Losing my mind

[crabwearer]

I managed to get my hands on some N530 to use in my .223s. I plan on loading some Winchester 64gr PP but can't find any data to get me started. I can find 62gr FMJ and 69gr HPBT in Viht's data page but that's it. My Hornady, Nosler and Speer books barely even have N530 at all. Can anybody help me out?

 

[chris in va]

I'd just use the 69gr data to be on the safe side. Other guys will chime in. Nothing listed in my Lyman manual.

 

[Mike 27]

+1 using a heavier wt projectile should put you in a safe range and work up checking normal signs. This is talked about in some of the reloading manuals, I think I read it in the Hornady or Lyman books, but could have been somewhere else.