I have some Hornady.227 bullets, 70 grain spitzers. Have 6 or 7 unopened boxes of them I bought about 30 years ago. Should I use those or find some .228, or won't it really matter? Based on the comments above that .228 is mostly ideal and .224 will work ok, shouldn't the .227 be pretty good for this round?

Thanks for all the input. I have much to learn here.

Bob