Like the .223 ammo above: was it in a container in the middle of the desert for decades? while striving to know something about its provenance. Wipe the cleaning paste and verdigris stains away with a clean terrycloth dampened with plain water. Tarnished brass can leave green stains on leather. Apply the paste with an old toothbrush. 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. Leather items trimmed with brass hardware have a classic look about them. _gaq.push(['_setDomainName', '.accurateshooter.com']);
I would until then have agreed that old ammo is OK, but obviously that’s not always true. Safe corrosion will look reddish, black to brown or green to blue.
Safe corrosion will occur if the brass has been kept clean and dry. No discoloring of the OD web material but the corrosion and corrosion stains are gone.
So I pulled the bullets using a hammer-type impact (inertial) bullet puller. Discussion in 'Carry Issues' started by smoke, Jan 10, 2018. ", 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. You might try nickle plated brass. I was breaking in a new barrel so just shooting any old ammo that I had. Some had actual chunks of it, others, the entire interior wall of the case was coated with green fuzz.
Allow the baking soda and vinegar paste to sit on the verdigris stain for about five minutes. To check the internal condition, the bullet was removed using an impact (inertial) bullet puller.
Here’s a close-up of the same .300 Winchester Magnum hand-load from 1993 showing serious corrosion inside the neck. If you have old ammo, it wouldn’t hurt to pull one bullet to see what’s going on inside. Commentary by Tactical Rifle Shooters Polish brass at least once a year to prevent it from tarnishing and to keep verdigris from developing. Scrub gently, working the paste into the leather's pores. I pulled bullets from the remaining 15 or so rounds and found very similar green corrosion inside. 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. Here serious internal corrosion was discovered. ). Membership is free and we welcome all types of shooters, whether you're a novice or a pro. When copper reacts with oxygen, it oxidizes and generates a greenish-blue layer that protects the metal from further corrosion.
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. In the process the case-neck sheared off. Here’s a cautionary tale from the Tactical Rifle Shooters Facebook group.
The mixture will foam for a bit. Verdigris stains can be stubborn but are removable with a little gentle persistence. ga.src = ('https:' == document.location.protocol ? What I found was verdigris-like corrosion inside the necks, with one neck completely separating. The 10mm had exhibited what looked like electrolytic corrosion along the case length and a little toward the bullet. Late Season Reminder — Replace Your Safe’s Keypad Battery. Repeat step 2 if any verdigris remains. Is there any way to stop it?
In the .44 there was the same brown streaks along the casing and toward the bullet. Hand Clamp Bullet Puller — Grip-N-Pull Pros and Cons, Reloading TIP: Use Shell Holder with Impact Puller, How to Use Press-Mounted Bullet-Pulling Tools, Press-Mounted Bullet Pullers — How to Use Them, New Hi-Vel and Lead-Free Rimfire Ammo from Winchester, Speer Releases Handloading Manual Number 15, Varminter.com Field Tests New Lead Free 17 WSM Ammo, Advanced New Area 419 ZERO 9-Station Turret Press, SunDay GunDay: .284 Shehane Team USA Raffle Prize Rifle, Sunday GunDay: Glen Zediker 1959 – 2020, In Memoriam, Barney Lawton, Action-Builder and Barrel-Maker, Loses Fight with Cancer, BYOB — Build Your Own Bench for Reloading — Free Plans. I know it's reaction between brass and the leather. That acid is reacting on the brass much as acid rain oxidized the copper on the Statue of Liberty and turned it green. Above is one of the 26-year-old reloaded .300 WinMag cartridges which had failed to fire. Not really; acids are used in tanning leather.
I would until then have agreed that old ammo is OK, but obviously that’s not always true. Tarnished brass can leave green stains on leather. Jan 10, 2018 #2 . With over 40 years in competitive shooting, I’ve also had boxes of factory ammo that were 30+ years old and all worked flawlessly. Using supplies from home, you can remove verdigris stains from leather without damaging the material.
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. 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. Above is a 26-year-old hand-loaded .300 Winchester Magnum case that failed to fire. 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. Fresh, recent ammo is preferable, certainly.
For loaded ammo I use the 0000 steel wool. I clean it off, clean the leather, put conditioner on it, put new ammo in and it just keeps coming back. In the .357, there was some brown case streaks and green brass corrosion toward the case head (as well as spots on the bullet). Rub leather balm into the leather where you treated the verdigris stain to help condition the area now that it's clean. The subject often comes up as to whether it is safe to shoot old ammunition. 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. This ammo is mil-spec and difficult to find. After the misfire, the shooter used an inertial (impact) bullet puller to pull the bullet. Baking soda and vinegar together cause a chemical reaction which causes the solution to foam. 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. Note the verdigris-like corrosion and crack in neck. SMART TIP: If you have old ammunition, pull one bullet to see what’s going on inside. Unlock additional features, and fewer ads while browsing.
smoke, Jan 10, 2018. smoke, Jan 10, 2018. ALL Bulletin content is copyrighted, © 2020 AccurateShooter.com. Share the post "The Hazards of Old Ammo — Watch Out for Internal Corrosion!
It will take longer, but I have seen it also oxidize. One reason for this could be that dissimilar metals (copper and brass) can set up a reaction resulting in corrosion. 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.
Every bullet is precision manufactured so you get high performance. This green stuff is a chemical called verdigris that develops from moisture on the metal that comes in contact with the leather.
She has been a writer since 1996, specializing in business, fitness and education. Dry the leather with a clean cotton terrycloth, removing all surface traces of liquid. Use equal parts of lemon juice and salt to tackle verdigris stains. Mary Ylisela is a former teacher with a Bachelor of Arts in elementary education and mathematics. _gaq.push(['_trackPageview']); One thing we often don’t know about old ammo is how it has been stored. The unique green tip epitomizes the famous and well regarded Federal designs and engineering advancements. This green stuff is a chemical called verdigris that develops from moisture on the metal that comes in … Consider upgrading your membership for less than a box of bullets! var _gaq = _gaq || ; This combination of ingredients creates a mild acetic acid that helps to safely remove the verdigris from the leather. Scrub mildly, and wipe the lemon juice off right away, rather than allow it to sit so that it doesn't bleach the leather. var s = document.getElementsByTagName('script'); s.parentNode.insertBefore(ga, s); It takes the corrosion right off it. (You must log in or sign up to reply here. Come for the info, stay and make some friends.. We work hard to bring the best Glock Forum! Why do brass, bronze and copper turn green? _gaq.push(['_setAccount', 'UA-6323545-2']); I saw something similar last summer with some mid-seventies Remington UMC .223, 55 FMJ ammo.
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