I have a Marlin 336LTD that starts throwing shots all over the paper after the barrel heats up. It's a problem when the temperature is in the 90's because I need to wait almost 45 minutes for the barrel to cool down. I noticed that the forarm touches the barrel and was wondering if removing the contact would help(it has the forend cap). Also, is the magazazine tube supposed to contact the barrel for the last 3/4 inch. Thanks.