Warning

 

Close

Confirm Action

Are you sure you wish to do this?

Confirm Cancel
Member Login
Site Notices
11/22/2017 10:05:29 PM
Posted: 8/28/2004 6:48:15 PM EST
I am considering a FAL carbine build and am wondering if it is truly practical to have a rifle in .308 with only a 17 inch barrel. My liking of this caliber stems from the fact that it is powerful and performs at distance. At the moment I have a 21 inch version as it fulfills this role perfectly.

What kind of performance loss in terms of point of impact, velocity, and fragmentation (if that even happens at 21 inches) occurs with a 17 inch barrel versus a standard 21? Also, would an M4 be better suited for a carbine role in any case?
Link Posted: 8/28/2004 7:01:43 PM EST
Link Posted: 8/28/2004 7:21:46 PM EST
You will lose some velocity, but you will still have a long range. I know that many, many people have short barreled .308s and they seem to work fine. For a defensive weapon the M4 would be much better, especially if your collection already has an FAL.
Link Posted: 8/28/2004 9:37:22 PM EST

Originally Posted By gvidon212:
I am considering a FAL carbine build and am wondering if it is truly practical to have a rifle in .308 with only a 17 inch barrel. My liking of this caliber stems from the fact that it is powerful and performs at distance. At the moment I have a 21 inch version as it fulfills this role perfectly.

What kind of performance loss in terms of point of impact, velocity, and fragmentation (if that even happens at 21 inches) occurs with a 17 inch barrel versus a standard 21? Also, would an M4 be better suited for a carbine role in any case?



I chrono'd my BH 168 gn .308 at 2550 fps at 10 ft from my 16" AR10. The BH factory specs say 2650 fps which I presume is from a 24" barrel. So not much velocity loss IMO.

DRD
Link Posted: 8/28/2004 9:39:44 PM EST
.308 gets almost all of its velocity, at least with 168gr loadings, in the first 20 inches of barrel.
Link Posted: 8/28/2004 10:26:11 PM EST

Originally Posted By gvidon212:
I am considering a FAL carbine build and am wondering if it is truly practical to have a rifle in .308 with only a 17 inch barrel. My liking of this caliber stems from the fact that it is powerful and performs at distance. At the moment I have a 21 inch version as it fulfills this role perfectly.

What kind of performance loss in terms of point of impact, velocity, and fragmentation (if that even happens at 21 inches) occurs with a 17 inch barrel versus a standard 21? Also, would an M4 be better suited for a carbine role in any case?




Probably 99.9% of all the G3s ever made had 17.75" (450mm) barrels.

Never heard any complaints about their performance.
Top Top