Is the Rcbs rebel master reloading kit a good place to start? My son has an AR that he would like to start shooting more and I bought him a .45acp pistol for Christmas plus with trying to find some .243 in vain. I would like to get started. Just looking for a place to start. I know the initial cost will be high but I'm looking for the long run and I figured it would give us more time together. Thanks for any help.