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.250" Groups - Is it possible?

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Unread 06-16-2011, 08:30 PM
Bronze Member
Join Date: Jun 2011
Posts: 84
.250" Groups - Is it possible?

I have been building loads for my Custom AR-15 rifle for about 2 years on and off, below is a link to my load data spreadsheet.


Left Side Pic
Right Side Pic

Through alot of reading I find that most have a hard time getting .500" groups at 100yrds, that being said, it's very easy for me to get 1/2 MOA as seen by the spreadsheett (in pdf format for everyone)
So I'm looking for people who have personally gotten the .250" groups I'm looking for, and to share some secrets, load data, and parts.
Thanks, I hope there is someone out there getting these groups.

Reloading Equipment:
Bonanza (Forster) CO-AX
Redding Comp Dies
RCBS Powder thrower

My AR-15 Build:
DPMS Upper w/ 20" DPMS BBL
Double Star Lower
Les Baer Bolt Carrier group
Magpul PRS Stock w/ mono-pod
Tubbs Flatwire buffer spring
JP Trigger
JP Adjustable gas block
JP Float tube
JP expanding take down pin
Ergo Grip
Burris Black Diamond 8-32x50 on Burris tactical rings

I'm looking at getting a nice billet lower, other than that, can anyone point me in the directions of any better parts..?

I think I named all the parts....


Also to show you I can shoot here is some info on my baby... my Cooper .223

Cooper Load Data

Cooper Pic

Last edited by B-RAD; 06-18-2011 at 04:11 PM.
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Unread 07-14-2011, 10:08 PM
Junior Member
Join Date: Jul 2011
Posts: 5
Re: .250" Groups - Is it possible?

Its been donestag arms mod 6 varmiter 24in bull barrel bone stock accept for honing trigger brass 75gr hornady bthp over 23.5gr of varget, lit with cci 450, lenght 2.270. three shots measured .167 .gun is 2 weeks old just got i am a 1k benchrest shooter with a bad case of OCD. i can make anything shoot,if it dosen't shoot when i get done with it i can garrentee you its ether junk or there is somethinking realy wrong with it.I am still working up other loads at this time but this one may be a keeper.good luck in your .250 quest
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Unread 07-15-2011, 01:38 PM
436 436 is offline
Gold Member
Join Date: Mar 2009
Location: NorthWest
Posts: 646
Re: .250" Groups - Is it possible?

I would agree; .250" inch (3) & (5) shot groups from AR platform has been and can be done... The real question should be; "can it be done consistently time after time". Other wise it's just another good group for that day on the range.
Good luck
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.250" Groups - Is it possible?-80gr-berger-24.5grs-n150-wsr-ww-case-2900-fps-ar-.223-custom-100-yards-002.jpg  

Last edited by 436; 07-15-2011 at 01:44 PM.
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Unread 07-15-2011, 02:28 PM
Platinum Member
Join Date: Nov 2005
Location: Texas
Posts: 1,844
Re: .250" Groups - Is it possible?

The Truth Is Not Always Good For Business!!

Last edited by Boss Hoss; 11-09-2011 at 07:06 AM.
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Unread 07-15-2011, 03:39 PM
Gold Member
Join Date: Dec 2002
Location: mathias wv
Posts: 987
Re: .250" Groups - Is it possible?

3 shots from my RRA varminter at 102 yards, doesn't do it every time but often enough for me to call it a quarter inch gas gun, to work up this load I get the cabela's book and order ultra-max ammo loaded with 55 gr softpoints by the 1/2 case.
Born to Hunt, Forced to Work!
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Unread 07-15-2011, 04:46 PM
Platinum Member
Join Date: Jan 2008
Location: Northeast
Posts: 2,955
Re: .250" Groups - Is it possible?

I have shot several 5 shot quarter inch groups at 100 yards with two of my uppers. Every time ,no, but pretty consistent over the long haul. I use these for 200 and 300 yard egg shoots. They compete well with the bolt rifles.

I use the same lower for both of these uppers. Colt with a Rock River Match Trigger with a JP spring kit set at 3.5#. Everything else is stock except for lead weighted A2 stock. Have to make sure there is NO play between upper and lower. I like to use a modified red plastic wedge that's available from Brownels. I drill a 1/8 hole through the base and cut a S&W rebound coil spring 5 coils and stick it in the center. The plain plastic fatigues over time. The spring keeps it tight.

Upper one: DPMS 24" heavy stainless 223, 1:9 twist. Lapua brass, CCI BR primer, 25gr Varget, 69gr. Sierra BT Match bullet. FL RCBS X Dye. Nightforce NXS 8x22

Upper two: Whitely 6mmAR. 24" heavy Hart Barrel, DPMS heavy walled receiver. 1:8 twist. Lapua 6.5 Grendel necked necked down to 6mm, CCIBR primer, 28.2gr R-15. Sierra 107gr Match bullet. Custom Redding FL Dye and seated. 8x32 Nightforce Benchrest.
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Unread 07-16-2011, 09:59 AM
Platinum Member
Join Date: Feb 2009
Location: Sedalia, MO
Posts: 1,253
Re: .250" Groups - Is it possible?

Actually, they'll do better than this pretty regularly, if the gun is set up properly and fed good ammo. I have a good friend, John Feamster, who shot an "Official Screamer" group in a registered Benchrest competition; that's five rounds in under .1", witnessed and verified by the match officals. Pissed off a bunch of the benchresters, too. John is one of the loading techs in AMU's Custom Ammo shop that Troy Lawton runs at Ft Benning, so he knows a thing or two about putting together accuate ammo for the AR platform.

The .250 mark is a pretty tight standard to work with, and requires good gear and proper prep all the way around, as well as some good shooting and decent conditions. AR's that will regularly do .5" and under are pretty common these days, and anything approaching .75" to 1 MOA would leave me evaluating and asking, "what's gone wrong with this gun?"
Kevin Thomas
Lapua USA
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