Barrel Lengths and muzzle flash

[crashgordan]

Gents

Have a odd question presented to me and i don't know the answer so i thought i'd present to the collective knowlege here.

I assume that at some point, a barrel of any length in any caliber (assuming quality ammo) will not need a flash hider to hide flash.

I see barrels under 18 in. and under with hiders, but rarely lest it's a true military configured rifle...

Rarely see FH on 308 bolt rifles, but typically on tactical semi auto types.

My question is: in a 5.56/223 rifle, at what length do i have to bring the Barrel to to eliminate the need for a flash hider.

Do i need one at all on an 18 in.? or on a 20 in.? assuming military grade ammo...

thanks for your feedback.

[Guest Mugster]

Downrange looking into the muzzle, it doesn't matter how long the barrel is, your going to see a pinpoint of light to shoot back at. A flash suppressor helps send the flame to either side of the sights so you don't blind yourself, although they don't work too good.

So knowing that, it takes about a 24" barrel in .223 to remove most all the flash from you looking down the sights. It depends on powder speed, composition of the powder, and the bullet weight (or speed down the barrel). A 16" is really really bad and a 20" is probably somewhat practical with 5.56 power ammo for use at night. These .223 11.5" SBR's have insane flash with full power ammo. They look like blasters from star wars at night.

[crashgordan]

ok, thanks!

anyone else want to add their 2 cents??

i appreciate the feedback.

j~