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Stress relieving (drawing back) the neck/shoulder area

AlNyhus

Silver $$ Contributor
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.
5rSfp0bl.jpg

-Same case post full length sizing. Die was set for 1.160".
zjPh9nbl.jpg

- Meeks 'ring of fire' tool, a cake pan with 3/8" of water, propane bottle and 50 willing participants.
ir9a5KDl.jpg

-In process. 350 degrees for 12 seconds.
07fASwll.jpg

-Done with the draw back.
xNVE2XVl.jpg

-Blew the cases dry with the air compressor, then swished 'em in some Coleman Camp Fuel.
FLTW7AWl.jpg

-It's going to be 90 here today, so set 'em on the deck of my wife's Zen Den to warm up.
IbRkBt1l.jpg

-Ran this one through the full length die. Now the shoulder stays put @ 1.160" and shoulder diameter also stays reduced.
9IMMQktl.jpg


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

Good shootin' :) -Al
 
Last edited:
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.
5rSfp0bl.jpg

-Same case post full length sizing (primer removed, obviously). Die is set for 1.160".
zjPh9nbl.jpg

- Meeks 'ring of fire' tool, a cake pan with 3/8" of water, propane bottle and 50 willing participants.
ir9a5KDl.jpg

-In process. 350 degrees for 12 seconds.
07fASwll.jpg

-Done with the draw back.
xNVE2XVl.jpg

-Blew the cases dry with the air compressor, them swished 'em in some Coleman Camp Fire fuel.
FLTW7AWl.jpg

-It's going to be 90 here today, so set 'em out on the deck of my wife's Zen Den to warm up.
IbRkBt1l.jpg

-Ran this one through the full length die. Now the shoulder stays put @ 1.160" andshoulder diameter also stays reduced.
9IMMQktl.jpg


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
 
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.
 
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
 
Will, if you make one and want to go longer at lower temps, a restrictor orifice works well. -Al
 
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
 
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.
5rSfp0bl.jpg

-Same case post full length sizing. Die was set for 1.160".
zjPh9nbl.jpg

- Meeks 'ring of fire' tool, a cake pan with 3/8" of water, propane bottle and 50 willing participants.
ir9a5KDl.jpg

-In process. 350 degrees for 12 seconds.
07fASwll.jpg

-Done with the draw back.
xNVE2XVl.jpg

-Blew the cases dry with the air compressor, then swished 'em in some Coleman Camp Fuel.
FLTW7AWl.jpg

-It's going to be 90 here today, so set 'em on the deck of my wife's Zen Den to warm up.
IbRkBt1l.jpg

-Ran this one through the full length die. Now the shoulder stays put @ 1.160" and shoulder diameter also stays reduced.
9IMMQktl.jpg


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
 
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
 
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.;)
 

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