Was at the range yesterday with 12 ga. and .223.
I was doing what you are saying...shooting off the sand bags, shooting sticks and bipod.
I try to shoot once or twice a week at something...LOL
Then I stopped at a field and missed the 1st Groundhog but nailed the next two. Yesterday, Killed 4 Groundhogs, 2 Skunks, 3 Squirrels in traps for nuisance work.