Sure I can save a few cents loading 223 instead of 22-250, but I shoot both calibers, and have no less than 2000, .223 loaded, and around 500-700, 22-250 loaded. Both calibers are loaded with Hornady 55gr. V-Max for hunting, and 55gr. Hornady soft points for general plinking.
Buy whatever your budget allows at this stage of you life, and upgrade later when you have a little more bank. Good Luck,----Riflemann