The Firing Line Forums

Go Back   The Firing Line Forums > The Skunkworks > Handloading, Reloading, and Bullet Casting

Reply
 
Thread Tools
Old February 20, 2006, 09:17 PM   #1
VUPDblue
Senior Member
 
Join Date: December 18, 2005
Location: Central Indiana
Posts: 1,978
subsonic loads that will cycle ar15?

Anyone know of any reduced loads that will be subsonic that will actually cycle the action of an AR15? I have been able to find only one, but I am pretty sure it will not function an AR's action. There is a company out there that sells subsonic .223 that will function, but it is awfully expensive. I know that you all probably will want to tell me that ballistics of a reduced .223 suck, but quite frankly I just want to hear (or not hear, as it were) my AR being COMPLETELY silent. It is suppressed, BTW.
Thanks,
Nick
__________________
Silencers have NEVER been illegal !
VUPDblue is offline  
Old February 21, 2006, 06:02 PM   #2
Rico567
Senior Member
 
Join Date: October 19, 2005
Posts: 162
I don't know how the commercial loads do it, but to drop down to under 1200 fps (or whatever the subsonic velocity is) is a pretty good trick in a gas gun. Most reduced loadings in non-semiautos rely on a faster than normal powder, and usually some kind of filler for the rest of the case. In any event, the faster powder will produce a narrower, peakier pressure spike, and I think that's where the difficulty arises.....you can't just keep increasing the powder charge to produce more pressure, the pressure has to be spread out more over time.
__________________
"Dear reader, suppose you are a member of Congress. Now, further suppose you are an idiot. But I repeat myself."

- Mark Twain
Rico567 is offline  
Old February 21, 2006, 07:18 PM   #3
KC135
Senior Member
 
Join Date: December 12, 2004
Location: Midwest
Posts: 222
None.

Whisper will, but uses a 180 to 220gr bullet.
KC135 is offline  
Old February 21, 2006, 08:31 PM   #4
VUPDblue
Senior Member
 
Join Date: December 18, 2005
Location: Central Indiana
Posts: 1,978
The recipe I have calls for a 42gr bullet on top of 4gr Blue Dot. I tried these and they do not cycle completely. They do chrono at about 1000fps just not enough gas to do the job. I will not rest until I find the load
__________________
Silencers have NEVER been illegal !
VUPDblue is offline  
Old February 22, 2006, 07:29 PM   #5
Tacoma
Senior Member
 
Join Date: October 27, 2004
Location: SE New England
Posts: 613
I've used blue dot under a variaty of bullets from 40-55 gr. With just the right amount of BD, you can drive these bullets between 1000 and 2500 fps and still have them (a la .22 lr) quiet. Accuracy at 100 is great. Still, none I've tried will come close to cycling a std AR spring.
Tacoma is offline  
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 01:36 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
This site and contents, including all posts, Copyright © 1998-2014 S.W.A.T. Magazine
Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent: thefiringline.com
Contact Us
Page generated in 0.07462 seconds with 7 queries