1911Forum
Forum   Reviews   Rules   Legal   Site Supporters & Donations   Advertise


Go Back   1911Forum > Other Firearms & Tools > General Rifles and Shotguns


Reply
 
Thread Tools Display Modes
  #1  
Old 04-25-2002, 08:29 PM
swatman swatman is offline
Member
 
Join Date: Jan 2001
Location: Pa
Posts: 152
1-12" twist in .223 ok for 62 grain FMJ?




I was looking at a Remington 700 in .223. Was thinking of trading in my Rem 700 in .222 for the .223 mainly due to cheaper/more available surplus .223 which would give me more trigger time.
How do you guys think a 62 grain SS109 or lead core bullet will perform accuracy wise with the 1-12 twist?
__________________
"I do not set much value on the friendship of people who do not succeed in getting disliked by their enemies."

www.humanityonhold.com/intifada.html
Reply With Quote
  #2  
Old 04-25-2002, 08:54 PM
brindlpitt1 brindlpitt1 is offline
Member
 
Join Date: Jan 2002
Location: ohio
Age: 48
Posts: 451
don't know if this will help you or not but it might answer your question
from the results they got id rebarrel it



http://www.accuratereloading.com/223heavy.html
Reply With Quote
  #3  
Old 04-26-2002, 12:19 AM
lejarretnoir lejarretnoir is offline
Member
 
Join Date: Aug 2001
Location: Canada
Posts: 345
The SS 109 will not stabilize in a 1-12" twist, but the standard Winchester 62gr soft point bullets or Berger 62gr hollowpoints will. You need a 1-9" twist to properly stabilize the SS109 military round. I have the same rifle in 1-12" twist.
Reply With Quote
  #4  
Old 04-26-2002, 08:15 AM
T. Kanaley's Avatar
T. Kanaley T. Kanaley is offline
Member
 
Join Date: Mar 2001
Location: Boise, Idaho, USA
Posts: 1,891
This is copied straight off the Shilen website. Recommended bbl twist for .224 cal by bullet weight.

8" Twist for bullets heavier than 70 gr.
9" Twist for bullets up to 70 gr.
12" Twist for bullets up to 63 gr.
14" Twist for bullets up to 55 gr.
15" Twist for bullets up to 55 gr. driven 4,100 fps or more
16" Twist for bullets up to 55 gr. driven 4,300 fps or more

http://www.shilen.com/calibers.htm

TK
__________________
www.miltsparks.com
Reply With Quote
  #5  
Old 04-26-2002, 12:52 PM
swatman swatman is offline
Member
 
Join Date: Jan 2001
Location: Pa
Posts: 152
I have heard that you shouldn't use MIL-SURO ammo in remington 700 223s anyone do this?
__________________
"I do not set much value on the friendship of people who do not succeed in getting disliked by their enemies."

www.humanityonhold.com/intifada.html
Reply With Quote
  #6  
Old 04-26-2002, 02:47 PM
Rosco Benson's Avatar
Rosco Benson Rosco Benson is offline
Super Moderator
 
Join Date: Mar 2000
Posts: 2,877
The SS109 is long for its weight, due to the "penetrator" inserted therein. It won't stabilize in 1:12.

Rosco
Reply With Quote
  #7  
Old 04-26-2002, 04:14 PM
Wild Romanian Wild Romanian is offline
Banned
 
Join Date: Jul 2001
Location: Ohio,USA
Posts: 328
Rifles are strange creatures indeed. My Mini 14 will stabilize the military rounds and it has a 1-10 twist.

Get this. My 1-9 Model 70 will shoot 75 grain Hornady's but my 1-9 AR-15 will not. Same twist, in both guns and both are stainless barrels yet one works with the 75 grainers and one does not no matter what powder or velocity I use.

Keep the velocity up if possible for heavy bullets One trick that I used to get the Model 70 with the 1-9 twist to work was to use a slower burning powder (4895) than what I had been using (BLC2) and I stoked the cases up with a maximum charge of 4895 powder to get the velocity up. The result was some very good groups in my Model 70. Unfortunately it did not work with my AR15. W.R.
Reply With Quote
  #8  
Old 04-26-2002, 06:05 PM
Gary W Trott Gary W Trott is offline
Senior Member
 
Join Date: Aug 2000
Location: West Warwick, RI
Age: 61
Posts: 3,049
Quote:
Originally posted by swatman
I have heard that you shouldn't use MIL-SURO ammo in remington 700 223s anyone do this?
Dear swatman,

You might be interested in scrolling down a little ways to the post "5.56 Nato VS. .223 Rem.". It contains a description of the difference between the two rounds. Stay safe, Gary
__________________
"What I want most from the government is to be left alone." GWT
"Don't take my, or anyone else's, word for anything. Look it up for yourself." William Cooper on The Hour of The Time
http://CleanAndSafeGuns.com
Reply With Quote
  #9  
Old 04-30-2002, 08:18 PM
CTI1USNRET CTI1USNRET is offline
Member
 
Join Date: Feb 2002
Location: New Hampshire
Age: 56
Posts: 343
Rifling required to stabilize (math)

From my memory of high school physics 30 years ago. I was into ballistics even then.

The longer a bullet is relative to its diameter the greater its tendency to change rotational axis (tumble), hence a tighter twist (higher rpm) is needed compared to a shorter bullet of equal weight.

(180 x d x d) / L

result will show minimum twist required to stabilize bullet.

where

d = diameter in inches
L = length in inches

SS109 (62 grains)
d - 0.2245"
L - 0.917"

A twist tighter than 1 in 9.893 inches is required to stabilize this bullet.

-----

M193 (55 grains)
d - 0.2245"
L - 0.755"

A twist tighter than 1 in 12.016 inches is required to stabilize this bullet.
__________________
Steve

LIVE FREE OR DIE
http://americanslivingfree.com/
Comments on our rights
Reply With Quote
  #10  
Old 05-01-2002, 03:00 PM
swatman swatman is offline
Member
 
Join Date: Jan 2001
Location: Pa
Posts: 152
Well, I picked up the rifle last weekend. I put some 55 grain Varmint dusters and 55 grain American Eagle through it so far. It shoots very well, I am currently in the process of breaking in the barrel. I am pleased with this rifle and I know I will be more so when the barrel is compleately broken in. Thanks for all the responces, I think for the most part, I will stay with the lighter bullets.
__________________
"I do not set much value on the friendship of people who do not succeed in getting disliked by their enemies."

www.humanityonhold.com/intifada.html
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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 04:27 AM.


NOTICE TO USERS OF THIS SITE: By continuing to use this site, you certify that you have read and agree to abide by the Legal Terms of Use. All information, data, text or other materials ("Content") posted to this site by any users are the sole responsibility of those users. 1911Forum does not guarantee the accuracy, integrity, or quality of such Content.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 2011 1911Forum.com, LLC. All Rights Reserved