5.56 vs. 7.62

[lethe]

Of course. Telling me getting f*cked doesn't come to mind when you think of that combination?

or strange bedfellows.

[ducatiz]

When compaired to the 7.62x39, the 5.56 was supposed to have better stopping power and greater capacity, with eugene stoner's origional intent.

I had read a few articles about the origional design of the 5.56. It was to be used in a slow twist bbl, that left the bullet on the edge of stabiliztion causing it to tumble violently on impact. but the military change the twist to get better accuracy, which reduced the tumbling and stopping power.
I remember reading an article about how they also change to a inferior powder, that cause the jamming issues early on..

compared to the 7.62x39 or the 7.62x51?

stoner specified a specific type of powder, which in testing, gave great performance and reduced cleaning intervals.  military brass chose to use a different powder which was older and dirtier and caused fouling much quicker, which led to jamming and other problems in the field.

the twist was changed because a different projectile was adopted -- the belgian SS109, which required a faster twist.  the projectiles spun faster and more accurately, but overpenetration is always going to be an issue with a fully jacketed bullet, regardless of the caliber.

[rgramjet]

compared to the 7.62x39 or the 7.62x51?

stoner specified a specific type of powder, which in testing, gave great performance and reduced cleaning intervals.  military brass chose to use a different powder which was older and dirtier and caused fouling much quicker, which led to jamming and other problems in the field.

Could this be why my LAR HATES South African 7.62??  One clip and it doesnt eject.....

[ducatiz]

Could this be why my LAR HATES South African 7.62??  One clip and it doesnt eject.....

Probably not.  I believe the South African stuff is manufactured to nato specs, but it's possible they put some catgut in there.

try a chamber brush.  the best kind are the M14 type which fits into the chamber and turn it with a cleaning rod with the ratchet base.

but you never know.  i have an old import SVD that simply will not digest Albanian 7.62x54 well.  after 2-3 rounds, the cases freeze in the chamber.

[Rameses]

Check out what the UPS guy brought me today!!   

[ducatiz]

i didn't know UPS delivered bikes!!

[Sinister]

i didn't know UPS delivered bikes!!

I know.  My first thought was, "this is a gun thread, why is he posting a picture of his bike?"  Then, I saw the rifle.  Nice, dude.

[Rameses]

Yep.  It works.

[ducatiz]

Yep.  It works.

try putting your upper body forward of your waist. 

[rgramjet]

That sounds like a Stag Arms AR!  I am experiencing 30 round mag envy....friggin 20 round max commie state that I live it!

Next class, Bump Firing 101!

[ducatiz]

That sounds like a Stag Arms AR!  I am experiencing 30 round mag envy....friggin 20 round max commie state that I live it!

Next class, Bump Firing 101!

i have buttloads of 30rd mags (broght a ton of orlites back with me, not realizing.. uh..yeh).. but i prefer the 20 rders as they are easier to field when you are on your belly.  try it, drop and fire.   your rifle LOS has to be about 6-7 " above the ground, which means your HEAD is above that! 

with a shorter mag, you have better head coverage.

of course, the Beta C mag is about the same bottom length as a 20 rder, but ... much bigger cap.

[Kopfjäger]

Yep.  It works.

Whom ever taught you how to shoot a carbine like that should get slapped. 

[rgramjet]

I hear the 20 rounders have less feed problems.  I have been toying with the idea of a Beta mag......hmmmm (20) 30 rounders or 1 Beta C??  Gun shows next weekend here I come!

[rgramjet]

Some of us have to teach ourselves....

[ducatiz]

I hear the 20 rounders have less feed problems.  I have been toying with the idea of a Beta mag......hmmmm (20) 30 rounders or 1 Beta C??  Gun shows next weekend here I come!

probably not significantly fewer, the STANAG mag has been fielded long enough to work the kinks out.  more likely, there are so many aftermarket makers that ppl run into some bad ones more often.  HK makes a 'high reliability' version of the STANAG magazine but they run about 40-50 each. 

the israeli orlites are compliant even tho only the israelis use them.  self lubricating, nearly indestructible.  you can find them cheap, but all are 30 rd.  no feed problems in my experience.