If you're looking for something darker, more disturbing, and ethically ambiguous than "The Boys"- then "Gen V" will scratch that itch. Set in High School, but definitely adult only.
I'm assuming you want to someday plant/grow something on that spot of dirt.
If that's not a concern, the Punic Wars found salt to be effective.
I've put water softener pellets on fence lines. But don't tell on me.
Why?
New to reloading, it isn't the round I'd try to perfect. Or even approximate.
I bought some factory "light" loads for 30-06 last year for use by younger shooters.
Thats the route I'd suggest.
Unless you're just after the challenge?
I worked my jig last week and froze a butterball.
Ladies at Kroger were NOT impressed.
I thought my ghillie suit was solid.
I packed it in and went home. Seriously huge amounts of gobblers in Aisle 6