Need annealing help

[Jayman_10X]

Hi Guys,

I am new to the practice of annealing. After some research I picked up a bottle of 650 degree Templiaq and proceeded to anneal my 270 Win brass. I am heating with a standard propane torch. While heating I notice the templiaq inside the case mouth burns a purple color. What I am not sure is if that is the point it is melting or not? Also the templiaq inside the mouth has a charcoal color/residue. I am annealing in the dark and the cases begin to appear a dark red before I cut the flame. I am just not sure how to use the tempilaq as a gage for when to stop flame?


I appreciate any insights.


thanks

 

[NoFail]

How many seconds have you figured it is taking to achieve the result you describe? Me, I am not using Tempilac but rely on visual and time. I stop when the color of neck is entirely glowing red. It's about 7 -8 seconds using just a Colman bottle and torch head.

I think their are varying opinions I have read on this subject. But generaly for .308 brass, which is what I anneal, seems to be 6-8 seconds for most poeple, .308. .270 I don't know but that case is probably very close to .308?

 

[joemusso]

if i were you i would get 750 tempilaq for the neck and shoulder and 450 for the body and head.
the head is not supposed to get above 450.

i have a bench source machine and that's where i got the temp recommendations
my recommendation is go read this it very informative
The Art and Science of Annealing

 

[cobravenom39]

I bought the 750 and 450 pens from McMaster and read 6mm's article, but have some other questions. What does the tempilac look like when it "burns?" I plan on trying it out on a discarded case that was cut too short, but I just want to be sure. Also, about how long for a baseline on .338 Lapua Magnum cases (Lapua brand).

 

[No1]

the tempilaq melts at the rated temp. It changes color/turns glossy at the rated temperature from the dull powdery appearance of when it is applied.
Soon enough after you've done several cases you'll have a feel for it and won't need to put it on every case.

 

[milo 2.0]

How many seconds have you figured it is taking to achieve the result you describe? Me, I am not using Tempilac but rely on visual and time. I stop when the color of neck is entirely glowing red. It's about 7 -8 seconds using just a Colman bottle and torch head.

I think their are varying opinions I have read on this subject. But generaly for .308 brass, which is what I anneal, seems to be 6-8 seconds for most poeple, .308. .270 I don't know but that case is probably very close to .308?

You totally glowing red, are they turning black when cool? I thought a guy was to get a faint glow and quit. My over annealed cases turned black, I still shot them and they survived, but was leary of them.

 

[NoFail]

It's just a fraction of time from the start of it to glow to full glow. The shoulder doesn't glow yet just the neck. I hold the tip of blue flame right at neck shoulder junction and spin the case in a 1/2" socket in a hand drill at slow speed, which is in vise. Color it seems to depend on how clean the case is. If I do it after SS media cleaning, which makes them very, extremely clean, they don't come out that chalky black color. They turn out more like, well more like a piece of new Lapua might look. If I do them when dirty then they turn out more black like. I do them when dirty now because then I go directly from there to sizing and then trimming, I do any prep I have to do and then SS media tumbling to clean, & done. I just don't like cleaning first because then I'd have to do it again after all the prep. Doing everything first before cleaning does not seem to be a negative thing in my experience.

 

[coues7]

I find it hard to get temps right even using tempilaq on the inside of necks

 

[Jayman_10X]

Thanks for the input gang. I did read the 6mmbr annealing article. Good stuff, but I still do not understand how to tell when the tempilaq is at melt point at I anneal in the dark.


thanks

 

[NoFail]

I do it in dim light, that's good enough, still have to see.

 

[chariotdriver]

I use the Giraud annealer which seams to be doing a great job.........the 338lm brass looks like it did out of the blue box; 8 seconds with the flame point at the base of the neck. Been getting 10+ reloads before the primer pockets start getting loose.......then use them for subsonic loads