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tpcollins · June 21, 2012, 07:41 AM

The SAAMI case length for .243 Winchester is 2.025"-2.045". In .204 Ruger it's 1.830"-1.850". Both of these have a range of .020". However, the spec for the .223 is listed as 1.730"-1.760" which is a .030" range. If my math is correct, it doesn't appear that either length will allow for a full caliber length of bullet seating in .223.

If you're reloading for an AR, is there any advantage to one end of the specification versus the other? Thanks.

June 21, 2012, 07:41 AM	#1
tpcollins Senior Member Join Date: February 18, 2009 Location: SE Michigan Posts: 558	Question about .223 case length The SAAMI case length for .243 Winchester is 2.025"-2.045". In .204 Ruger it's 1.830"-1.850". Both of these have a range of .020". However, the spec for the .223 is listed as 1.730"-1.760" which is a .030" range. If my math is correct, it doesn't appear that either length will allow for a full caliber length of bullet seating in .223. If you're reloading for an AR, is there any advantage to one end of the specification versus the other? Thanks. __________________ What direction did that last shot at Kennedy come from?