Have a 4 hole turret but only using 3 dies, should I use 4?

[Walkalong]

Link to collet die crimp in 7.62 X 39

 

[hokeyplyr48]

Does the crimp depend on if the bullets have a cannelure?

 

[Walkalong]

Walkalong: So what type of die would produce the taper or roll crimp that you're talking about?

Any standard roll or taper crimp die, including Lee's. Most rifle seater dies are set up to roll crimp as well.

 

[Walkalong]

Here is a roll crimp on a .357 case. I used a Redding Profile Crimp die (Their roll crimp only die)

 

[The Bushmaster]

Perty picher...

 

[7.62 Nato]

Seedtick,
I believe the 3 hole turret also fits the Pro1000

 

[Walkalong]

Does the crimp depend on if the bullets have a cannelure?

If a jacketed bullet has a cannelure, it is designed to work with a roll crimp. The cannelure is there for that reason, to "roll" the case mouth into. A taper crimp will work as well, and I prefer it with some bullets these days that have a poor excuse for a cannelure. (super shallow-no depth to crimp into).

A taper crimp is perfect for plated bullets, but works just fine with jacketed bullets as well. For a jacketed bullet without a cannelure (rare for bullets intended to be crimped) the taper crimp die is a must, as there is no where for the case mouth to "roll" into.

Most lead bullets have a "crimp groove" that is perfect for a roll crimp. The Lee tumble lube design is one exception. Again, any lead bullet can be taper crimped as well.

For heavy recoiling revolver calibers, especially when using heavy bullets, a stout roll crimp is the way to go, especially when using the real slow burning powders.

 

[Right Wing Wacko]

For Pistol I use the Lee Deluxe Carbide Die set. Almost all of them come with four dies.

1. Decapper / Sizer
2. Expander / Charge
3. Seater
4. Factory Crimp


Come to think of it, I use the same for Rifle. I purchased the Lee Pacesetter set, putting a Lee Universal Charging Die in place of the Pistol / Charge die that comes with the Pistol Die Sets.