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xjedix
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Posted: 3/4/2010 4:12:34 AM
Just playing around I decided to pull some bullets and compare, figured I'd share.

I was specifically interested in how the 5.45 compared to a 5.56 bullet, I had no idea it was that much longer.


Left to right: 7.62x39, 5.45x39, 5.56x45


blasterrider88
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Posted: 3/4/2010 4:51:30 AM
I would like to have an ak74 to go with my norinco mak 90. the 5.45x39 looks cool
dskeet
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Posted: 3/4/2010 5:15:33 AM
5.45 is my favorite round. I love how they look like little darts
VA-gunnut
Because I said so, that's why!
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Posted: 3/4/2010 8:38:14 AM
Is the 5.45 a commercial or surplus round?
Have you visited your Hometown Forum today?

http://www.ar15.com/forums/board.html?b=8

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ARmory04
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Posted: 3/4/2010 11:10:18 AM
Originally Posted By VA-gunnut:
Is the 5.45 a commercial or surplus round?


I believe that is surplus, based on the green tint and sealant.
ARmory04
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Posted: 3/4/2010 11:12:30 AM
I see your pics, and I raise you.........:

5.56, with 55gr, 62gr M855, and 75gr BTHP –––– 5.45, with 53gr FMJ steel core, and 60gr FMJ........




Notice the 5.56 trend of getting longer; ala 5.45...?
manican
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Posted: 3/4/2010 11:44:09 AM
[Last Edit: 3/4/2010 11:45:04 AM by manican]
If you look closely to the taper on the 5.45 bullet it has less rifling contact than the 5.56 due to its taper.
That said I'll still pick the wicked 5.45
chowchow
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Posted: 3/4/2010 1:09:19 PM
Ill have to do a test on several phone books to see how the 5.45 penetrates. Would be interesting to see as it yaws and come out sideways.
MG42--Slayer
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Posted: 3/4/2010 3:49:04 PM
Originally Posted By ARmory04:
I see your pics, and I raise you.........:

5.56, with 55gr, 62gr M855, and 75gr BTHP –––– 5.45, with 53gr FMJ steel core, and 60gr FMJ........

http://i263.photobucket.com/albums/ii143/jballistics04/SDC10730-1.jpg


Notice the 5.56 trend of getting longer; ala 5.45...?


I see your pics and raise you

7.62x54r, .223
ARmory04
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Posted: 3/4/2010 4:40:24 PM
Originally Posted By MG42––Slayer:
Originally Posted By ARmory04:
I see your pics, and I raise you.........:

5.56, with 55gr, 62gr M855, and 75gr BTHP –––– 5.45, with 53gr FMJ steel core, and 60gr FMJ........

http://i263.photobucket.com/albums/ii143/jballistics04/SDC10730-1.jpg


Notice the 5.56 trend of getting longer; ala 5.45...?


I see your pics and raise you

7.62x54r, .223
http://img52.imageshack.us/img52/7626/cimg4205.jpg



...Need to work on that focus....

Speaking of 7.62..... I raise the bar once more.................:

x51 on left, with 147gr, 168gr, and 175gr. x54 on the right, 147gr Russian, and 182gr Yugo.......

Ermac
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Posted: 3/4/2010 8:43:14 PM
Originally Posted By xjedix:
I was specifically interested in how the 5.45 compared to a 5.56 bullet, I had no idea it was that much longer.

I read that the 5.45x39 is actually 5.62 mm.


Jerad
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Posted: 3/4/2010 8:59:44 PM
Originally Posted By Ermac:
Originally Posted By xjedix:
I was specifically interested in how the 5.45 compared to a 5.56 bullet, I had no idea it was that much longer.

I read that the 5.45x39 is actually 5.62 mm.




5.60 or .220"

Navy Molar Mechanic in the making...
NavajoGunOwner
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Posted: 3/4/2010 9:21:15 PM
since we are comparing things..


ARmory04
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Posted: 3/5/2010 9:29:21 AM
Originally Posted By NavajoGunOwner:
since we are comparing things..


http://i31.photobucket.com/albums/c375/Navajozorro/D2966171A.jpg



Appears to be 300 WM, 7.62N, .17 HMR, .22 LR, and .22 cal pellet...

Nice pic btw..
ATC
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Posted: 3/7/2010 4:26:16 AM
So uhhh....who's got the .50BMG to compare?
TX-Zen
5.45 FTW !
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Posted: 3/7/2010 8:29:39 AM





Z
Снайперская винтовка Драгунова
shakyshot
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Posted: 3/7/2010 9:46:12 AM
Appologies for the AR in the background but here is a .223 and a 50BMG

eracer
Grendel FTW
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Posted: 3/7/2010 9:50:50 AM

Originally Posted By chowchow:
Ill have to do a test on several phone books to see how the 5.45 penetrates. Would be interesting to see as it yaws and come out sideways.


The 5.45 yaws before it gets to the target.
Social de-evolution appears complete. Typical human behavior is now entirely absent.
Zachrjasz
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Posted: 3/7/2010 11:40:46 AM

7,62x39 9x39 SP5 ball 9x39 SP6 AP 5,45x39



all types of 5,45x39
POLYTHENEPAM
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Posted: 3/7/2010 12:41:05 PM
Originally Posted By eracer:

The 5.45 yaws before it gets to the target.

If you fire it in a barrel with the wrong sized bore, or the incorrect rate of twist, yes (just as any other bullet/cartridge).
If you fire it through the correct barrel, no.

iamg0ku
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Posted: 3/7/2010 12:47:02 PM
Originally Posted By eracer:

Originally Posted By chowchow:
Ill have to do a test on several phone books to see how the 5.45 penetrates. Would be interesting to see as it yaws and come out sideways.


The 5.45 yaws before it gets to the target.


Only if you're shooting it out of a piece of junk rifle!

I assure you, none of the five 5.45 rifles I've built do any 'yawing' prior to striking the target.
Sopho
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Posted: 3/7/2010 12:57:00 PM
The more I see it the more I see how much the 5.45x39 and 5.56x45 fall behind to the 7.62x39. I insist and always will, the AK = 7.62x39.
rube79
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Posted: 3/7/2010 1:04:27 PM
Originally Posted By Sopho:
The more I see it the more I see how much the 5.45x39 and 5.56x45 fall behind to the 7.62x39. I insist and always will, the AK = 7.62x39.


Do you have any experience with the 5.45x39? What do you base your opinion on?

I have some 5.56 75gr TAP that I would LOVE to compare to 7.62x39's best

Where do the 5.45 and 5.56 fall behind to the 7.62x39, maybe barrier penetration???
Ermac
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Posted: 3/7/2010 1:23:26 PM
[Last Edit: 3/7/2010 2:11:38 PM by Ermac]
Originally Posted By Sopho:
The more I see it the more I see how much the 5.45x39 and 5.56x45 fall behind to the 7.62x39. I insist and always will, the AK = 7.62x39.

I prefer the 7.62x39, but it's not like it totally beats the 5.56x45 or 5.45x39. The 7.62x39 does better for lethality and barrier penetration then either of those cartridges, but does not have the flat trajectory of the 5.56x45 or 5.45x39. With that said, there are cartridges out there that beat them all in the catagories I named. I wonder how the 9x39 does ballisticly.

sniper59
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Posted: 3/7/2010 1:47:55 PM
Currently, the only 5x45x39 ammo is imported. I love the round. Virtually no recoil and you can dump a 30rd magazine in a couple of seconds.I have a sweet Polish tantal and a bulgy fixed stock on the way.
windyhill
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Posted: 3/7/2010 2:08:20 PM
That 5.45 bullet must have one heck of a ballistic coefficient. It would seem with that taper it would have better LR performance than the same weight 5.56.
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