Straight Taper Round / Octagonal
Barrel Weight Calculator

Round Barrel     Octagonal Barrel
V = π/3 (h) (rs2 + rl2 + rsrl)
where rs is the muzzle (small) radius,
rl is the breech (large) radius and h is the barrel length;
the radii will be calculated from the diameters 		    V = 6.4379 (h) (ss2 + sl2 + sssl)
where ss is the length of a side at the muzzle (small),
sl is the length of a side at the breech (large) and h is the barrel length;
the sides will be calculated from the widths across the flats
Bore Diameter:   
Muzzle Diameter:   
Breech Diameter:   
Barrel Length:   
Steel Density (lb/in3):   
Barrel Weight:   
 
Bore Diameter:   
Muzzle Width (across flats):   
Breech Width (across flats):   
Barrel Length:   
Steel Density (lb/in3):   
Barrel Weight:   
These calculators do nothing beyond evaluating the stated equations using the data supplied by YOU.
They do not allow for cylindrical breech reinforces or cartridge chambers.