Iridescent cases???

This section is for reloading and ammunition only, all loads found in here are used strictly at your own risk, if in doubt ask again.
All handloading data posted on Full-Bore UK from 23/2/2021 must reference the published pressure tested data it was sourced from, posts without such verification will be removed.
Any existing data without such a reference should treated as suspect and not used.

Moderator: dromia

Forum rules
All handloading data posted on Full-Bore UK from 23/2/2021 must reference the published pressure tested data it was sourced from, posts without such verification will be removed.
Any existing data without such a reference should be treated as suspect and not used.

Use reloading information posted here at your own risk. This forum (http://www.full-bore.co.uk) is not responsible for any property damage or personal injury as a consequence of using reloading data posted here, the information is individual members findings and observations only. Always verify the load data and be absolutely sure your firearm can handle the load, especially older ones. If in doubt start low and work your way up.
Post Reply
Message
Author
User avatar
snayperskaya
Posts: 7234
Joined: Fri Oct 04, 2013 6:43 pm
Home club or Range: West Bank of the Volga.....
Location: West of The Urals
Contact:

Iridescent cases???

#1 Post by snayperskaya »

Just washed some cases and dryed them in the oven on a low heat for about 10 mins and they have an iridescent rainbow look to them!, is this common???.The cases weren't really hot when I took them out and they colded pretty quick, surely a domestic oven wouldn't get hot enough to anneal them or bugger them up?.
"The only real power comes out of a long rifle." - Joseph Stalin

Give a man a gun and he can rob a bank.....give a man a bank and he can rob the world!.

More than a vested interest in 7.62x54r!
User avatar
dromia
Site Admin
Posts: 20227
Joined: Sat Nov 06, 2010 4:57 am
Home club or Range: The Highlands of Scotland. Cycling Proficiency 1964. Felton & District rifle club. Teesdale Pistol and Rifle club.
Location: Sutherland and Co Durham
Contact:

Re: Iridescent cases???

#2 Post by dromia »

Oh yes it would.

Send it to me for disposal.

The HXP brass used to have that effect on the edge of the annealed area.

Again the temperatures are all relative to the make up of the brass, doubt they are buggered though.

Load them up and get someone else to try them out in their gun whilst you are away somewhere else.

Did they originally have depleted uranium cored bullets?
Image

Come on Bambi get some

Imperial Good Metric Bad
Analogue Good Digital Bad

Fecking stones

Real farmers don't need subsidies

Cow's farts matter!

For fine firearms and requisites visit

http://www.pukkabundhooks.com/
User avatar
snayperskaya
Posts: 7234
Joined: Fri Oct 04, 2013 6:43 pm
Home club or Range: West Bank of the Volga.....
Location: West of The Urals
Contact:

Re: Iridescent cases???

#3 Post by snayperskaya »

Just given one of the cases a good buff and the discolouration has come off and case is bright and shiny!, could it have been a reaction to the washing liquid I cleaned them with?......Anyone?
"The only real power comes out of a long rifle." - Joseph Stalin

Give a man a gun and he can rob a bank.....give a man a bank and he can rob the world!.

More than a vested interest in 7.62x54r!
User avatar
snayperskaya
Posts: 7234
Joined: Fri Oct 04, 2013 6:43 pm
Home club or Range: West Bank of the Volga.....
Location: West of The Urals
Contact:

Re: Iridescent cases???

#4 Post by snayperskaya »

dromia wrote:Oh yes it would.

Send it to me for disposal.

The HXP brass used to have that effect on the edge of the annealed area.

Again the temperatures are all relative to the make up of the brass, doubt they are buggered though.

Load them up and get someone else to try them out in their gun whilst you are away somewhere else.

Did they originally have depleted uranium cored bullets?
No, no depleted uranium rounds!.

So you think they would be OK?, it wasn't like they were in the oven for hours.
"The only real power comes out of a long rifle." - Joseph Stalin

Give a man a gun and he can rob a bank.....give a man a bank and he can rob the world!.

More than a vested interest in 7.62x54r!
1066
Full-Bore UK Supporter
Posts: 2254
Joined: Wed Aug 31, 2011 7:05 pm
Contact:

Re: Iridescent cases???

#5 Post by 1066 »

Annealing is factor of time and temperature - However, 10 minutes at say 150 F won't do any damage. Very little effect takes place below 600 F but you wouldn't want to leave it at that temperature for too long. The iridescent colouring is just natural oxidising.
TARGETMASTER
an altogether better trickler
www.targetmasteruk.com
User avatar
dromia
Site Admin
Posts: 20227
Joined: Sat Nov 06, 2010 4:57 am
Home club or Range: The Highlands of Scotland. Cycling Proficiency 1964. Felton & District rifle club. Teesdale Pistol and Rifle club.
Location: Sutherland and Co Durham
Contact:

Re: Iridescent cases???

#6 Post by dromia »

snayperskaya wrote:
So you think they would be OK?
Yes!
Image

Come on Bambi get some

Imperial Good Metric Bad
Analogue Good Digital Bad

Fecking stones

Real farmers don't need subsidies

Cow's farts matter!

For fine firearms and requisites visit

http://www.pukkabundhooks.com/
hitchphil
Posts: 911
Joined: Thu Jul 05, 2012 11:56 pm
Home club or Range: Bisley - Mostly
Contact:

Re: Iridescent cases???

#7 Post by hitchphil »

Gas mark 9 is about 220C brass starts to anneal at 400C. Reload them, sit down crack open another beer.

Its coppering corrosion to the surface, in the heat copper 1 oxide forms 1 gives redish tones copper 2 oxide forms over 300c & is black. Thin layers of oxides on the surface refract light & you get a spectrum rainbow effect.

Hopefully your washing liq does not have ammonia in it? but the salt will disassociate in water & form ions OH-& H+ that can promote attack on the surface. Poss best to use shampoo that is more neutral or car shampoo as a surfactant cleaner.

...... mind you i fill old socks & stick them in the washing mc with the rest of the nasty grundies etc on cycle 2 they come out gleaming :-) & the underwear! :run:
Quality control of Scottish Ethanol. & RDX/HMX

& my fav chemical is :-) 1,3,7-trimethylxanthine.......... used to kill frogs.... but widely consumed & in vast quantities by the French? Eh?
Post Reply

Who is online

Users browsing this forum: No registered users and 5 guests