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4/22/2019 5:32:20 PM
Posted: 10/31/2004 6:39:57 PM EDT
Hey everyone-

Someone asked me this question, and I couldn't give a good response to it. What do you all think?

"If a good Colt M-4 barrel will shoot about 1MOA, why should I bother getting, say, an Obermeyer or Krieger 20" stainless barrel? Will I get any practical accuracy out of the pricier and longer barrel?"

This is of course, leaving weight/balance or other ergonomic considerations out of the equation.

Thanks,

G1
Link Posted: 10/31/2004 6:47:54 PM EDT
More speed. Like, say, about 150 feet per second.
Link Posted: 10/31/2004 6:48:41 PM EDT
More velocity for starters. Length won't effect accuracy (or atleast that's what they say) but a quality match grade barrel will.

Link Posted: 10/31/2004 7:27:26 PM EDT
16": Compact, easy to manuever with, good for CQB
20": higher velocity, better lethality, better accuracy at longer distances, longer effective range
Link Posted: 10/31/2004 11:08:22 PM EDT
+1

and the 20'' looks better w/ a A2 stock; the 16in looks better w/ a m4
Link Posted: 10/31/2004 11:18:07 PM EDT
I like the 20's better myself
Link Posted: 11/1/2004 3:32:30 AM EDT
[Last Edit: 11/1/2004 3:33:30 AM EDT by wes15a2]
The 16"is also substantially louder when fired,
even with ear protection.
Link Posted: 11/1/2004 3:40:22 AM EDT

Originally Posted By Variablebinary:
16": Compact, easy to manuever with, good for CQB
20": higher velocity, better lethality, better accuracy at longer distances, longer effective range



And if NRA competition floats your boat, 20" is legal, anything shorter is not.
Link Posted: 11/1/2004 3:52:20 AM EDT
[Last Edit: 11/1/2004 3:52:59 AM EDT by xcpd69]
GET BOTH!




Lonny
Link Posted: 11/1/2004 4:10:34 AM EDT
The Marines tried the M4 and didnt like it they opted to stay with the 20" barrel....thats good enough for me.


LB
Link Posted: 11/1/2004 11:01:50 AM EDT

Originally Posted By USMC_LB:
The Marines tried the M4 and didnt like it they opted to stay with the 20" barrel....thats good enough for me.


LB



What? First of all, the M4 uses a 14.5" barrel, not a 16". Big difference in velocity. Second, the only 16" rifle currently in use by the Marines is the Recce carbine which the predecesor of the SPR. Provided you're not doing CQB, the 20" is a better way to go and I think that's what was in mind when choosing the M16A4 over the M4.
Link Posted: 11/1/2004 11:12:40 AM EDT
Link Posted: 11/1/2004 11:49:04 AM EDT
I'm surprised no-one is talking about sight radius! I guess I'm the only old dog here with declining vision!

I like the longer sight radius of the 20"...it does make a difference, at least if you're eyes aren't what they used to be!
Link Posted: 11/1/2004 12:03:55 PM EDT

Originally Posted By theBUBBAMANcan:
I'm surprised no-one is talking about sight radius! I guess I'm the only old dog here with declining vision!

I like the longer sight radius of the 20"...it does make a difference, at least if you're eyes aren't what they used to be!



Good point, but you can get 16" uppers and use the full sight radius. I have a 16" "Dissipator" AR15 that has the same sight radius as a 20" AR.
Link Posted: 11/1/2004 12:15:29 PM EDT
What about putting a collapsible stock on a 20”? Does it just look stupid?
Link Posted: 11/1/2004 12:20:34 PM EDT

Originally Posted By lobowalk:
What about putting a collapsible stock on a 20”? Does it just look stupid?



Functionally it is fine. I think it looks good as well, but it needs to have straight handguards, not tapered like the regular plastic ones.





Other thread with 20" and collapsible stocks.
Link Posted: 11/1/2004 12:33:25 PM EDT

Originally Posted By lobowalk:
What about putting a collapsible stock on a 20”? Does it just look stupid?



Hell no, its pimpin. I love my 20" upper. I use it 10x more than my 16" upper.
Link Posted: 11/1/2004 1:27:46 PM EDT
20"......A good rifle is a balanced rifle. How it comes up to the shoulder is mucho important.
For my money it has to "swing" from target to target just like a good shotgun does.
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