6 point crimp

[Netstar1]

How much hull above the shot do I need for a good tight 6 point crimp?

[Dave in AZ]

Just look at a once fired hull to see where the crimp fold line is... this is the easiest way to see the length needed for a particular hull.

Depends on gauge, you probably mean 12ga but I won't assume.

[3200 man]

Those Rio Blue hulls will give you a good idea !