16 inch VS 18 Inch AR10 308cal.

[Rhinomax]

How much of a diff. is there when it comes to energy?(Deer or hogs) From what I understand there is only about 50 fps per inch diff. So a total of 100 give or take. Can I shoot 1,000 yards with a 16?(I know just because the gun can doesn't mean I can.... I am learning) Also I have read that a 16 will not get a full powder burn and an 18 does. What does getting a full powder burn mean.....(less muzzle flash, better efficiency?)

I will be usising this to hunt mainly and as a long distance gun to shoot for fun out of season. I will be buying a can for it as well, but due to the law here in the south I can not hunt with it.

Thank you in advance guys....

 

[Rhinomax]

Re: 16 inch VS 18 Inch AR10 308cal.

By the way I am leaning towards a OBR or LMT SS bar. I am saying 18 and my buddy is pushing me to get the 16 as he says there is no diff. and the 16 will be alot more fun with the can.

 

[BCP]

Re: 16 inch VS 18 Inch AR10 308cal.

What sort of velocity are you hoping for and how heavy of a rifle can you stand to carry around through the bushes?

 

[Rhinomax]

Re: 16 inch VS 18 Inch AR10 308cal.

24-2500 Really only will have 4-500 yard shots and then will be going to a diff. gun when hunting.
I have an 18 DPMS now and I am selling that to step up to a OBR. It only weighs about 8.5 pounds unloaded with no glass. I think the weight part will be ok.....

I have to say an AR 10 for deer and hog hunting is hard to beat... They are a TON of fun..

 

[30378]

Re: 16 inch VS 18 Inch AR10 308cal.

Look at it from a different perspective. Not much difference in a 16 inch 308 and a 22 inch 30-30 with projectiles being equal. Would you be happy with a 22 inch 30-30?

 

[j.c.]

Re: 16 inch VS 18 Inch AR10 308cal.

Its a pretty nominal trade-off in both directions. 16" is a little bit handier but its easy to over-state that - similar the 18" little more velocity.

One other factor you won't see mentioned as often - so maybe I'm just more sensitive to it - is that all else equal the 18" will also have less muzzle blast.

I personally prefer rifles in 18-20" unless they are for CQB.

 

[ZLBubba]

Re: 16 inch VS 18 Inch AR10 308cal.

Go shorter, say 16". I doubt there's going to be 100fps difference between 18 and 16 inches. It will likely be half of that.

Can you use a 16" 308 at 1000? Sure. But that's more on you than on the rifle. Velocity will be dropping off, the bullets will be having a rough time in the wind. It can be done, but if you want a real 1000 yard rifle, build one. If this rifle will almost exclusively used for hunting deer and hogs, and shot under less than 600 yards, just get the 16". It will be much for convenient.

 

[BCP]

Re: 16 inch VS 18 Inch AR10 308cal.

Check out GAP. The barrels they use seem to give better velocities than most everything else including the OBRs I've read about.

 

[jlow]

Re: 16 inch VS 18 Inch AR10 308cal.

In regards to long distance shooting with an OBR i.e. 1K, I just saw this link at the LaRue site about an interesting write up by Bryan Litz who shot a 20” OBR out to 1,200 yards and "<span style="color: #3366FF">produced a 5-shot group of 9.7” (0.85 MOA) with off-the-shelf</span>" ammunition - holy cow!

You can see the article here:
http://bulletin.accurateshooter.com/2011...ith-bryan-litz/

 

[bmt]

Re: 16 inch VS 18 Inch AR10 308cal.

FWIW:

Shooting 175 grain black hills match I get 2450 from a 16" DPMS.

Standard Velocity from a 24" bolt gun is 2600 FPS.

Velocity is chrono'd + confirmed with trajectory.

Basically, I am shooting a 303 british semi auto.

Your mileage may vary.

BMT

 

[m1ajunkie]

Re: 16 inch VS 18 Inch AR10 308cal.

I have an lmt mws and have used the barrel swap feature a lot so far. I thought my ideal setup would be a 20" barrel, but now I have a suppressor on order and went back to the SS 16". Certainly a little handier, but weight seems to be basically the same.

I am planning to mainly shoot steel with mine so terminal performance isn't a big deal to me, but I am sure it will still do the job if I give that a try one day.

FWIW my handloads velocities with the 16", all loads are over 44gr of varget in LC LR brass.
175gr smk: 2500fps
178 amax: 2475fps
155 scenar (just starting development, but shoots great so far): 2575fps

 

[BCP]

Re: 16 inch VS 18 Inch AR10 308cal.

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: jlow</div><div class="ubbcode-body">In regards to long distance shooting with an OBR i.e. 1K, I just saw this link at the LaRue site about an interesting write up by Bryan Litz who shot a 20” OBR out to 1,200 yards and "<span style="color: #3366FF">produced a 5-shot group of 9.7” (0.85 MOA) with off-the-shelf</span>" ammunition - holy cow!
</div></div>

2572fps must have had some pretty favorable conditions and really good shooters.

 

[308sako]

Re: 16 inch VS 18 Inch AR10 308cal.

Buddies 16" we have shot to 1,100 and that's the limit at 4400 ASL. 175 SMK's.

Accurate as hell, it would be my choice if i could, especially after the can is attached.

Those hits on steel were with the OBR, at a distance of 800 yards

 

[Rhinomax]

Re: 16 inch VS 18 Inch AR10 308cal.

THATS A KILLER LOOKING RIG!!!!!

 

[DMack]

Re: 16 inch VS 18 Inch AR10 308cal.

I am having fantastic results with my PWS MK214. It is a 14.5" barrel, produces 2500 fps with 168 gr FGMM. Does great on steel out to 850 yards. I'd run the 16" with a rifle length tube all day long.

 

[jlow]

Re: 16 inch VS 18 Inch AR10 308cal.

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: BCP</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: jlow</div><div class="ubbcode-body">In regards to long distance shooting with an OBR i.e. 1K, I just saw this link at the LaRue site about an interesting write up by Bryan Litz who shot a 20” OBR out to 1,200 yards and "<span style="color: #3366FF">produced a 5-shot group of 9.7” (0.85 MOA) with off-the-shelf</span>" ammunition - holy cow!
</div></div>

2572fps must have had some pretty favorable conditions and really good shooters. </div></div>
I forgot to say that they were using this new Applied Ballistics TACTICAL ammunition which was developed by Bryan Litz that use the new Berger .30 caliber 175 gr tactical bullet that has a 7% higher BC than the corresponding Sierra.

 

[KevinB-KAC]

Re: 16 inch VS 18 Inch AR10 308cal.


30-Aug-11
Temp:84.2 F Elevation 66ft ASL
Pressure 29.92 InHG Wind Speed 0 MPH
Kevin's SR-25EMC w/ MAMS Ser# KM090XXX Suppressor: KAC 762QDC/CQB Ser# 7S00XX
All Velocity #'s in Feet Per Second

M118LR Lot LC-09C272-264 Sublot F
Unsuppressed Suppressed
2527.2 2533.2 Unsupp Std Deviation 14.11364982
2544.4 2539.2
2515.7 2537.6 Unsupp Extreme Spread 41.6
2503.1 2534.8
2516.9 2530 Suppressed SD 7.753106904
2535.6 2522.4
2525.6 2527.6 Suppressed ES 27.8
2502.8 2550.2
2515.3 2541.2
2537.2 2537.6
2522.38 AVG 2535.38

AB39 Mk316 Mod0 Lot FC-09A750-001
Unsuppressed Suppressed
2516.5 2518.4 Unsupp Standard Dev 8.755068373
2518.3 2510.5
2500.3 2494.5 Unsupp Extreme Spread 22.3
2517.7 2512.9
2500.7 2514.1 Suppressed SD 13.02355132
2516.4 2479.4
2501.5 2510.9 Suppressed ES 43
2501.1 2522.4
2506.2 2514.1
2496 2498
2507.47 AVG 2507.52

 

[Awesymoto]

Re: 16 inch VS 18 Inch AR10 308cal.

2535 FPS from a 16" there you go, gotta love Knight's ability to give us data

Find it odd the 316 had a larger ES suppressed vice the opposite with M118LR...

 

[KevinB-KAC]

Re: 16 inch VS 18 Inch AR10 308cal.

Yeah it was weird, but it was AB39 that was acquired for function testing, hence I think it may have been poor performing LOT.

I have some other AB39 (Mk316 Mod0) that has much smaller SD's and ES but I have that on my laptop not the desk top - and I don't know what the conditions where that day as I did not do the data.


From my shooting (group and target) experiences with AB39 is that it is much more uniform and more accurate than AA11/M118LR, and slightly slower - which was also borne out above on the chrono.

 

[Rhinomax]

Re: 16 inch VS 18 Inch AR10 308cal.

Got to say.....
I am leaning towards the 16

Getting some great info.!!!!!!!!!

 

[adam1122]

Re: 16 inch VS 18 Inch AR10 308cal.

Ive got an Armalite Ar-10A2 with a trijicon reflex II sight. Out to 450m you can hit pretty much anything if you know anything about basic holdover using a 4moa dot. Double taps are as easy as any weapon I have fired...even M4's.

Muzzle flash is minimal with the standard 3 slat flash hider and muzzle velocity depending on ammo is anywhere from 2300-2500. More than enough to kill pretty much most sized game with a 175gr round.

Can't go wrong....just dont get a cheap AR.

 

[alpha6164]

Re: 16 inch VS 18 Inch AR10 308cal.

You can even go shorter

I have a 14.5" POF and i get 2450 ft/sec with 175gr ammo. Most guys with 16" pretty much get the same velocity anyways. And a 14.5" 308 is just bad ass

 

[problemchild]

Re: 16 inch VS 18 Inch AR10 308cal.

My 18" lmt mws

46g wc846 147g ball = 2750fps
46g wc846 168gr smk = 2650

 

[Rhinomax]

Re: 16 inch VS 18 Inch AR10 308cal.

That 14.5 does look sweet. Just don't want to do the paper work. Is that a 3x15?

 

[alpha6164]

Re: 16 inch VS 18 Inch AR10 308cal.

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Rhinomax</div><div class="ubbcode-body">That 14.5 does look sweet. Just don't want to do the paper work. Is that a 3x15?
</div></div>

Thank you. no paper work needed cause it does have a 1.5" muzzlebrake that is pinned. I initially was gonna get a 3-15x but a 5-22x came up at a great price that i could not pass up. Also when i looked at the specs the 3-15 was 30oz and 5-22x is 31oz so pretty much no difference in weight. And since i was running a Burris FastFire for the upclose stuff it was an easy decision

 

[nfoley]

Re: 16 inch VS 18 Inch AR10 308cal.

If you are going to get a can go with 16" or like alpha6164 says POF in 14.5. Mine shoots great on steel out to 800 yds. Was out with a buddy couple weeks ago with his custom Weatherby and my POF and my rifle shamed his. Mine will soon have a suppressor, as soon as BATF sends the tax stamp.

 

[adam1122]

Re: 16 inch VS 18 Inch AR10 308cal.

Nice placement of your burris fastfire. I have mine mounted in an offset predator tactical mount attached to the top of my rig just underneath the scope on my 20in. Kick ass little sights.

 

[alpha6164]

Re: 16 inch VS 18 Inch AR10 308cal.

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: SteelShot11</div><div class="ubbcode-body">Nice placement of your burris fastfire. I have mine mounted in an offset predator tactical mount attached to the top of my rig just underneath the scope on my 20in. Kick ass little sights.
</div></div>

Thanks i tried a couple of different methods. My good friend Chris Costa recommended having an offset on the side rail. It is amazing how quick that red dot comes in to sight with a flick of a wrist. This way i can have up close and personal with a wide view and long range as needed. I guess different strokes for different folks, but it still amazes me that people pay $3400 for a Leupold 1.1-8x which doesnt serve as a great red dot and limits you on the top end as well!

 

[twadsw01]

Re: 16 inch VS 18 Inch AR10 308cal.

Rhino,

I just plugged Kev's average unsuppressed MV into JBM (for a 175gr SMK) with a 12" target height. Danger space at 1000yds comes out to about +/-5yds (+/-0.5% ranging accuracy). 308win at that sort of MV is <span style="font-style: italic">tanking</span> at 1000yds.

If you're at a known-distance range, or ranging targets with a laser rangefinder, it might not be a big deal. But if you're relying on a reticle to range targets that are near 1000yds out, I'd say that attaining that sort of accuracy is out of the question. Throw in the shot dispersion which normally occurs as a result of inconsistencies in bullet/round construction, rifle harmonics, and shooter input to the system (giving you the benefit of the doubt, say all of that total's 0.5moa at 1000yds - doubtful), and it's easy to see that hitting something like a 12" target at that range using a reticle for range estimation is incredibly unlikely.

What I'm saying is, IF the setup is as described above (small-ish target, unknown range, reticle-based estimation techniques), then I wouldn't bank on this being a 1kyd-capable rig.

 

[gstaylorg]

Re: 16 inch VS 18 Inch AR10 308cal.

Although it was in a .308 DTA SRS Covert bolt gun rather than a semi-auto, I was losing less than 100 fps going from a 22" to a 16" barrel with several different types of factory ammunition. The loss in MV for this rifle seems to be in the neighborhood of 10-15 fps per inch of barrel, not the 50 fps figure you often see quoted. I doubt you will lose more than ~100 fps going from 18" to 16", even in a semi-auto.

http://www.snipershide.com/forum/ubbthreads.php?ubb=showflat&Number=2258241&page=16

 

[alpha6164]

Re: 16 inch VS 18 Inch AR10 308cal.

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: gstaylorg</div><div class="ubbcode-body">Although it was in a .308 DTA SRS Covert bolt gun rather than a semi-auto, I was losing less than 100 fps going from a 22" to a 16" barrel with several different types of factory ammunition. The loss in MV for this rifle seems to be in the neighborhood of 10-15 fps per inch of barrel, not the 50 fps figure you often see quoted. I doubt you will lose more than ~100 fps going from 18" to 16", even in a semi-auto.

http://www.snipershide.com/forum/ubbthreads.php?ubb=showflat&Number=2258241&page=16 </div></div>


Well here are my velocities from the exact same hand loads from 3 different 308 setups. This should give you a good figure on velocity loss

175SMK, Varget 44.4gr loaded to 2.81"

GAP 308 26" Bartlein barrel avg MV: 2680ft/sec
FNAR gas 308 20" barrel avg MV: 2601 ft/sec
POF 14.5" barrel avg MV: 2425 ft/sec

So comparing a gas gun to a gas gun i lost 175ft/sec going from 20" to 14.5"= 32ft/sec loss per inch

Comparing the 26" bolt gun to POF 14.5 i lost 22ft/sec in velocity.



Even out of my 14.5" barrel, at sea level and 80deg temp, the 175SMK is flying at 1078ft/sec which is slightly right above the ~1050ft/sec subsonic phase and is still carrying 452 ft/lb of energy which is more than most 40S&W at point blank range

Now is this a setup that i am going to take to the range and try to compete in a 1000 yard challenge? Hell no. I have better shit than that for that purpose. But it is nice to know that i can engage up close, hunt, etc but if i needed to it can still get me that far with the advantage of great mobility compared to my 26" rig.

 

[twadsw01]

Re: 16 inch VS 18 Inch AR10 308cal.

I went through the decision-making process a while back before ordering the Larue 7.62 Predatar. Decided to go with the 16" barrel because, all of the data I could find indicated that the 16" barrel length was just about the point that the "knee" on the curve of muzzle velocity vs. barrel length occurred. In other words, the 16" barrel is just at the point at which if the barrel is shortened, the amount of muzzle velocity lost starts to increase more and more. Barrel lengths longer than 16" don't experience as much velocity change per unit length as barrels shorter than 16".

If weight/handiness and muzzle velocity are both important pieces of your overall metric for judging the appropriateness of this rifle for your uses, I think 16" yields the best balance between these two factors.

 

[Rhinomax]

Re: 16 inch VS 18 Inch AR10 308cal.

Well.... if we look at the info posted by kevin his average was 2535 and 2507 for a 16 inch bar.

2601 out of the 20 inch.

So to me it sounds like we are only talking about 50-75 fps from a 16 to a 18..

Again ..... why carry around the heavier bar. if the difference is that small.


This site really is one of the best!!!!!!!!

Thank you again for all of this fantastic input ...

 

[alpha6164]

Re: 16 inch VS 18 Inch AR10 308cal.

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Rhinomax</div><div class="ubbcode-body">Well.... if we look at the info posted by kevin his average was 2535 and 2507 for a 16 inch bar.

2601 out of the 20 inch.

So to me it sounds like we are only talking about 50-75 fps from a 16 to a 18..

Again ..... why carry around the heavier bar. if the difference is that small.


This site really is one of the best!!!!!!!!

Thank you again for all of this fantastic input ... </div></div>



What is even more interesting is that i only gain 75ft/sec going from going from a 20" gas gun (FNAR) to a 26" GAP. Obviously there is a difference between 14.5" speed of 2425ft/sec to my 2675ft/sec of the GAP rifle. You can see the spread there, but if you are already considering below 20" anyways, then really 14.5-16-18 doesnt really give you much of a difference. But the 14.5" makes maneuvering so much easier.

 

[marduk185]

Re: 16 inch VS 18 Inch AR10 308cal.

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 30378</div><div class="ubbcode-body">Look at it from a different perspective. Not much difference in a 16 inch 308 and a 22 inch 30-30 with projectiles being equal. Would you be happy with a 22 inch 30-30? </div></div>

this is about right. i have zero ar10 experience but i have lots of experience with other 308 variations and have used a 16 inch to hunt. but what i did was werked up special loads for hunting whitetails from a 16" ruger m77 compact that weighs nexta nuttin. i drop my bullet weight down to 125 grain nosler ballistic tips and speed them up to 2650 fps (with h335 iirc)so its like a faster flatter ak that carries like a 10/22 and dont recoil too bad. running normal loads thru it produces 30/30 suktastica(2400ish fps using 150 grain remington sp's)...unless thats whats yer going for. then its like a really inefficient powder guzzling ak that uses too much brass.

 

[GONIF]

Re: 16 inch VS 18 Inch AR10 308cal.

Ain't much differance in the long run .I think 18 is the sweet spot for .308 ,but I'm no expert.

 

[sobrbiker883]

Re: 16 inch VS 18 Inch AR10 308cal.

A 45-70 "can" shoot 1000 yards....

I'm a 22" for any large frame AR guy myself (this is a statement I make after running a 20" 6.5 Creedmoor gasgun in comps, not just parroting what I read online).

 

[Rhinomax]

Re: 16 inch VS 18 Inch AR10 308cal.

Mar2012 what are you hunting that a 150 grain 2500 fps round will not kill out to 400 yards give or take. I have other guns I use for out west(300 RUM) Elk, big mule deer. But in ga. I will use this to whitetail hunt an hog hunt and shot steel and paper when I have the time and huntng is out of season. I shot 3 hogs 2 weeks ago with a 308 150 win. hollow point(DPMS LR 308L 18Inch) and they where all DRT. They were all within 100 yards.... maybe thats why.

Just wondering if you think this isn't enough gun?

If this is the case about a 22 inch 30-30. Even a 18,20,22 inch 308 which is just a bit faster and as we have found out is not that much better. Is the 308 16-20 inch just not a good hunting round unless you are shooting a faster 125 grain round loaded a little hot.

Not sure.... I know I am new to learning to really how to shoot and have alot to learn about loading rounds and ballistics but I have been hunting for 22 yrs and am a little confused.

Are there other guys out there hunting with a 16-20 inch AR10 308?

Rhino

PS.... Not trying to fire anyone up.... Just wondering...

 

[marduk185]

Re: 16 inch VS 18 Inch AR10 308cal.

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Rhinomax</div><div class="ubbcode-body">Mar2012 what are you hunting that a 150 grain 2500 fps round will not kill out to 400 yards give or take. I have other guns I use for out west(300 RUM) Elk, big mule deer. But in ga. I will use this to whitetail hunt an hog hunt and shot steel and paper when I have the time and huntng is out of season. I shot 3 hogs 2 weeks ago with a 308 150 win. hollow point(DPMS LR 308L 18Inch) and they where all DRT. They were all within 100 yards.... maybe thats why.

Just wondering if you think this isn't enough gun?

If this is the case about a 22 inch 30-30. Even a 18,20,22 inch 308 which is just a bit faster and as we have found out is not that much better. Is the 308 16-20 inch just not a good hunting round unless you are shooting a faster 125 grain round loaded a little hot.

Not sure.... I know I am new to learning to really how to shoot and have alot to learn about loading rounds and ballistics but I have been hunting for 22 yrs and am a little confused.

Are there other guys out there hunting with a 16-20 inch AR10 308?

Rhino

PS.... Not trying to fire anyone up.... Just wondering...
</div></div>

nope its plenty of gun terminally speaking but its piss poor trajectory and inefficient burn makes me wonder at those parameters why dont you just run an ak or 3030. thats all i meant.
maybe its the ocd too logical half of my cranium but i just dont understand carrying undercharged cartridges with rainbow arc dope. to my way of thinking 250 yards shoodnt be a mil holdover but to each his own iguess. as far as drt...i agree ive dumped several deer with 150 grain 762x39 runnin right at 2450 with spectacularly lethal effect at 100 yards and in. timber awesome sauce the kalashnikov can be. but it aint the beanfield 300yards of flat hold smoke pole me 308 loaded right can be.
as sort of an aside, and a possible vindicator for the slower 308 loads, i have noticed some very lackluster terminal wound effects of extremely close shots, made with hotter faster bullets, that just overpenetrate so much that little energy is tranferred to the deer, or in some cases possible bullet failure upon bone impact. these events were only noticed for me though at 30 yards or under seems and gathered via my not so scientific noticings.
hope any of this can be a help to yall.

 

[TheShooter]

Re: 16 inch VS 18 Inch AR10 308cal.

I have a 18" barrel and am replacing it with a 16". I amusing this rifle solely for hunting and don't expect shots over 400 yards. When inside a small blind, 2" makes more difference than you would think.

If I want to shoot to 1000 yards, I will take my 28" bolt gun.

I have spent a lot of time looking for rifles that will work for everything, and I always came up with the fact it is a compromise. A 20" barrel will give you better velocity than a 16", but it will be giving up the velocity you really want at 1000. A 24" is great at 1000, but sucks when you are in hunting in a blind or stalking game.

 

[Rhinomax]

Re: 16 inch VS 18 Inch AR10 308cal.

Never really thought about an AK. Pretty cool info.

I also am thinking I am going to step it up and learn to reload....

 

[Rhinomax]

Re: 16 inch VS 18 Inch AR10 308cal.

OOOOOO yeah....

I have to get the 16 ich OBR beacuse those AWSOME marksman from topshot used it on TV.....

My thinking is I will be as good as them if I get that gun.....


HAHHAHAHAHAHAHAH

Thought that might make you guys laugh.....

 

[VJJPunisher]

Re: 16 inch VS 18 Inch AR10 308cal.

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Rhinomax</div><div class="ubbcode-body">OOOOOO yeah....

I have to get the 16 ich OBR beacuse those AWSOME marksman from topshot used it on TV.....

My thinking is I will be as good as them if I get that gun.....


HAHHAHAHAHAHAHAH

Thought that might make you guys laugh.....</div></div>

ahh yer lerning yung padawon, i bought a hotchkiss rotating cannon cuz I saw some pawn shop dipsheets shute one

 

[KevinB-KAC]

Re: 16 inch VS 18 Inch AR10 308cal.

Rhinomax, one other addition I would offer is the veloc I have for our 20" M110 with M118LR is 2571fps (avg)

So your losing less than 60fps in 4" of barrel.


Obviously a 26-30" barrel is cool if your running 155gr Palma stuff, but for a 175gr round the 16" barrel gets the job done.

Frankly for the 700m+ range band I think that your better off with .338LM, obvious 762 can go further, but your better off with a round with more ass at distance.

 

[Rhinomax]

Re: 16 inch VS 18 Inch AR10 308cal.

Thanks kevin......

All this info has been great... Crazy that 60 fps is all there is...... I will let you guys know which one I end up with....

Thx

Rhino

 

[gyz77]

Re: 16 inch VS 18 Inch AR10 308cal.

For what's it's worth I have an SR25 EMC an love it! I also have a custom DPMS with 16" Wilson match SS barrel. EMC is hands down the best 308 all around battle/sniper platform. Just my 2 cents!

 

[Rhinomax]

Re: 16 inch VS 18 Inch AR10 308cal.

Well........ I AM DONE.....
Bought a 18 inch OBR and it came with a .529 five round group... KILLER

I put a 3.5x15x50 NPR1 nightforce on her and I am fired up...

Thanks for the help guys...

Rhino