The Firing Line Forums

Go Back   The Firing Line Forums > The Hide > The Art of the Rifle: General

Reply
 
Thread Tools
Old March 3, 2009, 06:48 PM   #1
DanThaMan
Junior member
 
Join Date: February 28, 2009
Location: IL
Posts: 153
What grain of 5.56/223 to use?

Again, I'm new to the AR-world. I understand that individual guns tend to "like" certain brands and grains of ammunition. But for those of you who have AR 15s with 16 inch barrels and 1:9 twists rates, what is the best grain/brand of ammo for your rifle?

I am looking to buy some 5.56 in bulk within the next two or three weeks and was wondering what grain is best for a rifle with a 16 inch barrel and 1:9 twist.

Before you say it, I know I will have to sample different types at the range, and I plan on that, but I would like to get a general idea of what to sample.
DanThaMan is offline  
Old March 3, 2009, 06:52 PM   #2
ar15chase
Senior Member
 
Join Date: February 20, 2009
Location: Shallowater, Texas
Posts: 444
I have tried them all. Both of my AR-15's seem to like 55grain ammo the best. I find my carbine with a 16inch barrel to like Winchester the best. Were my rifle with the 20inch barrel, seems to like PMC bronze better. I can put 2 inch groups at 100yrds with either using the ammo they like.
ar15chase is offline  
Old March 3, 2009, 06:56 PM   #3
DanThaMan
Junior member
 
Join Date: February 28, 2009
Location: IL
Posts: 153
I am fond of 62 grain simply for the additional penetration (although marginal) and resistence to wind. What would a 62 grain perform like in a 16 inch 1:9 twist?
DanThaMan is offline  
Old March 3, 2009, 07:00 PM   #4
ar15chase
Senior Member
 
Join Date: February 20, 2009
Location: Shallowater, Texas
Posts: 444
Well I havent fired enough 62 grain ammo to give a good answer. But I can tell you that I have fired quiet a bit of 60 grain Hornady Tap ammo with great results. Although they are pricey. I know you have already heared this, but all I can suggest is buy a few boxes, of different brands, and see what kind of results you get. Then buy you bulk ammo. Sorry if thats not enough help to ya. Good luck with you AR. Welcome to the club.
ar15chase is offline  
Old March 3, 2009, 07:02 PM   #5
thinkingman
Senior Member
 
Join Date: March 27, 2008
Location: western WA
Posts: 691
Try Black Hills bluebox 60gr Vmax.
Very tight groups and bullet weight is appropriate for your barrel.
$28/50.
Good luck.
thinkingman is offline  
Old March 3, 2009, 07:04 PM   #6
ar15chase
Senior Member
 
Join Date: February 20, 2009
Location: Shallowater, Texas
Posts: 444
As I mentioned earlier I like the PMC Bonze. You can get 200rds at thesportsmansguide.com for $89
ar15chase is offline  
Old March 3, 2009, 07:08 PM   #7
LateNightFlight
Senior Member
 
Join Date: November 22, 2007
Location: Central Missouri
Posts: 551
Here's a link to a page I've found helpful to ball-park my bullet selections. I say "ball-park" because I've found some ammo that worked well outside the limits suggested by the chart. http://www.ammoland.com/2008/11/29/b...-for-your-gun/

What matters isn't actually the weight, so much as the length of the bullet that will properly stabilize with your rifle's twist. But the bullet weight & length go hand-in-hand, so it's a useful equivalent.
LateNightFlight is offline  
Old March 3, 2009, 07:38 PM   #8
Spur0701
Senior Member
 
Join Date: February 2, 2005
Posts: 152
The only real "no-no" as far as 5.56 goes is never put anything over 55g though a 1:12 twist.......a lot of people are building "retro" ARs using surplus A1 uppers. The heaver bullets won't stabilize in the slower twist rate and accuracy beyond 100 yards really sucks.
Spur0701 is offline  
Old March 3, 2009, 08:27 PM   #9
supergas452M
Junior member
 
Join Date: December 7, 2008
Location: New Mexico
Posts: 309
My new Daniel Defense M4 Carbine is 1:7 twist chrome lined 16". I hope to be able to shoot up to 74 gr but my plinking ammo will be 55 grain.
supergas452M is offline  
Old March 3, 2009, 08:53 PM   #10
HiBC
Senior Member
 
Join Date: November 13, 2006
Posts: 3,630
I have a 16 in 1 in 9 twist h-bar.My load is 25 gr Varget and a 69 gr,either Sierra MK or Nosler Competition. I get 2780 fps one windy day I was shooting at a horizontal line,a target edge.I was only trying to verify an elevation at 500 meters,to verify a reticle.I shot 10,and my hand covered it.
This load functions well,and burns clean.
HiBC is offline  
Old March 3, 2009, 09:02 PM   #11
rantingredneck
Senior Member
 
Join Date: January 12, 2007
Location: North Carolina
Posts: 4,728
My 16" RRA likes Federal XM193 just fine. I've shot PMC 55 gr. fine in it too. I just picked up some Winchester Q3131 a few weeks ago too.

FYI, www.dsgarms.com recently had Federal XM193 for 405.00 per 1K.......
__________________
NRA Member
NC Hunter's Education Instructor

PCCA Member (What's PCCA you ask? <- Check the link)
rantingredneck is offline  
Old March 4, 2009, 01:41 AM   #12
longrifles, Inc
Senior Member
 
Join Date: February 16, 2009
Location: Sturgis, South Dakota
Posts: 152
Dan,

If you want plinking ammo then might I suggest COR BON. Pete Pi is a personal friend of mine and he has his own little rendition of the M855 that shoots quite well out of 1-9 barrels.

Affordable too.
longrifles, Inc is offline  
Reply

Tags
5.56 , ammo , grain , river , rock

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 05:22 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
This site and contents, including all posts, Copyright © 1998-2014 S.W.A.T. Magazine
Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent: thefiringline.com
Contact Us
Page generated in 0.08316 seconds with 9 queries