Stress relieving (drawing back) the neck/shoulder area

[AlNyhus]

FWIW, here's a simple way I've used for a long time to treat the neck/shoulder area.

-30BR cases fired 7 times, sized in a f.l. bushing die each firing. Primers removed prior to measurement.

-Same case post full length sizing. Die was set for 1.160".

- Meeks 'ring of fire' tool, a cake pan with 3/8" of water, propane bottle and 50 willing participants.

-In process. 350 degrees for 12 seconds.

-Done with the draw back.

-Blew the cases dry with the air compressor, then swished 'em in some Coleman Camp Fuel.

-It's going to be 90 here today, so set 'em on the deck of my wife's Zen Den to warm up.

-Ran this one through the full length die. Now the shoulder stays put @ 1.160" and shoulder diameter also stays reduced.

For what it's worth......

Good shootin' -Al

 

[SKWERLZ]

Classic song about eating too much habanero salsa on taco Tuesday.

 

[RBT321]

Curious; how hot are you getting those?

Are you doing a full 1050-1100°F anneal?

 

[hoz53]

FWIW, here's a simple way I've used for a long time to treat the neck/shoulder area.

-30BR cases fired 7 times, sized in a f.l. bushing die each firing.

-Same case post full length sizing (primer removed, obviously). Die is set for 1.160".

- Meeks 'ring of fire' tool, a cake pan with 3/8" of water, propane bottle and 50 willing participants.

-In process. 350 degrees for 12 seconds.

-Done with the draw back.

-Blew the cases dry with the air compressor, them swished 'em in some Coleman Camp Fire fuel.

-It's going to be 90 here today, so set 'em out on the deck of my wife's Zen Den to warm up.

-Ran this one through the full length die. Now the shoulder stays put @ 1.160" andshoulder diameter also stays reduced.

For what it's worth......

Good shootin' -Al

is the fuel just for cleaning? way back when —when my expander ball got hard to pull through cases i used the time honored method and stood them in a cake pan with water half way up the case and heated them till the neck got red hot with a propane torch then tipped them over in water to cool. it worked- much easier. sizing. but i always wondered if it weakened the case and a neck was about to separate! never happened - looks like the meeks ring gets them real hot and i guess that doesnt hurt them any?
that must be the forerunner of amp—- lol. thanks for sharing AL

 

[AlNyhus]

Curious; how hot are you getting those?

Are you doing a full 1050-1100°F anneal?

350 degrees for 12 seconds.

True 'annealing' (very high temps) actually removes some of the characterists that are desireable in cartridge brass.

Good shootin' -Al

 

[AlNyhus]

Is the fuel just for cleaning?

Not so much cleaning but a way to disperse any moisture left in the cases. 99% alcohol also works well.

Probably a little overkill but it only takes a minute.

 

[hoz53]

Not so much cleaning but a way to disperse any moisture left in the cases. 99% alcohol also works well.

Probably a little overkill but it only takes a minute.

ic thanks

 

[Straightshooter1]

350 degrees for 12 seconds.

True 'annealing' (very high temps) actually removes some of the characterists that are desireable in cartridge brass.

Good shootin' -Al

What would be "the characteristics that are desirable"?

 

[AlNyhus]

What would be "the characteristics that are desirable"?

Brass needs to retain enough 'stress' to contract after being fired and for neck tension. -Al

 

[MagnumW]

350 degrees for 12 seconds.

True 'annealing' (very high temps) actually removes some of the characterists that are desireable in cartridge brass.

Good shootin' -Al

350 degrees? How do you know? What color a necks in darkened room - barely dull red? Before I got an Amp I did mine with torch and spun them held in a socket in my cordless drill. Took less than 5 seconds to anneal.

 

[JMayo]

We can play with our toys any way we want !

 

[AlNyhus]

350 degrees? How do you know? What color a necks in darkened room - barely dull red?

Initially, I used Tempilaq (inside a case neck). Now I use an infared temp gun. Couldn't say about any sort of color as I use temp and time.

Good shootin' -Al

 

[foxguy]

Annealing, always interesting. Thanks for sharing.

 

[AlNyhus]

Annealing, always interesting. Thanks for sharing.

It's the most misunderstood and misused term in hand loading. -Al

 

[Will Henry]

I like your ring burner. I like the torch and socket method too. When I was a kid, I read about annealing and the necessity for it. I closed myself in a dark room with a pan of water and a torch and had at my 303 brass. I was bothered by the difficulty of achieving a consistent color all around. I needed to make one of those ring burners! I was 14.
A friend of mine uses a salt bath and seems happy with it. Thanks for posting, Al. WH

 

[AlNyhus]

Will, if you make one and want to go longer at lower temps, a restrictor orifice works well. -Al

 

[AlNyhus]

For anyone wanting to make one of these tools up, keep in mind that MAPP gas (now known as MAP-Pro) burns hotter than propane. Even though the MAP-Pro flame is only about 130 degrees higher than propane, the difference in time-to-temp when drawing back cases is pretty significant.

Just a heads up.... -Al

 

[boltfluter]

FWIW, here's a simple way I've used for a long time to treat the neck/shoulder area.

-30BR cases fired 7 times, sized in a f.l. bushing die each firing. Primers removed prior to measurement.

-Same case post full length sizing. Die was set for 1.160".

- Meeks 'ring of fire' tool, a cake pan with 3/8" of water, propane bottle and 50 willing participants.

-In process. 350 degrees for 12 seconds.

-Done with the draw back.

-Blew the cases dry with the air compressor, then swished 'em in some Coleman Camp Fuel.

-It's going to be 90 here today, so set 'em on the deck of my wife's Zen Den to warm up.

-Ran this one through the full length die. Now the shoulder stays put @ 1.160" and shoulder diameter also stays reduced.

For what it's worth......

Good shootin' -Al

Very interesting Al. Do you do this on every firing or just on an as needed basis? Thanks bud.
Paul

 

[AlNyhus]

Very interesting Al. Do you do this on every firing or just on an as needed basis? Thanks bud.
Paul

Paul, the 30BR cases get touched up every 7 firings. I also do this after making new cases...just prior to full length sizing and firing for the first time.

Good shootin' -Al

 

[TRSR8]

Got the best method going. In our BR reloading room at the club, buddy has a burst fire induction unit, I use his, 20 cases, 30 seconds.