Quote:

---

Only two dimensions are needed to describe the throat fully, (edited for clarity)

1. 0.4693" (11.91 mm) wide just above the case mouth, right where the 45-degree taper down from neck diameter ends. BTW, end of neck chamber diameter is 0.4831" (12.27 mm).

2. 0-degree 29' 30" leade angle.

Wide and long, leade-only, sloppy funnel throat.

---

Quote:

---

The reason for the question relates to using reduced loads with lighter bullets such as 300-350 grains. The very long free bore in the 458 Winchester frequently causes hang fires. No problem with shotgun flake type powders but with normal rifle type powders.

---

From this thread-
http://forums.accuratereloading.com/eve/forums/a/tpc/f/4711043/m/9201027511?r=9201027511#9201027511

Post Extras