Ok, finally got my friend to the gunshop today and he got a first hand look at an AR. It was a Bushmaster, 14" barrel version with a 2" long muzzle break on it.
He really liked how the rifle looked and felt. However, I have heard too many horror stories about the 14" M4s not having the power to knock a man down with one shot. So I convinced him to wait to look at the 16" and 20" version coming in this Friday.
My questions are the following:
How much of a velocity difference are there between the two barrel lengths?
How much more killing power does the 20" barrel give the .223 over the 16"? I have heard stories of the 20" causing much more damage to both men and beast than the 16" version. Have any of you noticed this, or if there is a difference at all?
I have also heard that from 0-300 yards the 16" is equal with the 20". Any additional info would be much appreciated, thanks.
He really liked how the rifle looked and felt. However, I have heard too many horror stories about the 14" M4s not having the power to knock a man down with one shot. So I convinced him to wait to look at the 16" and 20" version coming in this Friday.
My questions are the following:
How much of a velocity difference are there between the two barrel lengths?
How much more killing power does the 20" barrel give the .223 over the 16"? I have heard stories of the 20" causing much more damage to both men and beast than the 16" version. Have any of you noticed this, or if there is a difference at all?
I have also heard that from 0-300 yards the 16" is equal with the 20". Any additional info would be much appreciated, thanks.