H4895 is too slow for a 55 grain bullet, and TAC might be, I don't know.
I have used nothing but WW748 for the past 40 years in the .223 with 55 grain bullets, so if it was me, that is what I would use.
It will give you about 200 FPS more velocity then H4895.
I can't afford to shoot Combined Technology Ballistic Silver-Tip's so I can't help you there.