Ok I have a 20in Ballistic Advantage 223 Wylde barrel I am going to start working up a load for using XBR 8208, 60gr Vmax, Lake City brass and CCI No. 400 primers. I looked in my 9th edition Hornady reloading manual. For 8208 and 60gr Vmax in 5.56 NATO it lists a max charge of 24.4. For 8208 and 60gr Vmax in 223 Rem it lists a max charge of 25.3. This struck me as very odd because it is usually the 5.56 NATO listings that have a higher max charge. The 223 Rem is a COAL of 2.26 and the 5.56 is a COAL of 2.25. Still the 8208 loadings are inverse of all the others. Almost every other powder listed under 223 and 556 show the 556 loadings as having more grains of powder.
In order to help clarify, I consulted the Hodgdon website. They list the max charge for 223 Rem (do not have a 5.56 choice) as 23.6 at a pressure of 51,700psi.
Does anyone have an explanation for this oddity in the Hornady manual? Also which charge weight should I use as my max? I lean more toward using the higher 223 Rem max.
In order to help clarify, I consulted the Hodgdon website. They list the max charge for 223 Rem (do not have a 5.56 choice) as 23.6 at a pressure of 51,700psi.
Does anyone have an explanation for this oddity in the Hornady manual? Also which charge weight should I use as my max? I lean more toward using the higher 223 Rem max.
