The NRA was formed so that the Army had more well trained marksmen; its founders had noted the poor quality of US Army recruits during the Civil War. Prior to that the members of militias retained their proficiency with rifles through hunting primarily.
None of that is relevent to anything under discussion at any rate.
Excuse me, but the regular army is made up of recruits that come from the militia (that's you and me and every other able bodied citizen), and I think it's wise to practice with the same tools I would be required to use when called up to fight with the regular forces. This is very relevent to the discussion when placed in this context.
Do you think the NRA should shut down this segment of our marksmanship program? Because if these tools are outlawed or severely restricted that's exactly what you'd be doing.