Put in a job application at a new local indoor field. Today/night was their grand opening. Lighting isn't too bad for photos with my 70-200 2.8 but the fields are narrow with no side line space. The net is 3-4 feet from the snake beam basically against the knuckle.
try changing the bolt sail oring and see if that stops the leak. usually that is what causes the leak down the barrel. just like in the clones, if that sail oring is damaged or not exactly spec it doesn't fully seal when the bolt is back and causes it to leak