.223 effectiveness at range w/ rifle length barrel?

This was the kind of "corrective" criticism I was looking for. I was under the impression that barrel length effected accuracy as much as it did velocity, hence the reason precision rifles are as long as they are. But I suppose that is to just increase velocity too mitigate wind deflection. That having been said, is it safe to say that you can create a DMR from a 14" platform?
 
xxtruthxx said:
This was the kind of "corrective" criticism I was looking for. I was under the impression that barrel length effected accuracy as much as it did velocity, hence the reason precision rifles are as long as they are. But I suppose that is to just increase velocity too mitigate wind deflection. That having been said, is it safe to say that you can create a DMR from a 14" platform?
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Sure, with a good quality barrel and ammo. Shorter barrels have less barrel flex which should technicly make them more accurate.

There was a great chart posted awhile ago showing the fragmentation range of diffrent types of ammo out of diffrent length barrels. It isn't up anymore but I sure would like to see it again. Very interesting.
 
xxtruthxx said:
This was the kind of "corrective" criticism I was looking for. I was under the impression that barrel length effected accuracy as much as it did velocity, hence the reason precision rifles are as long as they are. But I suppose that is to just increase velocity too mitigate wind deflection. That having been said, is it safe to say that you can create a DMR from a 14" platform?
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Fwiw larue is cleaning up in long range compettitions with 16 inch barrels. Sure they are shooting 308. Still the barrel length does not affect accuracy. Anschutz family will tell you shorter is more accurate, less barrel deflection vibration etc....all to a point.
 
Factory HK SL8 - handloads using 75gr Amax, 1000yds capable of hitting large pizza box sized targets.

we never shot further as there wasn't enough up in the optics.

I have shot this same bullet to a mile and it was accurate upon arrival.

Hope that answers your questions.

Jerry
 
xxtruthxx said:
Alrighty

As a new poster to these threads, I would like to mention I have been viewing and reading for a while now and I have tried the search function on the forums, but I sure many know that it lacks ever so slightly, OR I perhaps didn't use it properly.

Regardless I pose this question:

On a rifle length barrel ( 18" - 22" ) what are effective or more to the point what ranges can you stay accurate at ( lets say 2 or 3 moa ) ?

Now I'm talking about a AR style rifle, bolt actions need not apply.

"Corrective" criticism is welcomed

Thank you CGNer's
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The barrel harmonics with shorter barrels give you a more "accurate shot" (MOA) inside 2-250 yards. 300 from my experience is where velocities start to play a a bigger role, especially with factory loads.

My rifle (Colt Comp HBAR 20") and I are capable of tearing 1 ragged hole at 100 yards. I can do golf balls at 400 as well. All of those being accomplished with a SpectreDR. Mind you I have thousands invested in this rifle but it is absolutely possible.

I prefer the extra velocity and stabilization with the longer barrel. The distances and role you wish your rifle to play depend on your barrel length. That being said, I can run a CQB drill with my 20" Colt as well if not better than guys I know that use 10.5 or 14.5s.

If you plan to shoot inside 300 yards, you wont notice a difference regardless of your barrel length. If you wish to stretch out the the capabilities of this calibre, a minimum of 16" would be required to obtain the best results.

In the end, it comes down to the operator, IF you are a newer shooter, you will not out shoot any barrel length any time soon. on the other hand, if you are looking to make your first purchase count, I would go 20".
 
fireball said:
Wow, what's that SL8 load?
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Benchmark, CCI450. Seat the bullet so it will fit in the mag - yes, it will look weird

Work up and tune for the rifle per usual.

Start loads are on hodgdon site.

I like win brass but pretty much anything else works.

Good prep and have at it.

I just started mucking with my Norc M4 for accuracy and have found the 75gr Amax will not stabilize. The Hrn 75gr BTHP on the other hand works very nicely.

IMR8208 and around MOA at 100yds. The only group shot at 200yds was also MOA'ish. Wish we could shoot further.

Jerry
 
Precision requirement is a bit superficial without giving a range that it is intended to be achieved. A 1.5 MOA requirement at 100m can be achieved by more combinations of ammo/barrel than 1.5 MOA requirement at 600m.

It depends on the quality of the barrel (as well as design and twist rate), the bullet design, the velocity and the quality of the ammo - and finally the range it is being shot at.
 
Used my Colt Hbar Match using a B&L 10x shooting MK262 Mod 0 ammunition and shot a precision rifle match with it we shot out to 800m and it was amazingly accurate it was about 1.5 moa-2 moa on all 3 targets
 
Folks shoot 1000yd HiPower matches down here within the accuracy constraint the OP gave. That said its using Match ammo. The velocity difference between the 18" to 20" gun is not too significant until you start trying to push past 800m.
 
SIGH.....

we need longer ranges in BC.

Was looking at a youtube vid on a sniper match in the CO hills. unknown distance targets at 600 or maybe 800yds. some close, lots far. Different stages, terrain, you name it, these guys had to shoot it.

Great gear, great skills and a place to really see what a gas gun will do. Fun...

Jerry
 
Mystic Precision said:
SIGH.....

we need longer ranges in BC.

Was looking at a youtube vid on a sniper match in the CO hills. unknown distance targets at 600 or maybe 800yds. some close, lots far. Different stages, terrain, you name it, these guys had to shoot it.

Great gear, great skills and a place to really see what a gas gun will do. Fun...

Jerry
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You said it! It'd be nice if we had a more accepted shooting culture here, and opening up a range like that would be nice. That being said, the only place I know that I can shoot my AR at 500 is Connaught. But it'd Venice to have a more accessible public range where you shoot 500-800m
 
We have a 1200yd range in Deland FL, its take a lot of efforts from the club members to get it to where it is. We used to have to limit shooting to 800 and do to the way the range was laid out we #### down the rest of it to shoot that.
Furthest we went out was to 1000yds yesterday - but its always enjoyable. (I'm shooting my 16" SR-25)

To fully appreciate your gas gun you need to stretch their legs now and then ;)
 
KevinB said:
We have a 1200yd range in Deland FL, its take a lot of efforts from the club members to get it to where it is. We used to have to limit shooting to 800 and do to the way the range was laid out we s**t down the rest of it to shoot that.
Furthest we went out was to 1000yds yesterday - but its always enjoyable. (I'm shooting my 16" SR-25)

To fully appreciate your gas gun you need to stretch their legs now and then ;)
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Agreed. I used to take my 20" out to 600 yards. Very accurate.
 
justinchow said:
You said it! It'd be nice if we had a more accepted shooting culture here, and opening up a range like that would be nice. That being said, the only place I know that I can shoot my AR at 500 is Connaught. But it'd Venice to have a more accessible public range where you shoot 500-800m
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Shot my SR rifle to 600 and Mons once this summer. Shot a couple of SR matches at Mons and Connaught this year with CofF back to 500.
 
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