Max range for 10" AR?

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03-01-12, 17:27
wild_wild_wes

Max range for 10" AR?

What is the maximum range an AR with a 10" barrel is usable to? Is an 11.5" barrel substancially more capable?
03-01-12, 17:36
J_Dub_503

What do you mean by useable, are we talking about accuracy or lethality?
03-01-12, 17:40
wild_wild_wes

Quote:

Originally Posted by 8ball29

What do you mean by useable, are we talking about accuracy or lethality?

Lethality I guess, but I was going to leave that open. Accuracy I think is not really an issue.
03-01-12, 17:44
Cincinnatus

Check out some of TRIDENT82's threads on his shooting with his 10.5" out to 300 yards.
03-01-12, 17:44
J_Dub_503

This would be the place for Trident82 and markm to chime in but here is a thread for 10.5"

I tried searching for some of Trident's threads and his youtube page...they fell off the edge of the internetz :confused:
03-01-12, 18:15
C-grunt

My old team leader is now SF and smoked a dude at a little over 400 meters with his Mk18.
03-01-12, 18:17
Failure2Stop

I've shot 10.3" guns out to 600 meters, and achieved far more hits than misses, and stuffing a 77gr bullet through someone's torso at any velocity is not a way to ensure a long a prosperous life.

The energetic frag range is greatly reduced from that of a 20" or 14.5" barrel when all other variables are equal, but exactly what that range is is highly dependant on bullet type and construction.
03-01-12, 18:54
J_Dub_503

I found it!

MRP CQB 10.5" on Steel @ 600yds

MRP CQB 10.5" on Steel @ 773yds
03-01-12, 18:59
tdoom15

Quote:

Originally Posted by Failure2Stop

The energetic frag range is greatly reduced from that of a 20" or 14.5" barrel when all other variables are equal, but exactly what that range is is highly dependant on bullet type and construction.

I'm curious if there is a general range? I've read before that 50-75 yards max for reliable bullet performance out of a 10.5" barrel.

Does adding a suppressor increase this distance and bullet velocity?
03-01-12, 19:01
St.Michael

AHHAHA ask trident!
03-01-12, 19:22
C4IGrant

Quote:

Originally Posted by wild_wild_wes

What is the maximum range an AR with a 10" barrel is usable to? Is an 11.5" barrel substancially more capable?

Depends 100% on the ammo used.

If you select a bonded or TSX load, you can greatly extend the range of a 10" barreled AR.

C4
03-01-12, 20:29
RD62

Quote:

Originally Posted by C4IGrant

Depends 100% on the ammo used.

If you select a bonded or TSX load, you can greatly extend the range of a 10" barreled AR.

C4

So with that being said, at what ranges can you typically still expect reliable expansion with a load like those mentioned above from a 10" barrel?
03-01-12, 21:04
C4IGrant

Quote:

Originally Posted by RD62

So with that being said, at what ranges can you typically still expect reliable expansion with a load like those mentioned above from a 10" barrel?

From what I understand, 100-120yds. So nearly double that of normal ammo.

I am willing to bet though that you could still get some expansion out to 150-180yds.

C4
03-02-12, 00:31
BigBoss01

Quote:

Originally Posted by 8ball29

I found it!

MRP CQB 10.5" on Steel @ 600yds

MRP CQB 10.5" on Steel @ 773yds

That made my day!
03-02-12, 01:22
ALCOAR

We talking mini sniper rifles here.....:D

I'll add my 2cents on a cpl. of points:

The kit that surrounds the 10" barrel will be critical to seeing how far it can accurately reach out to.....i.e. magnified optic, 2stage trigger, bipod, etc.

My hit ratio at 600yds with 75gr. HPBTs using a 10.5" barrel: 90% +
http://i888.photobucket.com/albums/a...DSC01554-1.jpg

My hit ratio at 773yds with 77gr. SMK (MK262) using a 10.5" barrel: 68%
http://i888.photobucket.com/albums/a...DSC01799-1.jpg

I would say somewhere between 600-650yds is the max effective distance for a 10"-10.5" barreled AR...now obviously this is just for being able to consistently and accurately hit torso sized targets, not what the terminal effects will be once they land.

As F2S noted....a 77gr. SMK to the torso @ 600yds is still gonna sting.

Being a big TSX fan, I crunched some numbers based on my 10.5" MV using Barnes 55gr. TSX, and found that you could still get plenty of expansion in the 200-300yd range as noted by the ballistic chart below.

1800fps is the threshold for reliable expansion with TSXs IIrc.

http://i888.photobucket.com/albums/a...DSC03691-1.jpg
03-02-12, 04:41
R0CKETMAN

Crap, I need a 10" CQB upper now
03-02-12, 05:32
Quick Stick

TRIDENT, on your 10.5, are you using a standard chrome lined bore or is it a stainless barrel? Outstanding shooting by the way:lol:
03-02-12, 07:39
usmcvet

Quote:

Originally Posted by Failure2Stop

I've shot 10.3" guns out to 600 meters, and achieved far more hits than misses, and stuffing a 77gr bullet through someone's torso at any velocity is not a way to ensure a long a prosperous life..

That sums it up vert well. Although I'm not sure I could shoot that well. :D 200 yards is plenty for me. I would need a 1-4 for more than that.

F2S what optics were you using?
03-02-12, 12:45
Iraqgunz

I asked the LAV about this some time back and I believe that his response was with good ammo, realistically one could use it out to 200M.

That is the distance one can expect it to perform effectively. We all know through the testing that Trident82, myself, markm and others have done that you can in fact hit at ranges much further.
03-02-12, 17:06
wild_wild_wes

Quote:

Originally Posted by C4IGrant

Depends 100% on the ammo used.
C4

100% on ammo, and not barrel type, as in uber-grade SS vs. chrome-lined?
03-02-12, 17:35
C4IGrant

Quote:

Originally Posted by wild_wild_wes

100% on ammo, and not barrel type, as in uber-grade SS vs. chrome-lined?

Barrels matter not in regards to lethality.

C4
03-02-12, 17:39
Failure2Stop

Quote:

Originally Posted by usmcvet

F2S what optics were you using?

I'm not proud of this, but old-school TA01 NSNs
:suicide2: