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View Full Version : Help deciding on next build (DMR vs SPR)


dlouie87
10-28-2008, 10:37 AM
So basically it's between a 18'' vs 20''...my first build was done with a 16'' upper from Stag. And what is their a specific twist i should shoot from (1/8 vs 1/7) if I want to use 69 or 77grain with a occasional use of 55grain if possible since I stocked up on so much.

Let me know what you would do.

Here is what I had in mind and I would like some opinions.

- 18'' SPR SS barrel (1/7) from WOA on a WOA upper receiver with 12'' Larue Rails

- Larue 18'' SS barrel with 13.2'' FF Rails with Larue Upper (1/8 twist)

- CMMG 18'' upper (chrome lining) with DD rails.

-20'' Larue upper (1/8)

-20'' WOA upper (national match)


here's a pic of my last build:
http://i49.photobucket.com/albums/f292/dlouie87/IMG_0008.jpg

-Dan

Jicko
10-28-2008, 11:15 AM
Just buy an upper from Troy! Top notch stuff.

18" Troy Perimeter Rifle Upper, $1145 IIRC
- Troy Front & Rear BUIS
- Troy FF Rail
- SS 1/8 Match barrel
- you can even get FDE version!!!

WHTXJ89
10-28-2008, 12:01 PM
im picking up my upper that that Addax put together for me. its a 20" WOA SS match grade DM-R barrel 1/8 twist, WOA upper receiver, a Daniel Defense 12" lite rail and Daniel Defense gas bock ill post pics tomorrow. for 69g - 77g a the 1/7 twist might be a little to fast and if your thinking about shooting 55g then your better off with the 1/8 twist..

dlouie87
10-28-2008, 12:07 PM
do you mind pm' me the price you paid for that @ ADDAX?

aplinker
10-28-2008, 1:56 PM
I'd pick 18" over 20", but the rest is still the same...

Unless you really want to build a Mk12mod0 (which are beautiful and would be my choice :) ).

Just go rifle gas with your 18" barrel.

The other big difference is a true SPR uses an OPS Inc brake/collar - which isn't cheap.

sb_pete
10-28-2008, 3:06 PM
If I were in your shoes (lucky you), I would go with something along the lines of a DMR build (although I wouldn't want a clone).

Skip the chrome lined barrels and go with an SS 20" bbl, DMR contoured and fluted. If you can afford it get something cool like a Krieger Cut rifled barrel or Rock 5r or one of those Superior Barrels hard blued Lothar Walther polyganols

Go with whatever FF rail system you prefer. I would go for one of the lighter weight ones.

I would try out an LMT SOPMOD or Magpul UBR for the stock. And one of these buffer springs (http://www.superiorshootingsystems.com/AR_15_PRODUCTS-AR15_Buffer_Springs.html) to get rid of the twang.

I would go for one of those Nightforce NXS 2.5-10x24mm mil dot scopes on the LaRue mount with a docter optic or Aimpoint micro T1 riding on top with KAC BUIS.

Now that would be a sweet DMR!:cool:

Addax
10-28-2008, 3:17 PM
We just built this one for a customer, and it is a DI upper ;)

(The lower, scope and bipod are mine, I just used them for taking the pics)

SDM Style Upper (minus the Front Site Post):

White Oak Armament 20" SDM Rifle Length Barrel 1:8 Twist, Wylde Chamer, Bead Blasted Stainless
Daniel Defense 12.0 Lite Rail
Daniel Defense Lo-profile gas block
White Oak Flat Top Upper with M4 feed ramps
White Oak Semi Auto BCG

http://i216.photobucket.com/albums/cc137/addax/IMG_0073-1.jpg

http://i216.photobucket.com/albums/cc137/addax/IMG_0075-1.jpg

http://i216.photobucket.com/albums/cc137/addax/IMG_0077-1.jpg

dlouie87
10-28-2008, 7:02 PM
ADDAX, that looks nice.

can you pm me a build you would do with a 18'' and no front sight and FF rails?

-Dan

aplinker
10-28-2008, 7:14 PM
ADDAX, that looks nice.

can you pm me a build you would do with a 18'' and no front sight and FF rails?

-Dan



Mk12 mod 0
http://www.snipershide.com/forum/ubbthreads.php?ubb=showimage&id=836&type=f

Cypriss32
10-28-2008, 7:22 PM
Why copy military stuff? Build what you want with your parts you want!
I ran some of these suckers:
RRA NM upper TRoy free float
Noveske 18" SPR barrel JP free Float
Pacnor 20" Service Rifle JP free Float
http://i6.photobucket.com/albums/y230/adam5432002/100_0981.jpg

dlouie87
10-28-2008, 7:33 PM
Why copy military stuff? Build what you want with your parts you want!
I ran some of these suckers:
RRA NM upper TRoy free float
Noveske 18" SPR barrel JP free Float
Pacnor 20" Service Rifle JP free Float


was your noveske a SS barrel and wylde chamber and 1/8 twist? I 'm looking at those right now...pretty nice.

Cypriss32
10-28-2008, 7:46 PM
Its 1-7 tw i think..... My RRA was Wylde and 1-8. The noveske says:
Noveske 5.56 NMm0 7PT

dlouie87
10-28-2008, 7:47 PM
ok... I'll look into it. I'll probably have Addax build one.

Cypriss32
10-28-2008, 7:49 PM
Um DO NOT build a GPU precision rifle, your are waisting money. Just buy a Novekse Complete upper from them.... I just happin to steal this barrel (got a super price!)

dlouie87
10-28-2008, 7:53 PM
I'm going with DI and not Gas piston. The noveske barrels are pricey but if i can't find a 18'' in 1/8 twist, i'll just go with a 1/7 twist...still able to shoot 69-77 grain fine right?

windsheer
10-28-2008, 7:54 PM
UCLA PLINKER
I WANT THAT

Cypriss32
10-28-2008, 7:57 PM
Ya... I ran my 1-8 with 77gr MK's... Look for a NM barrel from RRA or WOA and build from there. The JP's Are nice, they save weight major... My Service rifle barrel is very light compaird to the last one i had.

dlouie87
10-28-2008, 8:01 PM
thanks for all the good info. I'll talk to Addax and see what they can do. Upper receivers are the same? or should I go with like vltor?

Addax
10-28-2008, 10:16 PM
Um DO NOT build a GPU precision rifle, your are waisting money. Just buy a Novekse Complete upper from them.... I just happin to steal this barrel (got a super price!)

The one we built is DI, not GPU..;)

aplinker
10-28-2008, 11:55 PM
thanks for all the good info. I'll talk to Addax and see what they can do. Upper receivers are the same? or should I go with like vltor?

I wouldn't do the VLTOR unless you have money to burn. Put the money into the barrel and trigger.

If you have extra, then add the VLTOR.

Think about what you want the rifle to do. Adam's right about the VTAC/JP handguard - they're a great value and excellent performers.

You'll be fine with 1/7 or 1/8. Noveske picks 1/7 to be mil-spec. Go with 1/8 if you can - it will give you more options in bullets.

I have a love for the Mk12 mod 0 - it's the rifle that led me to Calguns a few years back. :) There's no reason you need to limit your build to what an SPR or SDMR are. Get what you need to make it shoot how you want.

If you want to save money, the WOA Service rifle barrel and a VTAC handguard will build a tack driver.

GaryPowersLives
10-29-2008, 9:58 AM
Mk12 mod 0
http://www.snipershide.com/forum/ubbthreads.php?ubb=showimage&id=836&type=f


UCLA Plinker, who makes that handguard and top rail? And do they make it in AR/10 or 308 (DPMS) configs?

dlouie87
10-29-2008, 10:14 AM
I wouldn't do the VLTOR unless you have money to burn. Put the money into the barrel and trigger.

If you have extra, then add the VLTOR.

Think about what you want the rifle to do. Adam's right about the VTAC/JP handguard - they're a great value and excellent performers.

You'll be fine with 1/7 or 1/8. Noveske picks 1/7 to be mil-spec. Go with 1/8 if you can - it will give you more options in bullets.

I have a love for the Mk12 mod 0 - it's the rifle that led me to Calguns a few years back. :) There's no reason you need to limit your build to what an SPR or SDMR are. Get what you need to make it shoot how you want.

If you want to save money, the WOA Service rifle barrel and a VTAC handguard will build a tack driver.

How long are the service rifle barrels? http://www.whiteoakarmament.com/index.htm

Also what advantages does a wylde chamber gives a shooter? Would I still be able to shoot 5.56 and .223 ( and cheap ammo once in a while?)

-Dan

Jicko
10-29-2008, 10:59 AM
UCLA Plinker, who makes that handguard and top rail? And do they make it in AR/10 or 308 (DPMS) configs?

PRI HG
ARMS SWAN rail

Cypriss32
10-29-2008, 1:16 PM
Ill snap some pics for you in a few hours with both uppers put together.

aplinker
10-29-2008, 2:26 PM
How long are the service rifle barrels? http://www.whiteoakarmament.com/index.htm

Also what advantages does a wylde chamber gives a shooter? Would I still be able to shoot 5.56 and .223 ( and cheap ammo once in a while?)

-Dan

20"

Wylde gives the accuracy of .223 with the reliability of 5.56.

dlouie87
10-29-2008, 10:41 PM
awesome. I'll be calling chris @ addax tomorrow to see if we can get started on this build. It's probably going to go on a CMMG lower with a RRA stage trigger. Also, FDE or BLACK??

what about a CMMG 18" 1:8 Twist, chrome lined barrel? or stick with WOA SS barrels....since they dont have a 18'' 1/8 twist I might have to get the 20''

Cypriss32
10-29-2008, 11:33 PM
18" Noveske SPR barrel, JP rifle lengh, 4x 4" rails, Leupold 3.5-10x 40mm M3 soon, Larue QD mount and flip up sights.
http://i6.photobucket.com/albums/y230/adam5432002/Picsfrom10-3008001.jpg
http://i6.photobucket.com/albums/y230/adam5432002/Picsfrom10-3008002.jpg
http://i6.photobucket.com/albums/y230/adam5432002/Picsfrom10-3008003.jpg
20" Pacnor Super MAtch, JP free Float, Badger 22MOA riser, Badger Rings, Leupold 6.5-20x 50mm LRT
http://i6.photobucket.com/albums/y230/adam5432002/Picsfrom10-3008004.jpg
http://i6.photobucket.com/albums/y230/adam5432002/Picsfrom10-3008005.jpg
http://i6.photobucket.com/albums/y230/adam5432002/Picsfrom10-3008006.jpg

dlouie87
10-30-2008, 10:02 AM
adam B. , That looks good. How do they shoot?

kermit315
10-30-2008, 10:29 AM
Addax, what does that upper cost? I might be trying to convince the wife to let me get one for my next build.

We just built this one for a customer, and it is a DI upper ;)

(The lower, scope and bipod are mine, I just used them for taking the pics)

SDM Style Upper (minus the Front Site Post):

White Oak Armament 20" SDM Rifle Length Barrel 1:8 Twist, Wylde Chamer, Bead Blasted Stainless
Daniel Defense 12.0 Lite Rail
Daniel Defense Lo-profile gas block
White Oak Flat Top Upper with M4 feed ramps
White Oak Semi Auto BCG

http://i216.photobucket.com/albums/cc137/addax/IMG_0073-1.jpg

http://i216.photobucket.com/albums/cc137/addax/IMG_0075-1.jpg

http://i216.photobucket.com/albums/cc137/addax/IMG_0077-1.jpg

dlouie87
10-30-2008, 12:08 PM
btw, one more question on the Larue upper vs a Addax WOA build.

are they both sub moa rifles with the same shooter and ammo because I know Larue has a guarantee that it'll before like a sub moa rifle.

and on a SS barrel, would it be bad using cheap ammo like barnaul, etc?

-Dan

aplinker
10-30-2008, 3:56 PM
WOA barrels will be sub-moa shooters. You'll need to use match ammo to shoot that, though.

It's not bad to use cheap ammo, but it's like putting 87 in a tuned track car.

Addax
10-30-2008, 4:39 PM
WOA barrels will be sub-moa shooters. You'll need to use match ammo to shoot that, though.

It's not bad to use cheap ammo, but it's like putting 87 in a tuned track car.

+1, Plinker is right. WOA barrels will be SUB-MOA shooters, and please don't run cheap ammo through a nice upper and barrel, that defeats the purpose of having a tack driving upper then.

dlouie87
10-30-2008, 5:30 PM
ok...I'll use my stag to plink :D