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Posted: 12/28/2010 9:04:44 PM EDT
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I have a slew of twice and thrice fired Lake City .308 brass that I have been using to load the M-118LR clones that run best in my precision stick. I have begun to be concerned that these brass may be becomming 'work hardened' and want to begin annealing it every couple or three reloads. I'm not sure what the optimum annealing temperature is for brass cases. Any help? Additionally, does anyone use 'Tempilac G' for indication of correct temperature? http://www.tempil.com/closeup.asp?cid=25&pid=27&theme=0 Thanks. |
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IIRC, the correct temp is around 750, but if you go over 800, you ruin the brass. Most people are using tempilac to determine temperature. I tried annealing a while back using a cordless screwdriver with a socket to hold/turn the brass and a propane torch. It's not that difficult, but it is easy to over or under anneal the brass. I'm looking at building or buying a machine which should make it much easier. |
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Quoted: IIRC, the correct temp is around 750, but if you go over 800, you ruin the brass. Most people are using tempilac to determine temperature. I tried annealing a while back using a cordless screwdriver with a socket to hold/turn the brass and a propane torch. It's not that difficult, but it is easy to over or under anneal the brass. I'm looking at building or buying a machine which should make it much easier. Are the machines spendy? Gotta link, maybe?  |
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All of the machines I've seen were $400+. There are several. Scroll to the bottom: http://www.kenlightmfg.com/products.html http://bench-source.com/id81.html There are also a couple of others that I can't seem to find links for. Contact info below the vid: http://www.youtube.com/watch?v=GxXm1RNWjC4 http://www.annealingmachines.com/ |
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Quoted:
Quoted:
IIRC, the correct temp is around 750, but if you go over 800, you ruin the brass. Most people are using tempilac to determine temperature. I tried annealing a while back using a cordless screwdriver with a socket to hold/turn the brass and a propane torch. It's not that difficult, but it is easy to over or under anneal the brass. I'm looking at building or buying a machine which should make it much easier. Are the machines spendy? Gotta link, maybe?
Are you handy? Are you good at scavenging parts and materials for free and making them work together? I built my own machine for less than $25 in materials. The most expensive part was a $12 rheostat to control annealing time. |
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Quoted: Quoted: Quoted: IIRC, the correct temp is around 750, but if you go over 800, you ruin the brass. Most people are using tempilac to determine temperature. I tried annealing a while back using a cordless screwdriver with a socket to hold/turn the brass and a propane torch. It's not that difficult, but it is easy to over or under anneal the brass. I'm looking at building or buying a machine which should make it much easier. Are the machines spendy? Gotta link, maybe? Are you handy? Are you good at scavenging parts and materials for free and making them work together? I built my own machine for less than $25 in materials. The most expensive part was a $12 rheostat to control annealing time. Actually....semi.  I checked out the links posted above and it got me to thinking it wouldn't be too damned hard to engineer a rotary table like several of the examples using a stepping motor and controler. Those designs I saw were pretty simple and just used a cam to advance the table. Who'd of thunk it? Thanks for the links, machinisttx. |
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Quoted: Quoted: Quoted: IIRC, the correct temp is around 750, but if you go over 800, you ruin the brass. Most people are using tempilac to determine temperature. I tried annealing a while back using a cordless screwdriver with a socket to hold/turn the brass and a propane torch. It's not that difficult, but it is easy to over or under anneal the brass. I'm looking at building or buying a machine which should make it much easier. Are the machines spendy? Gotta link, maybe? Are you handy? Are you good at scavenging parts and materials for free and making them work together? I built my own machine for less than $25 in materials. The most expensive part was a $12 rheostat to control annealing time. Got pics?  |
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Quoted:
Quoted:
Quoted:
Quoted:
IIRC, the correct temp is around 750, but if you go over 800, you ruin the brass. Most people are using tempilac to determine temperature. I tried annealing a while back using a cordless screwdriver with a socket to hold/turn the brass and a propane torch. It's not that difficult, but it is easy to over or under anneal the brass. I'm looking at building or buying a machine which should make it much easier. Are the machines spendy? Gotta link, maybe?
Are you handy? Are you good at scavenging parts and materials for free and making them work together? I built my own machine for less than $25 in materials. The most expensive part was a $12 rheostat to control annealing time. Got pics?
+1, I would like to see that, about how long do the cases stay in the flame on your machine? |
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