Here is a link that might be of help, although not with the 75 grain a-max, but the .243 caliber 105 grain a-max. This URL shows the terminal effects of the bullet on a fox, roe buck, and a crow. Enjoy!
http://images.google.com/imgres?imgurl=http://www.jacksonrifles.com/images/crow.jpg&imgrefurl=http://www.jacksonrifles.com/vldvarmints.htm&usg=__29Qy8C0eeqHVzfsI_76DyQJLdHk=&h=311&w=451&sz=50&hl=en&start=3&um=1&tbnid=7yWVtAiBwwOwEM:&tbnh=88&tbnw=127&prev=/images%3Fq%3Da-max%2Bon%2Bvarmints%26hl%3Den%26sa%3DN%26um%3D1
Braxton
