Any metal that contains a high amount of copper can turn green. In the .44 there was the same brown streaks along the casing and toward the bullet. Every time I do try to use it, the top bullet in each mag has green mold on it. (This was a fail-to-fire.) She has been a writer since 1996, specializing in business, fitness and education. It takes the corrosion right off it. Some had actual chunks of it, others, the entire interior wall of the case was coated with green fuzz. Leather items trimmed with brass hardware have a classic look about them. No discoloring of the OD web material but the corrosion and corrosion stains are gone. (You must log in or sign up to reply here. I would until then have agreed that old ammo is OK, but obviously that’s not always true. I pulled bullets from the remaining 15 or so rounds and found very similar green corrosion inside. The bullet makes use of a round bullet nostril so as that it would want to be loaded right into a tube mag with a nostril touching the bottom of the cartridge ahead contained in the tube. The unique green tip epitomizes the famous and well regarded Federal designs and engineering advancements. In the process the case-neck sheared off. var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); The mixture will foam for a bit. In the .357, there was some brown case streaks and green brass corrosion toward the case head (as well as spots on the bullet). Combine baking soda and white vinegar in a small bowl to create a paste the consistency of ketchup. Verdigris stains can be stubborn but are removable with a little gentle persistence. If you’ve ever kept a brass case in a leather cartridge holder, you’ve seen the nasty green corrosion, and a nickel case avoids all that mess. Above is a 26-year-old hand-loaded .300 Winchester Magnum case that failed to fire. Prior to teaching, Ylisela worked as a certified fitness instructor and a small-business owner. That acid is reacting on the brass much as acid rain oxidized the copper on the Statue of Liberty and turned it green. Mary Ylisela is a former teacher with a Bachelor of Arts in elementary education and mathematics. smoke, Jan 10, 2018. smoke, Jan 10, 2018. Membership is free and we welcome all types of shooters, whether you're a novice or a pro. I know it's reaction between brass and the leather. To check the internal condition, the bullet was removed using an impact (inertial) bullet puller. You might try nickle plated brass. I was breaking in a new barrel so just shooting any old ammo that I had. After the misfire, the shooter used an inertial (impact) bullet puller to pull the bullet. One thing we often don’t know about old ammo is how it has been stored. Like the .223 ammo above: was it in a container in the middle of the desert for decades? Scrub mildly, and wipe the lemon juice off right away, rather than allow it to sit so that it doesn't bleach the leather. SMART TIP: If you have old ammunition, pull one bullet to see what’s going on inside. Safe corrosion will look reddish, black to brown or green to blue. Discussion in 'Carry Issues' started by smoke, Jan 10, 2018. This green stuff is a chemical called verdigris that develops from moisture on the metal that comes in … Baking soda and vinegar together cause a chemical reaction which causes the solution to foam. I clean it off, clean the leather, put conditioner on it, put new ammo in and it just keeps coming back. If you've inherited or purchased an older leather item, you may have found green stuff where the brass is in contact with the leather. So I pulled the bullets using a hammer-type impact (inertial) bullet puller. Not really; acids are used in tanning leather. _gaq.push(['_trackPageview']); Scrub gently, working the paste into the leather's pores. Unlock additional features, and fewer ads while browsing. var _gaq = _gaq || []; I saw something similar last summer with some mid-seventies Remington UMC .223, 55 FMJ ammo. Natural Handyman: Removing Mineral Deposits, Vintage Jewelry Lane: Verdigris: The Green Gunk No One Wants to See. Late Season Reminder — Replace Your Safe’s Keypad Battery. Here’s a close-up of the same .300 Winchester Magnum hand-load from 1993 showing serious corrosion inside the neck. Apply the paste with an old toothbrush. Of the 20 rounds, 15 shot perfectly, three had a fraction of a second hang-fire, and two didn’t shoot at all. var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; The 10mm had exhibited what looked like electrolytic corrosion along the case length and a little toward the bullet. If it is brownish or black this will be due to oxidization of the copper which occurs when exposed to air; this a natural phenomenon and is non-destructive. When copper reacts with oxygen, it oxidizes and generates a greenish-blue layer that protects the metal from further corrosion. Fresh, recent ammo is preferable, certainly. 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; Jan 10, 2018 #2 . Come for the info, stay and make some friends.. We work hard to bring the best Glock Forum! Above is one of the 26-year-old reloaded .300 WinMag cartridges which had failed to fire. Commentary by Tactical Rifle Shooters On the outside the ammo looked brand new. Some had actual chunks of it, others, the entire interior wall of the case was coated with green fuzz. Was that the day the rats peed in the powder at the ammo factory and nobody noticed? Here’s a cautionary tale from the Tactical Rifle Shooters Facebook group. Here serious internal corrosion was discovered. (function() { One reason for this could be that dissimilar metals (copper and brass) can set up a reaction resulting in corrosion. This combination of ingredients creates a mild acetic acid that helps to safely remove the verdigris from the leather. Polish brass at least once a year to prevent it from tarnishing and to keep verdigris from developing. If you have old ammo, it wouldn’t hurt to pull one bullet to see what’s going on inside. while striving to know something about its provenance. Consider upgrading your membership for less than a box of bullets! On the outside the ammo looked brand new. With over 40 years in competitive shooting, I’ve also had boxes of factory ammo that were 30+ years old and all worked flawlessly. Safe corrosion will occur if the brass has been kept clean and dry. It will take longer, but I have seen it also oxidize. What I found was verdigris-like corrosion inside the necks, with one neck completely separating. Like I said, this is the first time I’ve seen this, but will definitely be more aware when shooting old hand-loads in the future. ). Some residual acid cannot be washed out and remains in the leather. Use equal parts of lemon juice and salt to tackle verdigris stains. I would until then have agreed that old ammo is OK, but obviously that’s not always true. I also cleaned up a GI .45 magazine pouch that had the green stuff stained around the snaps. Tarnished brass can leave green stains on leather. Every bullet is precision manufactured so you get high performance. The bullet structure makes it a mid variety round (to about 2 hundred yards) because the rounded tip loses velocity very straight away vs a pointed bullet. Glock Talk is the #1 site to discuss the world’s most popular pistol, chat about firearms, accessories and more. All of these metals contain copper. Dry the leather with a clean cotton terrycloth, removing all surface traces of liquid. Historically my answer has always been yes, since over the years I have shot military surplus ammo dating back to World War II (1939-1945) and never had a problem. The subject often comes up as to whether it is safe to shoot old ammunition. ALL Bulletin content is copyrighted, © 2020 AccurateShooter.com. Why do brass, bronze and copper turn green? Rub leather balm into the leather where you treated the verdigris stain to help condition the area now that it's clean. But I had an interesting experience this week shooting some .300 Winchester Magnum (WinMag) that I had loaded for competition with Reloder 22 back in 1993. Allow the baking soda and vinegar paste to sit on the verdigris stain for about five minutes. I will continue to shoot older and surplus ammo but…. For loaded ammo I use the 0000 steel wool. Using supplies from home, you can remove verdigris stains from leather without damaging the material. I tumbled a bunch of ammo from new, all the way back to 40's and 50's 7.92 (8mm) ammo, 30.06, 7.62X51, 54R, and even included a dozen 50BMG rounds. The shooter disappeared in a cloud of smoke; when I examined the gun, the case head had ruptured. This ammo is mil-spec and difficult to find. Wipe the cleaning paste and verdigris stains away with a clean terrycloth dampened with plain water. ", Tags: 300 Win Mag, 300 Winchester Magnum, Case Corrosion, Corrosion, Old Ammunition, Vintage Ammo. CREDIT Tactical Rifle Shooters Facebook Group for this Ammo Tech Tip and photos. Is there any way to stop it? Repeat step 2 if any verdigris remains. Tarnished brass can leave green stains on leather. _gaq.push(['_setDomainName', '.accurateshooter.com']); ga.src = ('https:' == document.location.protocol ? You may not reproduce original text or photos without advanced permission in writing. It had even removed the green stains from the surrounding web material. Federal XM855 Green Tip Ammunition 5.56mm 62 gr FMJ 3020 fps 1000/ct (Bulk) …Green Tip Centerfire Ammunition. As our membership continues to grow we look forward to reading your stories and learning from your experiences. The powder was Alliant Reloder 22. Share the post "The Hazards of Old Ammo — Watch Out for Internal Corrosion! This green stuff is a chemical called verdigris that develops from moisture on the metal that comes in contact with the leather. })(); To comment on a post, click Post Title or "Comment" Link. Note the verdigris-like corrosion and crack in neck. 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