The literal net image works in the context of active pursuit, like law enforcement, but I don't think it fits as well with the original post, which I took to be more about how issues of aging, disease, and death are harder to avoid as one's peer group grows older. You could say that death is closing in on your age group, but to me that sounds more like the very elderly, say over 85 or 90, where friends really do tend to be decimated.
It occurs to me, belatedly, that what I might say is just something like 'It's hitting / striking closer to home.' That could also fit with the pandemic, where as the disease spreads in a community, everyone is more likely to know someone who has tested positive, been sick, or died.
I had never really thought about the underlying image of 'hit (close to) home' possibly being one of bombs or bullets, because we don't say those words explicitly, but I wonder if something like that could indeed have been the origin. Though it also might be even earlier, from hand to hand combat, where a thrust from a knife or spear might hit close to home, that is, close to the heart.