Powder for 50cal

[Cosine26]

I believe that I indicated in my first posting that I was talking about 4831 released by Hodgdon which he had purchased just after WWII. We used to buy it in 100# kegs for $50.00. When it arrived, we would bring our own containers and divide it up. I used in 30-06 and 30 H&H. After the surplus powder was used up, I believe that Hodgdon and other manufacturers sold different versions which were similar to but not exactly the same as the surplus powder and that the various "4831's" differed slightly from manufacturer to manufacturer. I am not familiar with these 4831's as I never used them.
I have not fired an Oerlikon in about 70 years but as I remember it, the gun fired from an open bolt. It had a very strong spring and to cock the gun we used about a three foot lanyard with an "eye "on each end. You would elevate the gun to maximum elevation, slip one eye over a boss on the mount and the other to the cocking knob . The cocking knob was above the elevation pivot so that when the gun was raised to the horizontal the gun was cocked. It had a double loading stop that prevented a second round from trying to enter the chamber when there was one already there.
The drum magazine held 60 rounds and had a handle on the rear. To load, the lip on front of the magazine was engaged first, and the magazine was closed to the rear where it was latched. To reload, there was a spade type of magazine release that was operated by bringing your had forward to slap the release and letting it continue on to grab the released magazine by the handle. Using the handle , the magazine was removed and a new one loaded.
There was a version where the gun could be raised or lowered using a wheel to operate a hydraulic piston. The idea was to keep the gunners knees slightly bent. The problem was that during cold weather, only a gorilla could turn the crank.
The gunner strapped himself into to "U" shaped shoulder pieces and was strapped in. He had two handles. The trigger was a crank shape item on the right grip, pulling this to the rear fired the gun.
I doubt that 50 caliber ammo was loaded with 4831, but that's my opinion.
FWIW

[mmppres]

hi guys going to get the pics an info written on containers. these belong to a dear friend who closed his gun shop. there is over 100 pound of powder an dozen of containers of brass along with primers. i am supposed to move some of the personal items out of building for him over week end an will get pictures of these items. them they probably will be sold or traded

[browningautorifle]

Love the sideline info about the Oerlikon cannon Cosine. Never had it explained before. I've done lots with the .50 but never handled a 20mm.

[Bruce_in_Oz]

Some more reading:

exterior ballistics

*(In manuals or writings published before 1973, any mention of 4831 will refer to Hodgdon’s H4831. In older manuals, it was customary to list the powder simply as A4831” with no designation connecting it to the Hodgdon line. The reason for this is simple; prior to DuPont’s introduction of IMR 4831 in 1972, the surplus 4831 sold by Hodgdon was the only powder to carry this designation. Despite their similar nomenclature, these two powders (IMR 4831 and Hodgdon 4831) are not interchangeable and must not be confused. IMR 4831 is significantly faster burning than H4831, and may produce dangerous pressures if used with data developed for the latter.)

http://www.gd-otscanada.com/upload/F...ilitary(1).pdf

[browningautorifle]

Yes...and there's more than just those two.

[Bruce_in_Oz]

As they say in the classics:

"I just love 'industry standards';

There are so many to choose from!"

[mmppres]

hi guys tried to get pictures of powder but some reason pictures are real dark with the deal is 1500 cleaned sized casings. 5000 black tip heads an 1000 red tip heads. powder is marked winchester ball c. 50 cal ammo powder. this powder an casing an bullet heads were from demilled ammo. i do not have a firearm to use this so i am going to sell an split money with owner. like to sell it all to one person to make it easy

---------- Post added at 08:41 PM ---------- Previous post was at 08:40 PM ----------

http://i91.photobucket.com/albums/k2...ps8ad3c531.jpg

---------- Post added at 08:41 PM ---------- Previous post was at 08:41 PM ----------

[browningautorifle]

I suspect the black tip is armor piercing and the red tip is tracer. Better be sure you can sell those when the time comes...I think there may be some regulations in certain places...good luck with that.

[mmppres]

thanks jim
i would like to sell all to one person as that would be safest way. some one who has a rifearm to use it in. an reloads for it. the owner does not want big money for items maybe 2.00 for each empty an 5.00 a pound for powder.??? I tried to explane to him that this stuff is a speciality item an only few people would buy it.

[browningautorifle]

You'd be better placing an ad in the WTS section of this site...it should get more exposure there.