Home | Products | Product Technical Terms | Back-Bored

Back-Bored

Browning was the first firearms company to offer factory back-boring to shotguns for reduced recoil and improved patterns. Back-boring increases the inside bore diameter to its ideal, maximum allowable specification. This reduces friction between the shot cup and the barrel, allowing the energy developed by the powder to propel the shot pellets to a higher velocity.

Reducing friction from the forcing cone on the shot column also results in fewer deformed pellets for more uniform patterns and keeps more pellets in the center of the pattern. Back-bored barrels work hand-in-hand with the Browning Invector-Plus™ interchangeable choke system.



Extensive research and testing has proven that when it comes to back-boring, .742" is the ideal interior barrel diameter for 12 gauge, ensuring tight, consistent patterns. Any larger and gases blow by the shot cup and reduce pellet velocity. Too small and the pellets are deformed as they pass through the forcing cone, causing poor ballistic performance.


 

 

 

The Tech-Term "Back-Bored" is referred to in the following products:


Follow Browning:

Browning Facebook PageBrowning YouTube ChannelBrowning TwitterBrowning RSS FeedBrowning Email Newsletter
BrowningShop.com

2014 Catalog Request

2014 Catalogs will start shipping the end of April.

Click here to request a free copy. It is packed with photos and specifications for our full line of firearms, accessories, cases, knives, lights, gun safes and technical clothing.
Request | Download Catalogs

Image 1 Image 2 Image 3 Image 4 Image 5 Image 6 Image 7 Image 8 Image 9 Image 10