BULLET/BARREL TWIST REFERENCE
NOTES:
1. Email any comments, feel free to supply missing data or correct errors.
2. Higher velocity rifles require less twist at short range; data assumes shooter requires long range stability
3. Bullets that are long for weight (eg VLD, boatail spitzer, nylon tip), use next faster twist.
DIAM: 0.17 0.224 0.243 0.257 0.264
WEIGHT
20 10
25 10
30 10 18
35 9 16
40 16
45 14
50 14
52 14
55 14
60 12 16 16
63 12 16 16
70 9 14 14
75 8 13 13
80 8 12 13
85 12 12
100 10 10
120 10 9
130 9
140 8
Copyright R.P. Gould 2002