![]() |
![]() |
|
|
#1 (permalink) |
|
Registered User
Join Date: Dec 2006
Member # 83430
Location: Rolla and/or STL, MO
Posts: 3,190
|
Accecptable groups for 16" AR? Pics included
I finally got to shoot my AR past 100 yards this weekend. I'm just wondering if these are decent groups for my first time at longer distance. Upper is a BCM 16" 1/7 twist chrome lined barrel. Ammo was 55gr Hornady and 53gr superformance Hornady. I'm guessing since this was lighter weight bullets they were getting blown around a bit, wind was blowing right to left, varying in speed, don't know exact.
Here's the pics, they are labeled 300 and 400 yards. Also, these were shot from a lead sled from the back of a truck so it wasn't the solidest thing so there was room for a little error from me. Optic is a Nikon M-223 3-12 BDC. Other thing, groups with this ammo at 100 are nice and tight.
__________________
I speak duck. Call me a quack, it's right on target. Last edited by InDaRed2; 12-19-2011 at 05:10 PM. |
|
|
|
|
|
#4 (permalink) |
|
Poor White Trash
Join Date: Apr 2001
Member # 4387
Location: Kalispell, MT
Posts: 1,891
|
You could try a few different bullet weights and loads and you might find better accuracy . The 1/7 twist might like a heavier bullet better (62-68 grains). For a 16" carbine with off the shelf ammo it's not that bad IMO.
__________________
"My Border Collie is smarter than our president" |
|
|
|
|
|
#5 (permalink) |
|
Registered User
Join Date: Jan 2006
Member # 66188
Location: On The Edge
Posts: 99
|
With the 1/7 barrel try some 75ish gr match ammo, that should help a bit.As mentioned earlier at anything over 200 yds the only thing you are really practicing for is shooting people.Put the target up to your chest and decide if your hitting acceptably.
|
|
|
|
|
|
#7 (permalink) | |
|
Registered User
Join Date: Nov 2003
Member # 24649
Location: Around.
Posts: 2,134
|
Quote:
...but how do you figure that? Isn't it standard practice for varmint or predator hunting to take shots past 200 yards? Aren't 300 and 400 yard shots common? Or is it a New York thing? :blackflipoff2: |
|
|
|
|
|
|
#8 (permalink) |
|
Not sure if serious
Join Date: Oct 2000
Member # 1899
Location: Tacoma, Wa Where you can drink the water, but don't breath the air
Posts: 12,410
|
he probably shoots his "Glock" gangsta
__________________
I was the five hundred and fourty-second signer of the JV petition, what number were you? |
|
|
|
|
|
#9 (permalink) | |
|
Registered User
Join Date: Dec 2006
Member # 83430
Location: Rolla and/or STL, MO
Posts: 3,190
|
Ive had three shot groups under an inch.
Quote:
__________________
I speak duck. Call me a quack, it's right on target. Last edited by InDaRed2; 12-20-2011 at 04:29 PM. |
|
|
|
|
|
|
#12 (permalink) |
|
Registered User
Join Date: Nov 2003
Member # 24649
Location: Around.
Posts: 2,134
|
Looks like ~2MOA on the large side.
With my super tactical 308 FN bolt action, I can only hold 2MOA at any range. I wobble like crazy though. Is your scope sighted in (say at like 100 yards or whatever)... or were you shooting for groups? |
|
|
|
|
|
#14 (permalink) | |
|
Registered User
Join Date: Dec 2006
Member # 83430
Location: Rolla and/or STL, MO
Posts: 3,190
|
Quote:
Ill practice more and with heavier bullets and see if I can do better.
__________________
I speak duck. Call me a quack, it's right on target. |
|
|
|
|
|
|
#15 (permalink) |
|
Registered User
Join Date: Nov 2003
Member # 24649
Location: Around.
Posts: 2,134
|
2MOA is reasonable.
But if you're going to be hunting, you might want to spend some time hitting that target as best as you can. While the grouping is still good enough, you missed your target. Were those your only shots at those distances (the pictures)? How was the wind? A grazing gut shot on a Aztlan revolutionary or a Chinese soldier with an additional follow up shot from up on my roof might be fine (for that scenario)- but you don't want to go around injuring game/predators/non-game species. EDIT: I looked at your targets again... you generally missed low. Should be easy enough to correct. Last edited by Zuki Tyler; 12-20-2011 at 05:19 PM. |
|
|
|
|
|
#17 (permalink) | |
|
Registered User
Join Date: Feb 2007
Member # 86724
Posts: 4,701
|
Quote:
__________________
ko derf |
|
|
|
|
|
|
#19 (permalink) | |
|
Registered User
Join Date: Jan 2006
Member # 66188
Location: On The Edge
Posts: 99
|
Quote:
.
|
|
|
|
|
|
|
#20 (permalink) | |
|
lets go Squatchen
Join Date: Oct 2002
Member # 14561
Posts: 15,927
|
Quote:
lay a ruler down
__________________
Want to know how I lost 25lbs in 9 weeks? Try INSANITYŽ. www.beachbodycoach.com/petermhope I love it when a plan comes together Colorado Springs, CO Based FFL-07/SOT Last edited by aloharover; 12-21-2011 at 02:31 PM. |
|
|
|
|
|
|
#21 (permalink) | |
|
Registered User
Join Date: Dec 2006
Member # 83430
Location: Rolla and/or STL, MO
Posts: 3,190
|
Quote:
Im good with these groups for my first time EVER shooting that far. More practice (and no wind) and I should be even better.
__________________
I speak duck. Call me a quack, it's right on target. |
|
|
|
|
|
|
#22 (permalink) |
|
Registered User
Join Date: Dec 2006
Member # 83430
Location: Rolla and/or STL, MO
Posts: 3,190
|
For those that were wondering here are a few pics of groups at 100 yards with this rifle. 10 shot group (I shot 5 my dad shot 5).
__________________
I speak duck. Call me a quack, it's right on target. |
|
|
|
|
|
#24 (permalink) | |
|
Registered User
Join Date: Nov 2003
Member # 24649
Location: Around.
Posts: 2,134
|
Quote:
![]() Hornady specifies ~400ft-lbs at 400 yards for 223. Federal specifies ~100ft-lbs at the muzzle for 22lr. For reference, Federal Hydrashock 45acp is specified at ~400ft-lbs at the muzzle. Should be plenty for varmints or predators. None of those energies reflect any specific barrel length though. Even if you peel off 4" of barrel for the 223, you're still making quite a bit of energy. Certainly double what a 22 is making at the muzzle. Last edited by Zuki Tyler; 12-29-2011 at 05:06 PM. |
|
|
|
|
![]() |
| Thread Tools | |
| Display Modes | |
|
|