competition practice shoot shooting sport target training aiming bullet exercise goal graphic gun holes illustration paper range wall wood ambush ammo cartridge armed forces army fight fire firing magazine military patrol pistols practice targets projectile rifle shot war weapon activities activity aim backboard background backing-board ball-game basketball basketball-basket basketball-board basketball-hoop black-and-white board equipment frame game grayscale greyscale hoop image isolated light mesh metal monochrome net outdoors park public recreation rectangles rectangular rim sporting-equipment strong weathered