Just from my personal experience first and secondhand with friends' deer and such....


I heavier (typically Aluminum in my experience) almost always blow through a deer cleanly....expandable or fixed. Granted shoulders and spines definitely hinder the passthrough but as far as cavity shots go, I am sold that heavy arrow with a sharp fixed blade head will ALWAYS pass through out of a compound. When I started bowhunting I used a 29" 2117 with a 125 grain muzzy to take7 deer all passthroughs with a OLD Darton 55#. Dad used a 2215 and the same head to passthrough 8/9 in the same time period with the non being a spine shot. Since then I have experience with carbons of various weights and various heads. Nothing seems to blow through deer like an aluminum and a muzzy that I have used since.....my 2 cents.