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Posted: 8/27/2004 10:45:17 PM EDT
[#1]
5.45 seems to have less recoil, but it also has a very limited selection of ammunition choices.
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Posted: 8/27/2004 10:49:09 PM EDT
[#2]
true thats what i was thinking. anytime i run out of ammo i could run to walmart or the sportin goods store and pick some up. i dont think anywhere around here has 545 except at gunshows =-/ which one does everyone else think has the least amount of recoil?
Thanks again, Jeremy |
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Posted: 8/27/2004 11:24:27 PM EDT
[#3]
I think the difference is truly negligible, very mild wither way, now by building it in .22LR, you may notice a difference.
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Posted: 8/28/2004 5:59:49 AM EDT
[#4]
I found the 5.45 to has just a tiny bit less recoil than the 223. It reflects in the speed of the bullet travel.
I had the ak in 223 and always wondered about the 5.45. Then my friend Campy said try it. So I bought one and loved it. The huge bonus is what the bullet does. It is designed better and does more damage than the 223 ( edited to say " in my opinion") . I still feel indebted to Campy. The availability issue? Just buy plenty of ammo and have a stock pile of it. |
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Posted: 8/28/2004 6:10:43 AM EDT
[#5]
5.45 shot from a 16" ak74 has approximately 1/2 the energy (3.39 joules) when compared to 5.56 shot from a 20" m16a1 rifle (6.44 joules).
some of this can be attributed to the fact that 5.45 is the least powerful cartridge used by any modern military and part of this can be attributed to the very efficient ak74 muzzle brake. the actual felt recoil of most of the rifle i shoot in both calibres gives a distict edge to 5.45. controllability in full auto is also better, as are follow-up shots in semi-auto. |
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Posted: 8/28/2004 6:20:22 AM EDT
[#6]
Can't argue with the scientific end, I'll ride with "truly negligible". Compared to 7.62x39 both are a breeze. Compared to .308, all three of the aforementioned calibers are a breeze. I prefer the lighter calibers while at the same time being a recoil junkie. Don't know exactly what that says about me... 
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Posted: 8/28/2004 6:52:18 AM EDT
[#7]
I don't necessarily think that is true. Take a look at these illustrations.     
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Posted: 8/28/2004 7:14:01 AM EDT
[#8]
The .22 shots look evil
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Posted: 8/28/2004 7:55:24 AM EDT
[#9]
Shoot them both out of a 16 inch barrel at 50-100-150-200 yards and see which one performs the same. Id especially like to see the report from M855. |
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Posted: 8/28/2004 7:56:19 AM EDT
[#10]
That is true Bradd_d, but only if fired from a 20 inch barrel. It takes the full length of the barrel to get to the speed in order for the bullet to fragment. Try it in a 16 inch, mine did not fragment. Then try it in a krink. The 5.45 doesn't matter. Unless you use a sling shot
 . Also I await the geneva convention people to step in, because no army is supposed to use a dirty bullet. They are supposed to stay intact, thats why the FMJ. No hollow points, or soft points allowed |
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Posted: 8/28/2004 7:59:31 AM EDT
[#11]
I think most of that is the brake. Shootin SAR-2's and SAR-3's with no muzzle device, the difference is negligible. Once I shot my SAR-2 next to my AK-74 and there was a very noticable difference in recoil and muzzle rise. The only difference was that the 74 had the brake. |
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Posted: 8/28/2004 8:02:36 AM EDT
[#12]
www.ammo-oracle.com The 5.45 does not have the spectactular terminal performance of the 5.56 out to 150m or so. It will, however, being heavily steel jacketed, penetrate light cover and safety glass better than the thin copper jacketed 5.56. |
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Posted: 8/28/2004 8:07:26 AM EDT
[#13]
What range did you shoot the 16" at and what ammo were you using? The 16" should fragment out to about 100 yds. That's when it drops below 2700 fps which is the magic number for reliable fragmentation in 5.56. There is also possible fragmentation down to 2500, but it's not near as reliable. After that, the bullet will just perform like any other fmj. Since, we don't have access to military 5.45, wouldn't commercial 5.45 just act like standard fmj? Does it fragment at all? |
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Posted: 8/28/2004 8:09:36 AM EDT
[#14]
It also depends on the ammo he was using and wheter it was .223 or 5.56
There is a wealth of data on the fragmentation of M-193 from a 16 in ch barrel. The Ammo-Oracle link I provided is the best place to start. |
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Posted: 8/28/2004 8:15:02 AM EDT
[#15]
That is one huge site! Wow. They show and say this
"Unfired Wolf and a Wolf FMBTJ round after a close encounter with ballistic gelatin at 2885 fps. The round was fired from a 16" barrel at a mere 16 feet and still did not exhibit substantial fragmentation." That might be the problem. Sorry 223 guys hope I did not stir anything up. Its just my opinion. |
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Posted: 8/28/2004 8:25:25 AM EDT
[#16]
They do warn you. Damn I love high-speed internet! |
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Posted: 8/28/2004 8:58:54 AM EDT
[#17]
If you cut open the bullet on the commercial 5.45 it has no lead in the front, kind of like the military, only they have steel.
I was using all wolf ammo. My final decision was when i had 2- 5 gallon buckets filled with about 3 1/2 gallons of water. I shot the 5.45 first and it blew the crud out of it. Not only did the back and bottom blow open but it launched about a foot in the air. Then I shot the 223 and it too did damage but not as much as the 5.45. Again I am sorry if I got anyone mad at me. I realize that the military stuff probably is way better. I was just going on my own personal experience.
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Posted: 8/28/2004 8:59:39 AM EDT
[#18]
ss109 (5.56 nato ball) generates 1,700 joules of muzzle energy with a 4.0 gram bullet
military 5.45 generates 1,385 joules of energy with a 3.42 gram bullet. all things being equal, you should be able to easily feel the 25% difference in energy. now, shooting downloaded 5.56 wolf 55 gr. v. 5.45 wolf 59 gr., probably not much difference. |
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Posted: 8/28/2004 9:02:45 AM EDT
[#19]
I do appreciate you sharing your experience. Right now my grab and go gun is an AR, but I'm putting together a nice little AK-74 and I'd like to know the capabilities of the 5.45. |
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Posted: 8/28/2004 12:08:51 PM EDT
[#20]
5.45 is a bit softer in recoil. Main difference I note is the 5.56 being designed for a 20" bbl and 5.45 for 16". So depending on whether you want more or less fireball.
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Posted: 8/28/2004 12:30:40 PM EDT
[#21]
If you want a Krink, which is uber short barreled, go wiht the 5.45. I did.
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Posted: 8/29/2004 12:59:31 AM EDT
[#22]
5,56mm = Easier to find... 5,56mm = Cheaper to buy 5,56mm More choices FMJ, HP, SP, and various bullet weights along with ballistic tips. Tracers, Incendiary I just like the explosive property of the round. At or above 2800 fps the rounds tend to fragment dramatically at the cannelure.. I have seen Woodchucks literally explode at 200 yrds with the 5,56mm SP |
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Posted: 8/29/2004 2:54:05 AM EDT
[#23]
Since when is 5.56 cheaper? Silver Bear off Aimsurplus is .13cents around compared to .11 cents around for 5.45. As for blowing up woodchucks .308 and 8mm do that just fine and at a far less cost (.05 a round for turk..wow). |
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