223 Upper in 1-12 twist what weight

[338RUM runner]

Just got a RRA 24" 1-12 upper and need to know what my choice in MAX bullet weights are. Thanks for your help.

 

[bricktop]

Re: 223 Upper in 1-12 twist what weight

Probably around 60 grains.


http://www.jbmballistics.com/cgi-bin/jbmstab-5.1.cgi
+
http://www.shootforum.com/forum/bulletdb.html

 

[338RUM runner]

Re: 223 Upper in 1-12 twist what weight

Bricktop thanks thats just what i needed (jbm)