JFrank
Member
Have you tried regular propane instead of maps gas ?Once fired Nosler, 7 sec count. Base of the case is still cool, neck went red for a split second.
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Have you tried regular propane instead of maps gas ?Once fired Nosler, 7 sec count. Base of the case is still cool, neck went red for a split second.
View attachment 1144386 View attachment 1144387
The ideal situation is you use a great source powerful enough to quickly get the heat where you want it and then off before it can effectively spread to undesired parts of the case.
Even if it did 300f doesn't effect brass hardness at all. 400f takes somewhere around a year to anneal brass. The temperature could be held at 400f for a month before it starts to soften it at all.I've never understood this process. If you are getting the neck to 750 degrees to anneal it, the rest of the case has to be at the least 3-4 hundred degrees. I don't see how a person is going to hold a 300 degree piece of metal in their fingers.
Yes use proane. Propane is cheaper, works great and you can get 20lb tank.Propane doesn’t burn as hot as MAP gas, and works just fine.
Looks like this.
Using propane, if the flame changes from blue to orange you need to reduce the dwell time in the flames (speed up the index motor). The flame will change color before the brass starts to glow any shade of any color.
No glow, no annealing.
All objective science around “color change” and “glow” based methods proves both to be a waste of time, neither to be based on any factual science.
No glow, no annealing.
This is how I do it, before sizing. Target temperature is about 1,500f on the induction machine since the cycle lasts about 6 seconds.
I have already load and fired that one and it's been annealed like that and reloaded again. So you are wrong there.That one looks done, for good.
If you were so inclined there are propane lines available up to 20ft is the longest I have see them.No in Pa lol. The stores that sell full propane tanks have signs too. No tanks in the store. They keep them outside in a locked cage. Some towns banned propane grills on the porch. And they have to be so many feet from the house. At least here im allowed to have my grill on the porch or deck.
There is no correct temperature.The glow occurs when kinetic energy released by heat excited atoms enters the visible spectrum. In metals, that occurs in a narrow band of temperatures around 900* F. Plenty of science behind that. The question is what temperature should you anneal at?
The glow occurs when kinetic energy released by heat excited atoms enters the visible spectrum. In metals, that occurs in a narrow band of temperatures around 900* F. Plenty of science behind that. The question is what temperature should you anneal at?
Cartridge brass will glow around 950 degrees, whereas annealing - stress relieving - happens around 200 degrees cooler.
That one looks done, for good.
I have already load and fired that one and it's been annealed just like that and reloaded it again. So you are wrong there.It is. Absolutely.
Placebo effect.Always interesting how some look at what they perceive as annealed while others see burnt brass.
I finally broke down and got some Tempilac for my Anealeez.