two schools of thought here; either use mil-surp. components bought in bulk or a cast and gas checked lead with trail boss or rl7. I use rl7 and a gc lead pill in my 375 and it'll do 1.5 moa easily. If you can't or won't get into casting a plated pill would do well also, but you will probably have to treat those like lead anyway as far as powder charges. I doubt you'll have good accuracy luck with a short jacketed bullet and they don't cost much less than a 125 or 150 grain plain jane hornady or sierra fb anyway. Still another way to feed 'em cheaper is to wait for a blem bullet sale. Most of those are simply the ugly ones from a bullet run.