03-03-2018, 12:52 PM
JASmith Wrote:Using the datum dimensions for the .308 Win and Grendel, I see that the .308 taper is 0.0120 in/in while the Grendel is 0.0123
in/in which means the Grendel has a bit more taper than the .308 Winchester.
Grendel:
Near Base 0.4426
Near Shoulder 0.4328
Difference 0.0098
Datum Length 0.8000
Taper 0.0123
.308 Winchester
.308 Win
Near Base 0.4703
Near Shoulder 0.4553
Difference 0.0150
Datum Length 1.2500
Taper 0.0120
Are you actually measuring this? You are quite a bit off from SAAMI.

