Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Rifles, Reloading, Optics, Equipment > AR15/10 Rifles


Reply

Range Report 300 SAUM (Picture added)

 
LinkBack Thread Tools Display Modes
  #1  
Old 07-25-2011, 06:09 AM
Silver Member
 
Join Date: May 2007
Location: Texas
Posts: 467
Range Report 300 SAUM (Picture added)

I made it to the range today to shoot the Accuracy Systems 300 SAUM upper I had built. Here is what I had them build:

Complete new flat top upper, stainless barrel 1X12 twist 24" plus brake.
I had the barrel fluted, a 3 port Maxi Brake, and a quad forend .
Cost was $2099 (expensive I know) and it was delivered within the 8 week estimated time frame.

This is a nice piece of work and it shoots well under their guarantee of 1 MOA!

Today was 101 degrees when I headed to the range. All targets were shot at 200 yards..

Proir to going to the range I had thoughly cleaned the barrel using solvent and gray JB compound recommended by Accuracy Systems. I used the JB compound in three different applications. I also mounted a Leupold LR 8.5x25 scope on the rifle and attached my DPMS 300 SAUM lower with the JP trigger to the upper.

Once I arrived at the range I bore sighted the rifle and fired 3 fouling shots to get sighted in.

First up was 180 gr Accubonds with 65 grains of Reloder 22 powder and a 215M primer. All fired rounds were seated magazine length.

The wind was not strong, but the mirage was running strong. I ingnored it as for as compensating for it on any of the shooting.

I fired 2 shots and could not see where they impacted the target until the mirage slowed down and changed directions. Once this happened, I could see the two shots and later determined that they were 1.887" vertically and 1/2" wide. I put this rifle aside to let it cool and shot something else while I waited.

Once the barrel cooled, I fired two shots (all I had of this load) with same load except for the bullet was a 180 Hornady IL. These two shots were .835 inches tall by 1/2" wide.

I then fired 3 shots using 64 grains of Reloader 22 with 165 Hornady IL and 215M primers. These three were 1.124 wide by .893 tall.

The brake made the rifle easy to shoot. I would compare it to a 243 with an 80 gr bullet.

I did not take the chrony with me today, but I expect these loads should be around 2900 Fps for the 180's and 3000+ for the 165's. Not hot loads. All were shot in
Norma brass.

I will get some pictures of the rifle and provide the weight in a later post. A copy of the upper can be seen on Accuracy Systems website as a 325 WSM upper, but with the Maxi brake

Needless to say I am pleased with the outcome on this project. I will repeat this test with the same loads in the next couple of weeks.
Attached Thumbnails - Click to View Larger
Range Report 300 SAUM (Picture added)-accuracy-system-300-saum.jpg  

Last edited by long450; 07-30-2011 at 01:19 PM. Reason: Pictur added
Reply With Quote
  #2  
Old 07-25-2011, 07:06 PM
Silver Member
 
Join Date: Oct 2009
Location: Texas panhandle
Posts: 259
Re: Range Report 300 SAUM

sounds great, im curious if you are having to use small base dies for it.
Reply With Quote
  #3  
Old 07-25-2011, 07:11 PM
Platinum Member
 
Join Date: Jan 2008
Location: SOCIALIST CONTROLLED TERRITORY OF NEW YORK
Posts: 4,388
Re: Range Report 300 SAUM

Why 1-12 and where are the pics?
__________________
"People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf"
If you want to shoot Bergers start here!
http://www.longrangehunting.com/arti...accuracy-1.php
Reply With Quote
  #4  
Old 07-25-2011, 09:03 PM
Silver Member
 
Join Date: May 2007
Location: Texas
Posts: 467
Re: Range Report 300 SAUM

I am not using small base dies for this or any other AR I own.

Pictures I will take and post in the next few days.
Reply With Quote
  #5  
Old 08-07-2011, 10:15 PM
Silver Member
 
Join Date: May 2007
Location: Texas
Posts: 467
Re: Range Report 300 SAUM (Picture added)

The 1x12 was what Accuracy Systems recommended. It shoots very accurate with 190 SMK, and down bullets, which was used in their test target of 3 shots in .165 inchs. That is very accurate. They did not say how they test it, other than factory ammo with 190 SMK at 100 yards. . The magazine is a limiting factor on the AR 10. The large heavier bullets take up too much case powder capacity.
Reply With Quote
  #6  
Old 08-17-2011, 06:38 PM
Platinum Member
 
Join Date: Jul 2007
Location: Arkansas (Home of Record)
Posts: 1,240
Re: Range Report 300 SAUM (Picture added)

Man that is a nice rifle. It inspired me to inquire a quote to convert my existing upper. $500 to rechamber my .308 (zoinks!) or $700 for a barrel (jenkies!), $100 to open the ejection port, and $200 for the bolt (Ruh-roh Raggie!). I can see how you paid $2100 for an upper.
__________________
Courage is just fear that has said it's prayers.

The people trying to say the 2nd Amendment is outdated are probably the same folks that would say the same thing about the Bible.
Reply With Quote
  #7  
Old 08-17-2011, 09:52 PM
Silver Member
 
Join Date: May 2007
Location: Texas
Posts: 467
Re: Range Report 300 SAUM (Picture added)

Thanks! The muzle brake allows me to watch 200 yaed impacts. If should be fun this fall during hunting season.
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Similar Threads for: Range Report 300 SAUM (Picture added)
Thread Thread Starter Forum Replies Last Post
Long range hunting picture thread. please post pics. lovdasnow Equipment Discussions 129 07-10-2012 12:08 AM
Range Report on Budget 7 SAUM Build 4bycamper Rifles, Bullets, Barrels and Ballistics 0 07-06-2011 06:15 PM
Range report on 7 SAUM, 168 VLD Bergers 4bycamper Long Range Hunting & Shooting 3 01-15-2010 01:44 PM
7mm wsm--this years long range hunting system--video added now pictures added tjonh2001 Gun Photos 24 11-29-2008 12:47 PM
Range Report .300 SAUM LTR!! TrpD345 Rifles, Bullets, Barrels and Ballistics 1 11-04-2005 10:57 PM

Current Poll
Do You Think Slingshots Should Be Legalized For Hunting Brown Bear?
Yes - 47.26%
913 Votes
No - 52.74%
1,019 Vote
Total Votes: 1,932
You may not vote on this poll.

All times are GMT -5. The time now is 05:34 PM.


Powered by vBulletin ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Management Powered by vBadvanced CMPS
All content ©2010-2014 Long Range Hunting, LLC