The Berger 156 EOL is extremely aerodynamic; it carries energy well enough to make shots well past 500 yards on elk, if you're up to it. One of the Ultimate Reloader guys used it to great effect on a safari he documented here:
. He praises the bullet's terminal ballistics in the video, so maybe Berger has already modified the bullet's design so it doesn't need drilling/trimming (I bought mine right when the bullets first came out).
I tested the drill/trim procedure on a Berger 190 target bullet in a 10% gel block. If you've seen how differently FMJ bullets and more explosive target bullets act on a gallon jug of water, you can tell just by shooting a gallon jug. The FMJs will burst the jug, but just enough to spill the water. A rapidly expanding hunting bullet will make the water fly in all directions. Here's a YouTube video of a former federal officer demonstrating the difference with a pistol:
.
Happy hunting!
I tested the drill/trim procedure on a Berger 190 target bullet in a 10% gel block. If you've seen how differently FMJ bullets and more explosive target bullets act on a gallon jug of water, you can tell just by shooting a gallon jug. The FMJs will burst the jug, but just enough to spill the water. A rapidly expanding hunting bullet will make the water fly in all directions. Here's a YouTube video of a former federal officer demonstrating the difference with a pistol:
Happy hunting!