View Full Version : 5.45X39mm
01-31-2009, 08:47 AM
how does it compare to the 5.56?
01-31-2009, 10:10 AM
In what relation? ammo cost... ammo availability... lethality?
01-31-2009, 10:21 AM
sorry i should of been more clear. i was wondering about lethality and range.
01-31-2009, 10:24 AM
TO be honest I dont know much about the round. but I found this site that has some gel test on it.
01-31-2009, 11:24 AM
It tumbles in flesh but does not fragment like the .223. SInce a fragmenting bullet does more damage than a tumbling bullet, the .223 does more damage.
01-31-2009, 11:39 AM
thats what i've been reading about it. it looks like a nice round for plinking around and cleaning up some rabbits around my place. just looking for a upper than i can shoot all day. was thinking this might be it.
01-31-2009, 12:09 PM
Right now the ammo is cheap, from what I hear from a few AK owning friends. But who knows what the future holds for imported ammo. Between the two, I would stay with the 5.56, it's more lethal with the right ammo, has much more variety in rounds you can use/reload, and can be found just about anywhere in the U.S., and has proven to be quite accurate. They also make an AK in .223 if that's what your after.
02-01-2009, 12:16 AM
from Doc Roberts
The 5.45 x 39 mm Russian M74 53 gr FMJ boat-tailed bullet has a copper-plated steel jacket surrounding an unhardened steel core and a small 5 mm long empty air-space under the bullet nose. Its typical muzzle velocity is 3066 f/s. In contrast to the older 7.62 x 39 mm Russian M43 Type PS which it replaced, the 5.45 x 39 mm M74 53 gr FMJ commonly exhibits very early yaw in tissue, at approximately 2.75", but no deformation or fragmentation. In both uncomplicated extremity and torso wounds, the very early yaw allows the bullet to travel sideways through the body, increasing permanent tissue destruction and temporary cavitation effects. A small punctate entrance wound is present and the exit wound may be punctate, oblong, or stellate depending on the bullet yaw angle on exit. Penetration is approximately 21.6”. 5.45 x 39 mm M74 is a lot like an early yawing 5.56 mm bullet that does not fragment--for example M995, but without the AP capability. Good fragmenting 5.56 mm bullets, like the Hornady 75 gr or Nosler 77 gr OTM’s, are superior to 5.45 x 39 mm. I am unaware of any good terminal ballistic testing on commercial 5.45 x 39 mm loads.
02-01-2009, 02:56 AM
I agree. Soft points like the 55 and 64 grain soft points in the Federal TRU line are also very nasty and are fairly cheap. They both fragement violently and early. The TRU soft points have cannelures and the jacket extends all the way to the tip to avoid gumming the feed ramps with lead. The Federal Tactical 62gr bonded soft point expands completely in the first two inches of penetration and retains almost 100% of it's weight, even after windshields. Between those and the heavy JHP's like the Hornady 75's they are far superior to the 5.45x39mm.
Of course, the 6.8 is superior to all of the above.... :D
02-01-2009, 04:34 AM
thank you for the information. I am just looking around for something to shoot paper at mostly. i would really like to get a 5.56 but as we all know they are not easy to find in stock and the ones that are have gone way up in price. can anyone give me feed back on Model 1 uppers? never heard of them, and was wondering how they compared to the bigger names such as RRA or STAG. thank you all again.
02-01-2009, 10:41 AM
I don't like to bash a brand, but I had a Model 1 6.8 upper and it was not very good quality. Parts were cheap.
02-01-2009, 10:56 AM
i was just looking at there 5.56. so anything that you would share would be great. thank you all again.
02-01-2009, 12:15 PM
I would wait and get an upper from a company like RRA, Stag, Bushmaster or Bravocompanyusa.com. As long as you have a lower to put it on you will be okay.
02-01-2009, 05:13 PM
found this, but i'm not sure if it is a good deal or not.
http://www.gunbroker.com/Auction/ViewIt ... =122045701 (http://www.gunbroker.com/Auction/ViewItem.asp?Item=122045701)
02-01-2009, 05:33 PM
DPMS has tight chambers. Even the one's marked 5.56. If you ream them out with a true 5.56 reamer they are okay. When I went to Colt M16 armorer's school Dean Caputo (instructor) had one of the reamers and explained how some brands did not have the correct chambers which lead to extraction problems once the gun heats up. And that is not a good price for a DPMS, IMO.
02-01-2009, 08:13 PM
I can't suggest anywhere to find one but I too think that price is too high. Some custom jobs don't cost that, the price is definitely a panic price IMHO.
Powered by vBulletin® Version 4.2.0 Copyright © 2013 vBulletin Solutions, Inc. All rights reserved.