This video explains the technical differences between back-boring and over-boring shotgun barrels. While both increase bore diameter, over-boring is more common and involves a slight increase (e.g., 18.6-18.8mm), whereas true back-boring is a more significant modification starting from the chamber. Potential benefits like reduced friction and improved patterns are discussed, but the speaker emphasizes these gains are often marginal and marketing-driven, with some experienced shooters preferring standard bore sizes.
You've reached the end! 1 videos loaded.
Gun Laws by State
Read firearms regulations for all 50 states + D.C.
Find Gun Dealers
Search licensed FFL dealers near you.
