Bighammer

What you say is true for the once a coupla month shooter but if you use nothing but light loads, you tend to screw up when going back to full loads. When I first got my stuff, I had quite a few lighter loads for range time to accustom myself to a magnum length action and smooth out the rifles. At the end of every session, I'd bang off at least 20 rounds just to get nerve endings used to the heavier recoil. After all my rifles have been broken in, I don't shoot light loads in them anymore. I've found that by concentration on the rifle/load combination makes me a slightly better shooter knowing there's satisfaction at doing well with them.