I got some free bullets with my Hornady die set and since you only have a few to choose from, I opted for some rifle bullets. I got Hornady #2266 which are .224 SP 55gr with cannelure.
When I look in my Hornady Cartridge Reloading Handbook (9th Ed), and look under .223 Remington, it lists that bullet with load data. However when I look at at the 5.56 section, the bullet is not listed at all, and only boat tail bullets are listed under 5.56.
When I compare the powders for each cartridge with the same bullet weight, there are some where more powder of the same type is listed for the 5.56 and some times more powder is listed for the .223.
Is this bullet not listed under the 5.56 because it doesn't adhere to some NATO standard? If I do load this, using 5.56 brass, would I use the 5.56 data or the .223 data? Or am I just being dumb and over-complicating this?