Observations I often encourage customers to pattern their shotgun before they bring it to me and then again after I lengthen and polish the forcing cone. The results have been very positive, with improvements in pattern configuration and gains in pattern density of up to 12% or more. Simply put, you get more holes in a 30 inch circle at 40 yards with a long polished forcing cone than you do with a short, abrupt forcing cone. For the last 20 years my customers have agreed! Over the last 20 years I have been surprised at some of the forcing cone work I have seen. Some are chewed up by chatter and many/most that have been lengthened are barely polished or not polished At All! The polishing process is half the job. In addition to complete bore and chamber polishing, I decided to offer the forcing cone polishing service for forcing cones that have already been lengthened but were never properly polished or were never polished at all. This started out as a "try it and see" type of thing. I knew that from a maintenance standpoint, the forcing cone needs to be polished, but I didn't know for sure if merely polishing a long, but rough forcing cone would enhance performance measureably. The feedback was surprising at first, but after many years of doing this now, the positive feedback has become common. Check your forcing cone. If it is already long but it is rough, and if you are looking to tweak your barrel for every hole you can squeeze into the pattern, this is the final frontier. You may be surprised at the results. Home      <<< Back to Proper Cone Polishing