There is a typo on the rates of climb and fall on the numbers listed, however i am sure that most of us get what you are saying.
I think that if you want a 22-250 then get one.. I use one, but also shoot open area's and more than 300yrds is often a possiblity.
Given that you said you have a 223, i would suggest that you look at the 53gr Vmax. It just flat out drops Coyotes where they stand, and shoots flater than most 223. Not as flat as a 250, but close enough that at 300 you are still aiming at fur, or just slightly above.
Spend $22 buy a box of the 53s from Hornady, test shoot them to see if you get a decent group and then make a choice. You can use the money you save to buy other things that are on your wish list.