AR barrels 11.5" vs 20"

[Undergiver]

Can anyone tell me how much accuracy is lost between a 20" and a 11.5" AR barrel at 50 and 100 meters ?

 

[cancer]

Accuracy is technically not affected, but muzzle velocity is. With less muzzle velocity the bullet is affected more by wind. So, your question is very difficult to answer without a great deal of empirical knowledge.

 

[m39a2]

"On paper" accuracy is not affected but actual accuracy is. With the shorter barrel comes a shorter sight radius, bigger distance between the sights = better accuracy.

Scott

 

[mrsmitty]

If the rifle is scoped there will be no difference due to sight radius open sights yes.

 

[X-man]

The shorter barrel is also stiffer, so theoretically would offer a greater potential for accuracy all things being equal. Again, if you scope it, sight radius is a non issue. My 11.5" is just as accurate as any of my longer barrelled ARs out to 200M. (length of my club's range).

 

[msg.drew]

When it comes to ar's bigger isn't always better... my 11.5" make me want a 6.5"

 

[Wendell]

Just louder...

When it comes to ar's bigger isn't always better... my 11.5" make me want a 6.5"

A lot louder.

 

[msg.drew]

A lot louder.

Louder is better and more fun lol thats why I want a 500 S&W too