Against the grain

For many years I have laboured under the impression that if I used 32-gr bullets instead of the heavier alternatives in my .204 Kimber Montana, they’d shoot flatter and therefore be less susceptible to trajectory issues at night. They were lethally accurate and I got very few runners, so why would I consider changing?

There are three basic weights of bullet in common use in this calibre: 32-, 39- and 40-gr. I stayed away from the heavier ones for the above reasons but was astounded