The police will confiscate the firearm at the scene as it is evidence.
Home pressed/hand loaded ammo is not something we recommend for concealed carry or self-defense for a number of reasons. It will be used against you in court. Even if you document everything 100% accurately, if you’re on trial your choices and character are already being called into question. Using factory loaded ammo gives the prosecuting attorney one less big of ammo to use against you as there are unbiased ammo experts that can testify on your behalf.
Check out this thread further details: