by Mr Bill Calfee ........by all means research Bill Calfees resume and achievements in that specialised world of custom rimfires Sir - because I can honestly hope such research brings you the enjoyment and humility that it does me Yes Sir - I’ll continue to independently do my own research - but I will include and encourage persons such as Don here every step of the way as they enthusiastically look to humbly share and transfer their knowledge with others - quite content that as you say; as mature adults all of must take responsibility for our education, our learning, our research and ultimately the resulting enjoyment or otherwise of our chosen sports/hobbies and the way we conduct our lives as LAFOs in this contemporary world 🌍 Cheers for now Sir 🇦🇺🇦🇺🇦🇺🇳🇿🇳🇿🇳🇿🇺🇸🇺🇸🇺🇸🦌🦌🦌🦘🦘🦘🐏🐏🐏🐃🐃🐃🐿🐿🐿🦆🦆🦆🐗🐗🐗

@@tonypurton3135 I'm sorry you took my comments as arrogant, it was un-intentional on my behalf. Correction post RU-vid is usually a bitter pill to swallow regardless of how carefully chosen the words.

Rotas..... Thank you for viewing our video and your comments. If you could forward over any references/citations or any experimental data so we can better understand your position we would be glad to review those. In the meantime you may be interested in the experimental work reported in this paper.... Adegbuyi, P.A.O., K.A. Adedeji, A. Adebosin, and O.F. Alo. 2009. “Effects of Temperature of the Oxidation Kinetics of Copper Alloys”. Pacific Journal of Science and Technology. 10(2):163- 171. Pac We agree, and I hoped we've made it clear in the video, that color change associated with heating the brass isn't an indicator of brass hardness, or level of annealing. We limit the use of color change as guidance in our annealing process. To really know brass hardness you should use test measurements like Brinell or Vickers. You may also be interested in how we use hoop stress in bullet seating to help give indications of the annealed condition of the brass cartridges. This is discussed in the video on our PounderPress.

@@PounderLabs I read the report on the study you sighted. That study is concerned with the oxidation rate of coper alloys at elevated temperatures. I'm not sure how that relates to annealing rifle cases. That study was focussed on the oxidation rates at the specific temps mentioned & is much lower than the skin temperature attained through the use of flame annealing. The oxide layer can & will burn because of the significantly higher flame & skin temps of the case necks. The colours which are observed after flame annealing are primarily the result of the oxide layer burning & not the result of separation of alloying material. Further to this, I anneal my cases at around 800 C & if the oxide layer has been polished off prior to annealing, there is very little colouring to be seen on the surface of the brass afterwards. To learn more about 70;30 cartridge brass annealing, the following study report is an excellent source; GRAIN SIZES PRODUCED BY RECRYSTALLIZATION & COALESCENCE IN COLD ROLLED CARTRIDGE BRASS by Harold L Walker of the Uni of Illinois. The 2nd report is a far more technical paper on the mechanisms involved at different stages & temperatures. ROLLING & ANNEALING OF FINE GRAINED 70:30 BRASS by W Y Yeung et.al at the school of material sciences & engineering, Uni of NSW Australia.

Hi Rotas .... Thanks for getting back and citing some references. We'll look into it and see if we can follow your proposals. Yes, the paper we refer to is about kinetics and we just wanted to share the observation that "species" are moving around in materials. I'm sure you know with your background, that lead alloys are "hot" at room temperature and that soft solders, Sn-Sb complexes, can reduce in Brinell Hardness just by aging at RT and that antimonial lead alloys can harden just by sitting. We're not saying this has anything to do with annealing it just back to this idea that complexes, ions, etc. are moving around all the time and at elevated temperature they move faster. We agree, that just from a cartridge case sitting and seeing discoloration doesn't provide any insight into degree of annealing or otherwise brass hardness. Like we mentioned we just use it during the process to note change. Cheers, Mate.