WTF? .308 MV - AR15.COM

Posted: 8/24/2004 4:54:17 PM EDT

I just looked at a site that said 3K fps was average for .308 from a 16" bbl AR10. I thought nominal MV for .308 from an 18" - 20" bbl was around 2750 fps. I know I'm ignorant, but just how ignorant am I? If I build a 16" L1A1 carbine, am I going to get 3K fps out of it with milsurp?

Posted: 8/24/2004 4:55:35 PM EDT

[#1]

Posted: 8/24/2004 4:58:01 PM EDT

[#2]

Quoted:
I just looked at a site that said 3K fps was average for .308 from a 16" bbl AR10. I thought nominal MV for .308 from an 18" - 20" bbl was around 2750 fps. I know I'm ignorant, but just how ignorant am I? If I build a 16" L1A1 carbine, am I going to get 3K fps out of it with milsurp?

OK, I'll bite, where did you see that?

I believe 308 Match is ~2660fps range....

Only thing that MAY approach that might be those Hornady Light Magnums........doubtful.

Posted: 8/24/2004 5:21:46 PM EDT

[#3]

Quoted:
Quoted:
I just looked at a site that said 3K fps was average for .308 from a 16" bbl AR10. I thought nominal MV for .308 from an 18" - 20" bbl was around 2750 fps. I know I'm ignorant, but just how ignorant am I? If I build a 16" L1A1 carbine, am I going to get 3K fps out of it with milsurp?

OK, I'll bite, where did you see that?

I believe 308 Match is ~2660fps range....

Only thing that MAY approach that might be those Hornady Light Magnums........doubtful.

Maybe I misread it.

Posted: 8/24/2004 5:24:29 PM EDT

[#4]

110gr.......might be believable......I'll let a reloader speak up.

Posted: 8/24/2004 5:25:17 PM EDT

[#5]

110gr bullet it could be possible, but i don;t know about ot of a 16in barrel. 18 maybe 16 I don't know.
course I don;t really know anyway, but hey with a light bullet why not 3k/sec might be doable

Posted: 8/24/2004 5:26:00 PM EDT

[#6]

110 grain bullets.....but I have no clue why he'd want a chrome-lined VARMINT gun..

Posted: 8/24/2004 5:26:27 PM EDT

[#7]

Speer #13 Reloaders Book.....

110gr AA2460 - 50gr MAX LOAD -- 3218 fps......

Posted: 8/24/2004 5:28:06 PM EDT

[#8]

Speer #13 Reloaders Book.....

110gr projectile over - 48gr Varget MAX LOAD -- 3062 fps......

His load 48.5grs......a little over recommended max....

Posted: 8/24/2004 5:32:58 PM EDT

[#9]

So (and please ignore me if the question is an imposition - I'm way over my head on this) if I have a .308 with a 16" bbl and I shoot 147gr milsurp, I'm looking at what? About 2000 fps? Will 2000 fps (or whatever the MV is) give reasonable terminal performance?

Posted: 8/24/2004 5:34:57 PM EDT

[#10]

Quoted:
So (and please ignore me if the question is an imposition - I'm way over my head on this) if I have a .308 with a 16" bbl and I shoot 147gr milsurp, I'm looking at what? About 2000 fps? Will 2000 fps (or whatever the MV is) give reasonable terminal performance?

Probably more like 2500-2700fps......

Posted: 8/24/2004 5:37:15 PM EDT

[#11]

A steel plate is NOT a human body, but at 200yds from a carbine length AR10 the plate rings out in stoppage of the 147gr Port ammo I use.

Using a 55gr XM193 from a 16" Carbine it simply dings.....

The energy that it is carrying is A LOT more than the 5.56.

I wouldn't want to be extremity struck by a 7.62NATO. Nor COM hit -- Period.

Posted: 8/24/2004 6:59:41 PM EDT

[#12]

NO way with normal bullet weights.

Posted: 8/24/2004 7:03:49 PM EDT

[#13]

Quoted:
NO way with normal bullet weights.

Apparently 110gr is quite "normal"......there is a listing for 100gr too.......

At that point just get a .243....

[ARCHIVED THREAD] - WTF? .308 MV

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