Tempilaq for case annealing.... Source?

[762shooter]

Thanks for the vids Kryogen. How many reloads before you need to anneal?

With my .308 target loads, my sizing die (Forster Benchrest) is set so that it just kisses the shoulder of the cases so I'm not working the brass much other than the case necks. My guide to when I need to anneal is when I feel much resistance raising the resizer ball out of the case its time to anneal. I know this is kind of vague but I know it when I feel it.

 

[DG Photography]

Been doing it for a few years using a homemade annealer which was ok but never got real confidence. Always used temp crayons.

Just purchased a Bench Source annealer which is a pricey unit but WOW, does this device work well. What it confirmed was that temp and visual change ARE NOT RELATED.

The only real way to know what the temp reached is with a indicator like Templiac or similar temp changing indicators (I prefer crayons that flash off). Using the discoloration on the case body is not good as it can vary from brand to brand.

Some cases change colour dramatically, some you can't really tell they were ever annealed but both experienced the same peak temp and duration.

You can't just go by time in flame either as alloys vary so time needed to reach proper temper will vary from brand to brand and even lot to lot. I have one brand of brass that is taking approx. 4.5secs. Another a full second longer.

The flame temp is so high that it takes a fraction of a second to go too hot. When you use a proper annealing machine, you can control that exposure to a tenth of a second.

If you feel that annealing should be a part of your loading regiment, do it right cause it is very easy to do it wrong and that can lead to a whole world of headaches as you chase varying neck tension.

Jerry

Jerry your just a copy cat

http://www.canadiangunnutz.com/forum/showthread.php/957356-Case-Annealers?p=9077370#post9077370

Post #49 I new you would buy one sooner or later it's just so precision.

I do disagree with the crayons though I like the liquid better as it is applied before not after the fact and is more difficult to place inside the neck. It can be used as quite well as a indicator once the case leaves the flame but is limited in its use. I use them when I weld but much prefer the liquid for annealing.