Sulfur powder dusted on your hems works good too... Absolutely works 100%. But it has a very strong smell about it Can you recommend a concentration a...

I am shooting my 7MM mag in a 1" circle at 100yds and 3" at 300yds. I have been shooting my whole life and it does take some practice and patients.

I would just find a small limb or palm fronds to lay in front and break up the straight lines. I bet it works really well.