Ruger Forum banner

1 - 20 of 25 Posts

·
Registered
Joined
·
1,115 Posts
I have some powders I have had for 30+ years and are still good. Bought a can of H110 at Walmart in 1976 (back then the price tag had the date printed on it ). I loaded some .357 mag loads and used about 1/4 can. then decided I liked Winchester 296 better. A few months ago a buddy wanted me to load some 41 mag for him , just some mid range plinking loads . I pulled the H110 down wiped the dust off, opened opened the can , looks good , smells good . Loaded a couple hundred (all the brass he had ) fired off a few . Works great .

Like said above if you keep it cool and dry and a closed container it should be fine but smell it first should not have a bitter or acid smell ..
 

·
Registered
Joined
·
483 Posts
There are reports of guys in the sandbox running 50BMG ammo in-theater with 1940s headstamps. I do not believe the military pulled down the ammo, re-sized and re-used the cases with new powder, so I'd say the powder life is pretty good. ;)
 

·
Banned
Joined
·
2,292 Posts
I have some powders I have had for 30+ years and are still good. Bought a can of H110 at Walmart in 1976 (back then the price tag had the date printed on it ). I loaded some .357 mag loads and used about 1/4 can. then decided I liked Winchester 296 better. A few months ago a buddy wanted me to load some 41 mag for him , just some mid range plinking loads . I pulled the H110 down wiped the dust off, opened opened the can , looks good , smells good . Loaded a couple hundred (all the brass he had ) fired off a few . Works great .

Like said above if you keep it cool and dry and a closed container it should be fine but smell it first should not have a bitter or acid smell ..
Not sure about H110 from 1976, but H110 and Win.296 are one in the same just different lables.:D
 

·
Registered
Joined
·
7,608 Posts
I'm glad to read this. I knew it had a long shelf life but wasn't sure how long. I have allot of old powder that has to be over 30 years old. Thanks for the info.
I was shooting 45 ACP reloads a couple weeks ago in my SR1911 I loaded in 1989.They shot like I had just loaded them.
 

·
Banned
Joined
·
2,292 Posts
I'm glad to read this. I knew it had a long shelf life but wasn't sure how long. I have allot of old powder that has to be over 30 years old. Thanks for the info.
I was shooting 45 ACP reloads a couple weeks ago in my SR1911 I loaded in 1989.They shot like I had just loaded them.
Load a few up and give them a try, long as the powder hasn't discolored or not looking right it will work just fine, my kid buys old WWII surplus rounds for one of his old guns and they all fire.
 

·
Registered
Joined
·
7,608 Posts
Load a few up and give them a try, long as the powder hasn't discolored or not looking right it will work just fine, my kid buys old WWII surplus rounds for one of his old guns and they all fire.
That's what I plan on doing. I haven't reloaded in years. I loaded allot of reloads years ago then didn't have a place to shoot until recently.Thanks
 

·
Registered
Joined
·
730 Posts
I called Hodgdon on H-110 ,they still have batches stored that`s 90 yrs & still A-OK !!

I`ve had some go bad ,but completely my fault , I`ve found that consistent temps (enuff to prevent condensation) is very important.
 

·
Registered
Joined
·
1,130 Posts
Friends i load with are still loading shotgun shells and .38 rounds with 8lb kegs of Red Dot they bought 30 years ago and i have to say look like they were stored none too careful, but still go bang every time!
 

·
Retired Moderator & Gunsmith
Joined
·
16,096 Posts
MidLife, If powder is stored properly (cool and dry, not exposed to air or sunlight) it will likely out live you. Heat and humidity are the biggest enemies but if powder is stored in sealed factory containers where it isn't exposed directly to air .... humidity and sunlight are not factors. The worst thing you can do is to leave powder sitting in the plastic hopper of your powder measure or a powder trickler for more than a few hours. Powder will draw moisture from the air plus chemicals in the plastic will contaminate chemicals in the powder. Humidity levels in factory sealed containers are less than 10% so if "loose" powder is exposed to normal house humidity, it doesn't take long to start deteriorating. If you see "stains" in your clear plastic powder hopper that won't wipe out with a cloth, it means you probably left the powder in it too long and there was a chemical reaction that changed the properties of the powder.

Single base powders have a longer shelf life than double base powders (ie Unique) and are less prone to aging from heat. Powder stored at normal room temperatures take a long time to age, however at temperatures of 100 deg F or more, it doesn't take but a few weeks for deterioration to start.

Back in the 70's, Sierra Army Depot released tests done on military 45 ACP ammo loaded at Redfield Arsenal (Pine Bluff, AR) in 1942 (headstamp RA-42) This ammo was loaded with 5.9gr of canister grade Unique powder. After 10 years in controlled climate storage, there was no notable change in velocity or duds/squibs. After 20 years in controlled storage, reliability was unchanged but velocity had dropped by 2%. At the 30 year mark, duds/squibs per thousand increased and velocity dropped by 10%. Prior to these tests, the Depots would destroy or sell Mil-Surp ammo that was stored 10 years after the headstamp's date of manufacturer. I'm not sure but I think storage time was extended to 20 years for most small arms ammo. Unique powder, being double based, is probably a "worst case scenario".

In recent years, all powder manufacturers went from foil lined cardboard or metal cans to specially formulated plastic containers that do not chemically react with powder. Assuming the factory plastic containers remain sealed and stored at room temperature, any smokeless powder should last at least 30 years ... probably much longer for single base powders. Once a powder jar is opened and exposed to air, it will deteriorate much faster and the rate of deterioration would again depend on heat, humidity, and exposure to light. Powder also deteriorates much faster if it is stored in something other than the factory container, such as TupperWare, other plastics, metal, and especially clear glass jars. Deterioration affects the powder's burn rate. When powders deteriorate, they tend to burn slower, which will reduce chamber pressure and velocity. However, some powders do just the opposite where burn rates are faster, thus increasing chamber pressure. This could get dangerous. Just because an old powder goes bang ... it doesn't mean it has maintained the intended burn rate.

If you "inherit" powder that came in a cardboard, metal, or non-original container or if you are unsure how it was stored, it's best to dispose of it ..... it's just not worth the risk to save a few bucks. Because smokeless powders are very rich in nitrogen, they make excellent fertilizer in gardens or yards .... just make sure you spread it thin.
 

·
Registered
Joined
·
264 Posts
My Bullseye, Red Dot, Unique, and Herco are still just same as they were 30 years ago when I bought them. YMMV.
 

·
Registered
Joined
·
757 Posts
Gun Powder Storage

I've had some Unique gunpowder that was nearly 30 years old and still it worked just fine. I believe the main thing I would recommend is to store gun powder, primers, and ammunition in seperate "Ammo Cans" with an intact rubber O ring. Keep in a dry cool environment and personally I have never had a problem.

I had a relative that didn't store his ammunition in ammo cans. He stored them outside on a shelf in the storage shed. When I was offered a box of this ammo, during an afternoon family reunion, some of ammunition wouldn't fire, and I was lead to believe it was humidity/moisture problem. I eventually took this remaining box of ammuition and pulled the remaining bullets and the gunpowder was moist inside. Good lesson for my son to witness during that afternoon family reunion.
 

·
Banned
Joined
·
3,158 Posts
I'm still using some WW II surplus IMR 4831. It was in 25 lb kegs that were rusting from the outside. Back in the 60's my dad transferred it to different containers and it smells as fresh as new powder. Phil Sharpe did tests back in the 30's where he stored powder loose in water for months then he would dry it out and use it with no problems whatsoever.
 

·
Registered
Joined
·
354 Posts
I recently finished off 3 different powders from the early 80's, no problems with any of it.
As a side, another common question is how long is reloaded ammo good for.
Again, recently, I finished shooting off a ton of ammo that my Father-in-law loader back in the 50's and 60's. Again, no problems at all.
 

·
Registered
Joined
·
28 Posts
I have an unopened 8 lb Plastic Jug container of AA 2230-S Powder. That is marked for the loading of Rem 223 & Win 308 Cartridges. The top of the plastic jug, Still has the seal on it , That has to be peeled off to use the Powder.? The Jug of powder has been stored in my Home, In a room that is cool & AC throughout the summer time & it's cool in the room even in the winter time.? What iv'e been reading on powder storage.? Seems like this powder is good to use. I will not break the top seal to smell it until I am ready to use it to reload. To keep it fresh. The original carton that the powder came in from AA Powder Co. is marked with the Year of 1991 on it.?
 
1 - 20 of 25 Posts
Top