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Posted: 1/17/2006 7:08:12 PM EDT
Can anyone give me specifics on range and muzzle velocities differences between the different lengths?
Link Posted: 1/17/2006 7:18:51 PM EDT

Originally Posted By cdhicks99:
Can anyone give me specifics on range and muzzle velocities differences between the different lengths?



Ammo oracle

velocity out of 20 inch minus velocity out of 16 inch divided by two plus velocity out of 16 inch.
Link Posted: 1/17/2006 7:26:41 PM EDT
Sorry I finally found this...Quite helpful.
Link Posted: 1/17/2006 7:53:01 PM EDT
[Last Edit: 1/17/2006 7:53:44 PM EDT by cdhicks99]
OK another question.
How is the accuracy affected between a 18" and 20" at say 500m?

ETA: Is it worth the extra weight and bulk of a 24"?
Link Posted: 1/17/2006 8:49:21 PM EDT
What's with the bullpup getting better ballistics than a 24" AR?
Link Posted: 1/17/2006 9:10:24 PM EDT

Originally Posted By cdhicks99:
OK another question.
How is the accuracy affected between a 18" and 20" at say 500m?

ETA: Is it worth the extra weight and bulk of a 24"?



Accuracy shouldn't be different, all things equal. However, velocity will be.

I have shot my 18" at 600 yards, and it's no perceptibly different in accuracy than my 20".
Link Posted: 1/17/2006 9:12:13 PM EDT

Originally Posted By steve-oh:
What's with the bullpup getting better ballistics than a 24" AR?



One is piston (M17S) one isnt(AR)? One has the gas port farther forward (M17S) then the other?
Link Posted: 1/17/2006 9:17:54 PM EDT

Originally Posted By swingset:

Accuracy shouldn't be different, all things equal. However, velocity will be.

I have shot my 18" at 600 yards, and it's no perceptibly different in accuracy than my 20".


Great, I have to build my wife a precision AR good for long range.
She wants to shoot competetively at long range but she is a very small lady.
So I think an 18" SS fluted down will be the right combo of weight and range.
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