Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Rifles, Reloading, Optics, Equipment > Rifles, Bullets, Barrels and Ballistics


Reply

Semi-Auto / AR-15 grouping question

 
LinkBack Thread Tools Display Modes
  #1  
Old 11-27-2008, 01:43 PM
Junior Member
 
Join Date: Apr 2006
Posts: 3
Semi-Auto / AR-15 grouping question

I was shooting some different loads today in my AR-15 and got some interesting results. With the same load I was seeing two distinct groups form. I believe that this is due to variations in chamber-time, or the time the round sits in the chamber warming up before firing. Is this a common thing to happen with semi-auto fire?

Elevation was pretty much the same but the two groups are about 1.5" apart. Taken by themselves, the 3 shot group is around .5" and the two shots grouped to the right are .375".

These 5 rounds were all loaded the same:

24.5gr Varget
75 grain Hornady A-Max
2.260" Cartridge OAL

Thanks in advance
Rob
Reply With Quote
  #2  
Old 11-27-2008, 04:02 PM
Platinum Member
 
Join Date: Jan 2008
Location: SOCIALIST CONTROLLED TERRITORY OF NEW YORK
Posts: 4,389
Re: Semi-Auto / AR-15 grouping question

need a lot more info?

ie. twist rate,range,manufacture,rest used as many details as possable.
Reply With Quote
  #3  
Old 11-27-2008, 07:41 PM
gbp gbp is offline
Silver Member
 
Join Date: Aug 2006
Location: California
Posts: 227
Re: Semi-Auto / AR-15 grouping question

Are you using a free float assembly?
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Similar Threads for: Semi-Auto / AR-15 grouping question
Thread Thread Starter Forum Replies Last Post
Need a new Semi Auto shotgun! matt_3479 Shotguns And Shotgunning (NOT Slugs) 19 07-18-2012 03:51 PM
Benelli Semi Auto Kevin Cooper Member Introductions 0 02-09-2009 04:29 PM
How Come no Semi Auto LR Rifles royinidaho General Discussion 9 04-23-2007 04:20 PM
Barrett Semi-Auto .50 BMG davjed Guns For Sale 6 11-29-2002 04:48 PM
semi-auto texas The Basics, Starting Out 5 01-22-2002 02:11 PM

Current Poll
Do you archery hunt for elk?
YES - 32.03%
74 Votes
NO - 51.08%
118 Votes
Not yet, but I plan to. - 16.88%
39 Votes
Total Votes: 231
You may not vote on this poll.

All times are GMT -5. The time now is 11:44 PM.


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