Whats the largest grain for a 556
You are Unregistered, please register to use all of the features of FirearmsTalk.com!    

Firearm & Gun Forum - FireArmsTalk.com > Long Guns > Auto & Semi-Auto Discussion > AR-15 Discussion >

Whats the largest grain for a 556

LinkBack Thread Tools Display Modes
Old 01-25-2011, 12:12 PM   #1
Feedback Score: 0 reviews
Join Date: Feb 2010
Location: Las Milpas,Texas
Posts: 145
Liked 6 Times on 4 Posts

Default Whats the largest grain for a 556

I have a dmps ar-15 that has a 1-9 twist i wanna know if i can i use a large grain bullet and how safe is it ?

ANAKINANAYA is offline  
Reply With Quote

Join FirearmsTalk.com Today - It's Free!

Are you a firearms enthusiast? Then we hope you will join the community. You will gain access to post, create threads, private message, upload images, join groups and more.

Firearms Talk is owned and operated by fellow firearms enthusiasts. We strive to offer a non-commercial community to learn and share information.

Join FirearmsTalk.com Today! - Click Here

Old 01-25-2011, 12:25 PM   #2
Feedback Score: 0 reviews
Join Date: Oct 2007
Location: Stafford, Virginia,The state of insanity.
Posts: 14,043
Liked 43 Times on 36 Posts


70gr is the heaviest you can shoot with a 9 twist barrel.
cpttango30 is offline  
Reply With Quote
Old 01-25-2011, 06:00 PM   #3
Feedback Score: 0 reviews
willfully armed's Avatar
Join Date: May 2009
Location: Olathe,JOCO KS
Posts: 2,002
Liked 128 Times on 97 Posts
Likes Given: 13


Tango, (shaking head) you can do better than that.

You can shoot whatever grain you'd like from that gun, SAFELY.

However the weight and profile of the bullet dictate what rate of twist will stabilize it best.

1:9 is optimal for 55gr. THe effect of twist on non optimal weights, would not be noticed in ranges of 100 yards or less.
I could make a list of a bunch of guns i have, or "have", or wish I had. Why would one feel compelled to provide that infornation freely? Do you feel the need to show off? Is it some immature game of oneupsmanship?

Why do you feel it necessary to list your guns?
willfully armed is offline  
Reply With Quote

Thread Tools
Display Modes

Similar Threads
Thread Thread Starter Firearms Forum Replies Last Post
[Largest Caliber Rifle] CarCrash General Rifle Discussion 41 03-20-2010 06:12 AM
The world's largest gun show? AsmelEduardo The Club House 2 04-29-2009 11:30 PM
Largest pistol caliber? marmac Semi-Auto Handguns 4 12-13-2007 10:46 PM