I would have thought shooting east on either side of the equator would do the same thing?! I like your style of cleanliness and prep for brass. If i was loading lots of casings in rotation for the rifle i probably would do the same type of prep work you do to an extent. I only use 50pc at a time and id be to impatient to wait for them to be clean/tumbled, etc. Its always good to hear others routines for reloading so thanks for sharing. 0.5 moa at 1000 is a good accomplishment. Congrats.