Jim, You can't shoot 500 yards at Williamsport. 100, 600 and a 1000 only. Mifflin has target backers at 25,50,100,200,300,400,500 and a 1000. Steel gongs from 600 to 1000 at 100 yard increments. $50 a year membership fee. Awesome place. If you want to go as a guest sometime let me know and you can check it out. I'm planning on going there this afternoon.