DaveMachine
CGN Ultra frequent flyer
- Location
- That one place with a cowboy complex
Steel Case Ammo in your AR15
- Thread starter vancouverbc
- Start date
Why is that? I have a case of it I haven't shot yet, just wondering.
I think you misunderstood and accidentally agreed with me. What I said, in complete, is: "The AK has a banana mag because steel cases make extraction more difficult requiring much greater flank angles on the case than brass."
Meaning that the flank angles - that you call taper - requires the AK to have the curved mag it does.
Brass uses copper and tin and other alloying metals that were scarce in Russia necessitating the use of steel for cases. The steel does not make good cases - being the key takeaway - so they needed to have a greater taper so they would extract reliably. If the cartridge had been designed using brass, it would not have needed the large taper to extract.
This is fairly common knowledge in the industry.
"The cartridge itself consisted of a Berdan-primed, highly tapered (usually steel) case which seats the bullet and contains the powder charge. The taper makes it very easy to feed and extract the round, since there is little contact with the chamber walls until the round is fully seated. This taper is what causes the AK-47 to have distinctively curved magazines (helping to distinguish AK-47s from AK-74s, which feed from a much straighter magazine). While the bullet design has gone through a few redesigns, the cartridge itself remains largely unchanged." ht tps://en.wikipedia.org/wiki/7.62×39mm
Runningfool
CGN Ultra frequent flyer
- Location
- SW Ontario
DaveMachine
CGN Ultra frequent flyer
- Location
- That one place with a cowboy complex
My bad, posted without going through the whole thread.
In my defence, some people could stand to read it again.
In my defence, some people could stand to read it again.
My bad, posted without going through the whole thread.
In my defence, some people could stand to read it again.
I think you came across as a wise guy and got taken to school
DaveMachine
CGN Ultra frequent flyer
- Location
- That one place with a cowboy complex
I think you came across as a wise guy and got taken to school
At least I can use google.
Edit:
I've shot over 1000 rounds of 223 and a couple hundred of their 308 and not a single malfunction at all in my Tavor for 223 or my Mossberg MVP Patrol for 308, The accuracy is what it was made for, Hitting a guy in the chest on the battlefield so 4 inch grouping average at 100 yards good enough to hit the steel gongs. I wouldn't hesitate to buy more for my Tavor.
I'm no expert, but after reading that link it seems barrel wear was caused by the bi-metal bullets rather then the steel case. As a casual AR shooter I shoot Norc but with that dried up I've been looking into what to shoot next. Is there such a thing as steel case ammo with a normal copper bullet?
I noticed they also ran the guns very hot. This will also accelerate barrel wear and was in 5.56.
Results will differ with 7.62x39. Here's a good read.
http://www.canadiangunnutz.com/foru...nd-range-report-**pic-heavy**-and-long-winded
He was getting light strikes with the other surplus too. Need a XP spring for that hammer.
where do you buy it?
Before I got my dillon 650 I ran this stuff. I shot at least 2000 rounds of it in AR15's, and possibly my XCR depending on the time period. I have nothing but good things to say about it! It's hot, but more reliable for me than the norc 5.56, which I've also shot at least a couple crates of. Periodically I would have primers come out of the norc stuff and jam in the locking lugs of the AR. I wouldn't hesitate to shoot the Tula stuff if I didn't reload 5.56.
Ben
