Re: A well regulated militia
The second amendment doesn't suggest that target shooting, hunting or animal control are "necessary to the security of a free State". A well regulated militia is. The second is compelling the population to organise into militia, and prohibiting the state from banning the tools (guns) a militia would need in times of crisis.
As a compromise, you could say a .22 bolt action rifle could be held without militia membership, but I think exceptions generally brake rules rather then improve them.