I ran an 8x36 years back, yes an M8 with a 36 that was PA for 300 yds, was made for a short while, it worked perfect on a Mohawk 222. Later ran a straight 12x on a 223 Varmint, a 10 was just not quite enough to use it's range, but never lacking with 12x, a Premier reticle, tapered CH was perfect, had target knobs of course on that 12x M8.

I would be very content with a 3-9x or 3-10x on that 222, if it's a sporter, nothing over 4-12x for me...on the Hornet, nothing more than 9-10x on the top end would be enough for me. I tend to prefer an AO on anything over 10x.