deershooter Posted August 25, 2015 Report Share Posted August 25, 2015 (edited) The best powder I have ever used in .223 is Winchester 748. With a magnum primer, federal brass and Seirra 2260 head , start at 24.5 grains and work up keep them 10 thou off the lands for one hole groups Deershooter Edited August 25, 2015 by deershooter Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.