polygonal air gun liner blank 5.5mm 605mm length

Description

Airgun riffled blank with polygonal round grooves.
Steel 1040, non blued, without choke.
Length customization is possible.
Please see table with parameters.
Fell free to ask any questions.
caliber, mm(")
outside diameter, mm (+0,1)
grooves
lands, mm
Twist
4,5 (.177)
11, 13,14
6
4,43
450
5,5 (.22)
12,13,15
6
5,40
450
6,35 (.25)
13,16
6
6,28
500
7,62 (.30)
16
8
7,58
450
9 (.35)
16
8
8,80
500