Forums
New posts
Search forums
What's new
Articles
Latest reviews
Author list
Classifieds
Log in
Register
What's new
Search
Search
Search titles and first posts only
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Semi-Auto / AR-15 grouping question
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="rgonz8" data-source="post: 242861" data-attributes="member: 5885"><p>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? </p><p></p><p>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".</p><p></p><p>These 5 rounds were all loaded the same:</p><p></p><p>24.5gr Varget</p><p>75 grain Hornady A-Max</p><p>2.260" Cartridge OAL</p><p></p><p>Thanks in advance</p><p>Rob</p></blockquote><p></p>
[QUOTE="rgonz8, post: 242861, member: 5885"] 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 [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Semi-Auto / AR-15 grouping question
Top