Hoppe's BoreSnake Viper Den Rifle Bore Cleaner with T-Handle, .270, .280, .284 Calibre, 7MM Bullet Weight_101gr 378 Sectional Density 0

378 Sectional Density 0

Porosity is a key factor influencing burning characteristics of powders

7 x 57 Rimmed

Lapua 300 PRC – designed for extreme long range shooting with heavy bullets

Hoppe's BoreSnake Viper Den Rifle Bore Cleaner with T-Handle, .270, .280, .284 Calibre, 7MM Bullet Weight_101gr 378 Sectional Density 0The Hoppe's Boresnake Viper takes the technology of the original Boresnake and increases the cleaning power by adding an additional set of brushes. This one pass bore cleaning solution uses integrated bronze brushes to scrub out carbon fouling, while the tail clears the barrel of loose debris with a surface area 160x larger than a standard patch. It also has an integrated cone shaped bore guide on the leading end and the brass weight has the calibre