Ignoring, the usual rubbish,
I shoot quite a lot of rabbits with mine out to 300 yards. They're a small target at that range so you need to know what the rifle is doing. I use 40 grn BTs and zero at 200 yards. This gives me effectively point and shoot from 150 to 250 yds with small easily judged holdover to 300 which is the range spread where it sees most action. There's no point saying how high I zero at 75 or 100 yards because different rifles, different twists and different ammo will give different results, so you have to find out for yourself. Set zero at true distance and and shoot at 25 yd intervals from 50 yds to 300. Do it on graph or grid paper and you've plotted the precise trajectory for your rifle/ammo set-up.
I shoot foxes with the same ammo and as most will be lamped they are rarely further than 150 yds, so with that zero and chest or ribcage shots its point and shoot for my foxing needs as well.
Thats extraordinarily good shooting, bunnies at 300 yds, what scope are you using?
Ignoring, the usual rubbish, and assuming normal 222 velocity of 3100-3200FPS with a 50gr bullet, 1" high at 100 yards will leave you 1" low at 200 and that is perfect for 99.something% of what you will ever do with a 222.
Other than you need to be more precise. An inch group at 50 is 4" at 200 don't forget.