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Black powder barrels (from calibre .31 to .58)

made from special rifle steel

You can choose octagon shape or round material. The designation "N7" means especially designed for long bullets.

Technical specifications:
The values given for land, groove, twist and number of grooves are the C.I.P.-minimum without the necessary tolerance.


 

calibre
ext. diam. [mm]
length [mm]
land diam. [mm]
groove-diam. [mm]
twist [mm]
grooves
price
 
 
.31
23.00
435
7.80
8.16
450
8
B
 
.36
23.00
435
9.30
9.70
450
8
B
 
.36
38.00
435
9.30
9.70
450
8
D
 
.38
32.00
850
9.20
9.48
1200
8
E
 
.38N7
32.00
850
9.30
9.60
710
6
E
 
.44
22.00
220
11.15
11.35
450
6
B
 
.44
22.00
285
11.15
11.35
450
6
B
 
.44
25.00
285
11.15
11.35
450
6
B
 
.45
32.00
850
11.35
11.65
1200
6
E
 
.45N7
32.00
850
11.35
11.65
710
6
E
 
.54
26.00
565
13.50
13.78
450
6
D
 
.54
32.00
850
13.50
13.78
1200
6
E
 
.58
32.00
850
14.65
14.85
1200
6
E
 
calibre
width betw flats [mm]
length [mm]
land diam. [mm]
groove-diam. [mm]
twist [mm]
grooves
price
 
 
.31 octagon
SW20
250
7,80
8,16
450
8
B
 
8mm octagon
SW22
285
7.95
8.30
450
6
B
 
.31 octagon
SW20
250
7.80
8.16
450
8
B
 
.31 octagon
SW22
285
7.80
8.16
450
8
C
 
.31 octagon
SW25
285
7.80
8.16
450
8
C
 
.36 octagon
SW22
285
9.30
9.70
450
8
C
 
calibre
width betw flats [mm]
length [mm]
land diam. [mm]
groove-diam. [mm]
twist [mm]
grooves
price
 
 
.36 octagon
SW25
285
9.30
9.70
450
8
C
 
.38 octagon
SW22
285
9.20
9.48
450
8
C
 
.38 octagon
SW25
285
9.20
9.48
450
8
C
 
.38 octagon
SW25
850
9.20
9.48
1200
8
F
 
.38 octagon
SW28
850
9.20
9.48
1200
8
F
 
.38N5 octagon
SW25
850
9.30
9.60
508
6
F
 
.38N7 octagon
SW25
850
9.30
9.60
710
6
F
 
.38N7 octagon
SW28
850
9.30
9.60
710
6
F
 
.41 octagon
SW22
285
10.41
10.71
450
6
C
 
.41 octagon
SW25
750
10.41
10.71
1200
6
F
 
.41 octagon
SW25
850
10.41
10.71
1200
6
F
 
.44 octagon
SW22
285
11.15
11.35
450
6
C
 
.44 octagon
SW25
285
11.15
11.35
450
6
C
 
.45 octagon
SW22
1000
11.35
11.65
1200
6
F
 
.45 octagon
SW25
285
11.35
11.65
450
6
C
 
.45 octagon
SW25
1000
11.35
11.65
1200
6
F
 
.45 octagon
SW25
285
11.35
11.65
450
6
C
 
.45 octagon
SW25
850
11.35
11.65
1200
6
F
 
.45 octagon
SW28
750
11.35
11.65
1200
6
F
 
.45 octagon
SW28
850
11.35
11.65
1200
6
F
 
calibre
width betw flats [mm]
length [mm]
land diam. [mm]
groove-diam. [mm]
twist [mm]
grooves
price
 
 
.45N7 octagon
SW25
850
11.35
11.65
710
6
F
 
.45N7 octagon
SW28
850
11.35
11.65
710
6
F
 
.54 octagon
SW25
850
13.50
13.78
1200
6
F
 
.58 octagon
SW28
850
14.65
14.85
1200
6
F