My lee manual has several loads for 64 grain jacketed in .223 remington, but I would have to know what you are shooting. Many cartridges use a .224 projectile.
.223 loads;
accurate 2520 starting 23.4 max 26.0
accurate 2460 starting 21.6 max 24.0
accurate 2230 starting 21.1 max 23.4
a-xmr-2015 starting 19.8 max 22.0
Good deer bullet btw. My buddy uses it for white tail and swears by it.