Warning

 

Close
Confirm Action

Are you sure you wish to do this?

Cancel Confirm
AR15.COM
AR Sponsor
10/13/2009 4:12:56 AM EDT
I am curious what the maximum effective range of a 5.56mm is if the rifle was set-up properly out of a 16" barrel vs a 18" barrel?? I am trying to see if the 18" barrel will contribute to something the 16" cant.
10/13/2009 4:39:06 AM EDT
[#1]
The 18" will simply provide more velocity.  As to effective range, that would depend on what you mean.  Are you looking for fragmentation range or something else?

Is this a going to be precision gun, a shtf gun, or just plinker?
10/13/2009 4:41:20 AM EDT
[#2]
if you are shooting balloons you are good to 1000 yards,

10/13/2009 5:06:42 AM EDT
[#3]
500-600m seems reasonnable for a two legged target
10/13/2009 6:27:54 AM EDT
[#4]
So how far away would you need to be in order to be comfortable with someone shooting at you with one?
10/13/2009 6:40:36 AM EDT
[#5]
Quoted:
500-600m seems reasonnable for a two legged target


except zombies. they tend to take more lead.
10/13/2009 6:53:25 AM EDT
[#6]
Quoted:
So how far away would you need to be in order to be comfortable with someone shooting at you with one?


well, that's an unusual question. are you planning for war with some Nato armed forces or local police ?

my general concern is the skill level of the operator, not the weapon platform. any weapon is only as accurate as it is fired - i would be much more alarmed if the SEALs were shooting at me than the local PD in general. of course, i don;t plan on ANY of the good guys being on the other side ... with that being said - 400m minimum. at that distance, unless they have really decent training and practice and some skill ... and a decent scope ... i don;t think they will be THAT accurate.

of course, i would be in cover. behind bricks. and steel hopefully. with my 30 mags of M855 for a decent response. just saying. i try to practice every once in awhile on a 600m range. without a scope, that's a bitch for me. of course, i was pretty good at that range with my old NM Garand.
10/13/2009 7:00:15 AM EDT
[#7]
Quoted:
Quoted:
So how far away would you need to be in order to be comfortable with someone shooting at you with one?


... and a decent scope ...



You don't need a scope for man size until maybe 700  

10/13/2009 7:07:18 AM EDT
[#8]
Quoted:
I am curious what the maximum effective range of a 5.56mm is if the rifle was set-up properly out of a 16" barrel vs a 18" barrel?? I am trying to see if the 18" barrel will contribute to something the 16" cant.


Max effective range is usually measured by at what range the energy of the bullet goes below 500 footpounds.  Its bullet weight and speed dependant. Using the same load/bullet, the 18 incher will launch faster than the 16 incher.  The difference is probably 25-100 yards.  Use a ballistics program to play the game.    

10/13/2009 7:45:21 AM EDT
[#9]
like I said during a promotion board:
"I do not know the maximum effective range of the weapon, but I do know the maximum effective range of this shooter."
10/13/2009 9:25:04 AM EDT
[#10]
like I said during a promotion board:
"I do not know the maximum effective range of the weapon, but I do know the maximum effective range of this shooter."


sorry to hijack, but how did that work out for you?
10/13/2009 9:40:51 AM EDT
[#11]
Quoted:
Quoted:
500-600m seems reasonnable for a two legged target


except zombies. they tend to take more lead.


UNLESS you are good at headshots!
10/13/2009 5:03:44 PM EDT
[#12]
I was just curious if the 18" offered much more than the 16" in range on a precision upper. It looks like it does not. Thx for the s repllies!
AR Sponsor