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Posted: 12/30/2005 1:43:13 PM EDT
This rifle is built around a Krieger stainless steel DCM HBAR with a 1:7.7" twist.
Other highlights include:

- Colt upper and lower receivers
- LaRue Tacitcal 12.0" free float tube
- Leupold 4.5-14 x 50mm long range tactical scope
- JP Enterprises single stage trigger (breaks at 3.25 lbs)

The rifle with the pictured scope weighs in at 11.5 lbs.


http://home.comcast.net/~gocartmozart/krieger_larue_04_resized.jpg



http://home.comcast.net/~gocartmozart/ultimate_arx.jpg



http://home.comcast.net/~gocartmozart/ultimate_ar7.jpg



http://home.comcast.net/~gocartmozart/ultimate_ar2.jpg



http://home.comcast.net/~gocartmozart/ultimate_ar5.jpg


Link Posted: 12/30/2005 1:47:18 PM EDT
[#1]
very nice rifle


how do you like the PRS?  


IBTRR (in before the range report)
Link Posted: 12/30/2005 2:04:30 PM EDT
[#2]
The PRS is great.  It's amazing the difference a little bit of adjustment can make. The cheek-rest adjustment as seen in the pictures is set for that particular scope set-up, which places the scope in the same plane as standard iron sights.  (the line of sight is about 2.6 inches above the bore with low rings and the GG&G sight rail)..  Change the scope set-up (or just swap uppers) and you can dial in the exact number of clicks on the cheek rest to accommodate the change in scope height.
Link Posted: 12/30/2005 2:40:41 PM EDT
[#3]
That is a sweet set-up, Molon



As far as pix go..........that barrel looking rearward is wallpaper material.

Congratulations~!
Link Posted: 12/30/2005 2:40:56 PM EDT
[#4]
The PRS looks really good.  I'm just having a hard time with dropping $250+ on a stock.  It would/will go real nice with my 20" build.

Great gun btw.
Link Posted: 12/30/2005 2:49:58 PM EDT
[#5]
Nice blaster.
Link Posted: 12/30/2005 2:50:28 PM EDT
[#6]
Very nice looking rig. That's what I'm doing with my target match colt. Were you able to find a better deal than the$225.00 or so that I see them going for? (the PRS)

Gene
Link Posted: 12/30/2005 2:51:20 PM EDT
[#7]
Nice rifle.
Link Posted: 12/30/2005 2:51:54 PM EDT
[#8]
very nice
Link Posted: 12/30/2005 2:53:04 PM EDT
[#9]
GENESMITH,

I purchased the PRS directly from Magpul.
Link Posted: 12/30/2005 3:11:51 PM EDT
[#10]
Damn nice. Nice groups from your range report. Have fun with it.....I know I would.
Link Posted: 12/30/2005 3:29:07 PM EDT
[#11]
OUTSTANDING!
Link Posted: 12/30/2005 3:31:22 PM EDT
[#12]
Wonderful looking rifle.

Link Posted: 12/30/2005 4:31:43 PM EDT
[#13]
If I could build a percision rifle that would be it, cept maybe thread the barrel and add a flashhider/suppressor.
Link Posted: 12/30/2005 6:58:37 PM EDT
[#14]
Beautiful Rifle!
Link Posted: 12/30/2005 7:41:26 PM EDT
[#15]
Sweet rifle Sir! I have an upper being made by ADCO right now (but I went with the Douglas 12 Flute SDM barrel) that will be close to a clone of that when it gets here.
Link Posted: 12/30/2005 7:45:13 PM EDT
[#16]

Quoted:
Sweet rifle Sir! I have an upper being made by ADCO right now (but I went with the Douglas 12 Flute SDM barrel) that will be close to a clone of that when it gets here.



Be sure to post your evaluation of the fluted Douglas barrel.  I've been considering a fluted profile
for my next build.
Link Posted: 12/30/2005 8:05:01 PM EDT
[#17]
I must say that's quite an impressive rig!  
Link Posted: 12/30/2005 8:08:29 PM EDT
[#18]

Quoted:

Quoted:
Sweet rifle Sir! I have an upper being made by ADCO right now (but I went with the Douglas 12 Flute SDM barrel) that will be close to a clone of that when it gets here.



Be sure to post your evaluation of the fluted Douglas barrel.  I've been considering a fluted profile
for my next build.



Will do!
Link Posted: 12/30/2005 11:03:18 PM EDT
[#19]
Link Posted: 12/30/2005 11:10:31 PM EDT
[#20]

Quoted:
Very nice!  I just got a PRS and installed it on one of my long range rigs.  It was worth every penny.

And where is the picture of this new creation
Link Posted: 12/30/2005 11:19:53 PM EDT
[#21]
Link Posted: 12/30/2005 11:21:52 PM EDT
[#22]

Quoted:

Quoted:

Quoted:
Very nice!  I just got a PRS and installed it on one of my long range rigs.  It was worth every penny.

And where is the picture of this new creation



I will take some and post them tomorrow / today.  

can't wait. I really like the stock but haven't decided on a build where I would just have to have one. I am in the process of having my Mk12 MOD 0 SPR built and I went SOPMOD. We shall see though.
Link Posted: 12/31/2005 3:57:22 AM EDT
[#23]
Link Posted: 12/31/2005 4:07:19 AM EDT
[#24]
Awesome looking rifle!
Link Posted: 12/31/2005 6:01:34 AM EDT
[#25]

Quoted:
Very nice!  I just got a PRS and installed it on one of my long range rigs.  It was worth every penny.



I totally agree!
Link Posted: 12/31/2005 6:40:11 AM EDT
[#26]
Link Posted: 12/31/2005 7:09:11 AM EDT
[#27]

Quoted:

Quoted:

Quoted:
Very nice!  I just got a PRS and installed it on one of my long range rigs.  It was worth every penny.



I totally agree!




Ok, here is my custom long range SOCOM Diamond AR w/ new PRS stock.  Money well spent!

Molon, please let me know if you feel I am hi-jacking your thread and I will remove the pic.


img.photobucket.com/albums/v207/munyguru/prs8.jpg





No feelings of hi-jacking here.  Sweet lower receiver.  Give us some more details about your rifle.
Link Posted: 12/31/2005 7:15:28 AM EDT
[#28]
Link Posted: 12/31/2005 7:21:26 AM EDT
[#29]
That sure is a pretty plant!!!! Just kidding, great looking gun
                                   
Link Posted: 1/1/2006 10:08:08 AM EDT
[#30]

Quoted:





No feelings of hi-jacking here.  Sweet lower receiver.  Give us some more details about your rifle.




I didnt want to step on your ad, thank you for being so gracious.  I posted a tid-bit of info on it in the Build-It-Yourself section here:


ar15.com/forums/topic.html?b=3&f=4&t=262891




How do you like the LaRue 13.2" FF as compared to the 12" models?  I've been considering one of the 13.2" models for my next build.
Link Posted: 1/1/2006 10:11:34 AM EDT
[#31]
Nice rifle, I ordered one for my long range rig, cant wait to try it out.
Link Posted: 1/1/2006 11:33:06 AM EDT
[#32]
I will put that stock on my HBAR this year.
Link Posted: 1/1/2006 1:35:53 PM EDT
[#33]
Link Posted: 1/2/2006 6:01:56 PM EDT
[#34]
Range Report

Accuracy testing was done prior to the arrival of the Magpul PRS using an A2 stock.
Five shot groups were fired from a bench at 100 yards using front and rear rests and a Leupold VARI-X III set at 25X.  The best groups were obtained using Sierra 77 grain MatchKings and VihtaVuori powders.

http://home.comcast.net/~gocartmozart/krieger_larue_04_black_and_white_resized.jpg


Using VV N135 the best 5 shot group measured .353".
A ten shot string of this load chronographed at 2638 fps with a standard deviation of 10 fps.

Using VV N140 the best 5 shot group measured .394".
A ten shot string of this load chronographed at 2643 fps with a standard deviation of 12 fps.

http://home.comcast.net/~gocartmozart/77_smk_n135_sized.jpghttp://home.comcast.net/~gocartmozart/77_smk_n140_sized.jpg



Here are some 10-shot groups fired from 100 yards using handloaded Sierra 55 grain BlitzKings measuring .793" and .743".  (I haven't had a chance to shoot 10-shot groups with the 77 grain SMKs yet.)
http://home.comcast.net/~gocartmozart/ultimate_ar_10_shot_groups.jpg


Link Posted: 1/2/2006 6:13:24 PM EDT
[#35]
Super Sweet!!!

Link Posted: 1/2/2006 6:19:12 PM EDT
[#36]
.
Link Posted: 1/2/2006 6:40:44 PM EDT
[#37]
Very nice!

Link Posted: 1/3/2006 7:21:10 AM EDT
[#38]
to ARontheridge,

Your IM doesn't seem to be working. To answer you question, my barrel is a Krieger 20" DCM H-BAR in stainless steel.  Krieger offers many options to this barrel such as differnet twist rates, different chamber reamers used (.223 vs 5.56 match) stainless steal or chrome-molly, bead blasting, cryo-treatment, plain target crown or threaded muzzle etc.  Here is a link to their site. >>>  www.kriegerbarrels.com/RapidCat/catalog/pagetemplate.cfm?template=/RapidCat/common/viewPage.cfm&PageId=3394&CompanyId=1246
Link Posted: 1/3/2006 8:22:04 AM EDT
[#39]
my take on the concept groupings are equal when I get better optics I will test it out again...
Seems happy with Blackhills 77Gr SMKBTHP on ?? have not worked up a happy load for it yet.
Link Posted: 1/3/2006 8:37:14 AM EDT
[#40]
very nice rifles folks.  I've been contemplating on the Magpul PRS for my build as well.
Link Posted: 1/3/2006 12:50:20 PM EDT
[#41]

Quoted:
my take on the concept groupings are equal when I get better optics I will test it out again...
i30.photobucket.com/albums/c304/AFSOC/c3ed229a.jpg Seems happy with Blackhills 77Gr SMKBTHP on ?? have not worked up a happy load for it yet.



What barrel did you use in your build?
Link Posted: 1/3/2006 3:14:04 PM EDT
[#42]
CMMG SST Bull 16" 1 in 7 Stainless, Heavy Threaded Muzzle, the Muzzle nut doubles as a Rebar cutter if needed.... Groups better than the shooter, unfortunately since Chemo I am not as steady of hand as I used to be....

Parts are CMMG Lower receiver currently with stock trigger slightly "Tuned"
I plan to switch to a Jard or JP FCG unless I can find a CMC drop in unit...
Upper is all CMMG Shrouded Carrier, Bolt is standard, Forend is YHM Ultralight Mid length.
Magpul rail panels, Harris Benchrest Bipod, The Mount is a generic Steel mount... in the future I plan to put some good glass on it instead of the BSA "Better Stuff Available" 4-16x40 Mil Dot. Just changed jobs and after the Doctors bills I plan to save a little bit up and get a Leupy with the same type mount as yours... Grip is a Fobus "G-27" not what I wanted but what was available at the time...
Wanted the DPMS PSG1 style... but this one is quite comfy...
It grouped under a dime at 100 with sorry optics prior to the BSA with the blackhills ammunition...
I plan to build some rounds with a Cannelured 77gr SMK bullet Federal Small rifle primer and 24.1 Gr RL15 powder will see how it prints with that.... at 100 and on the 14th I will see how it does at 300 and 600 too...
Link Posted: 1/4/2006 7:52:00 AM EDT
[#43]

Quoted:
CMMG SST Bull 16" 1 in 7 Stainless, Heavy Threaded Muzzle, the Muzzle nut doubles as a Rebar cutter if needed.... Groups better than the shooter, unfortunately since Chemo I am not as steady of hand as I used to be....

Parts are CMMG Lower receiver currently with stock trigger slightly "Tuned"
I plan to switch to a Jard or JP FCG unless I can find a CMC drop in unit...
Upper is all CMMG Shrouded Carrier, Bolt is standard, Forend is YHM Ultralight Mid length.
Magpul rail panels, Harris Benchrest Bipod, The Mount is a generic Steel mount... in the future I plan to put some good glass on it instead of the BSA "Better Stuff Available" 4-16x40 Mil Dot. Just changed jobs and after the Doctors bills I plan to save a little bit up and get a Leupy with the same type mount as yours... Grip is a Fobus "G-27" not what I wanted but what was available at the time...
Wanted the DPMS PSG1 style... but this one is quite comfy...
It grouped under a dime at 100 with sorry optics prior to the BSA with the blackhills ammunition...
I plan to build some rounds with a Cannelured 77gr SMK bullet Federal Small rifle primer and 24.1 Gr RL15 powder will see how it prints with that.... at 100 and on the 14th I will see how it does at 300 and 600 too...hr


I have a Jard non-adustable trigger and while it is an excellent trigger I think the JP is better suited to use in this type of weapon.  The Jard has a very long take-up compared to the JP.  The JP does require a little time setting it up, but that's the beauty of it.  You can get it set just the way you want it.  (have an extra disconnector on hand in case you mess it up the first time you install one of these triggers)

I have JP triggers in 3 of my ARs and have a total of over 55,000 rounds fired in those weapons combined and have not had any problems with the JP triggers.  One thing you do need to be aware of when using the JP trigger; sometimes the yellow hammer spring will not ignite some of the harder military primers.  If you must use ammo with these types of primers just use the regular hammer spring instead of the yellow one.

I have used Reloder 15 with 77 SMKs with good results.  My hottest load of R-15 gave a muzzle velocity of 2620 fps from my 20" Krieger.  This powder does seem to have a slower pressure curve than the VV powders I have used with the 77 SMKs and will work the action a little harder.  Be sure to post your results with your new load!

Link Posted: 1/4/2006 8:19:28 AM EDT
[#44]

Quoted:
very nice rifles folks.  



+1
Link Posted: 1/4/2006 10:35:47 AM EDT
[#45]
A beaut...
Link Posted: 1/4/2006 2:44:54 PM EDT
[#46]
range report updated
Link Posted: 1/4/2006 4:33:17 PM EDT
[#47]

Quoted:
range report updated



Looks like I might be able to get you that range report this Sunday! But I won't have my batch of bullets yet... so the report will just be with Blackhills 77SMK....
Link Posted: 1/4/2006 4:54:02 PM EDT
[#48]
Nice rifle
Link Posted: 1/4/2006 5:16:18 PM EDT
[#49]

Quoted:

Quoted:
range report updated



Looks like I might be able to get you that range report this Sunday! But I won't have my batch of bullets yet... so the report will just be with Blackhills 77SMK....



Sounds good.
Link Posted: 1/4/2006 5:49:02 PM EDT
[#50]

Quoted:
range report copied into this thread

Accuracy testing was done prior to the arrival of the Magpul PRS using an A2 stock.
Five shot groups were fired from a bench at 100 yards using front and rear rests and a Leupold VARI-X III set at 25X.  The best groups were obtained using Sierra 77 grain MatchKings and VihtaVuori powders.

home.comcast.net/~gocartmozart/ultimate_ar3.jpg

Using VV N135 the best 5 shot group measured .353".
A ten shot string of this load chronographed at 2638 fps with a standard deviation of 10 fps.

Using VV N140 the best 5 shot group measured .394".
A ten shot string of this load chronographed at 2643 fps with a standard deviation of 12 fps.

home.comcast.net/~gocartmozart/77_smk_n135_sized.jpg home.comcast.net/~gocartmozart/77_smk_n140_sized.jpg



Here are some 10-shot groups fired from 100 yards using handloaded Sierra 55 grain BlitzKings measuring .793" and .743".  (I haven't had a chance to shoot 10-shot groups with the 77 grain SMKs yet.)
home.comcast.net/~gocartmozart/ultimate_ar_10_shot_groups.jpg





Looks to me like you did not need the stock if you shot those groups with out it.  Nice rifle and nice shooting.
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