I also have broken a few aluminum trigger guards and am Old enough th to remember the sales hype of aluminum.
Somewhere I still have an aluminum bottom metal from an old Holland &Holland 375 .

Phil Shoemaker
Alaska Master Guide,
Alaska Hunter Ed Instructor
FAA Master pilot
www.grizzlyskinsofalaska.com

Anyone who claims the 30-06 is not effective has either not used one, or else is unwittingly commenting on their marksmanship.