• You are using the old High Contrast theme. We have installed a new dark theme for you, called UI.X. This will work better with the new upgrade of our software. You can select it at the bottom of any page.

die substitution

Status
Not open for further replies.

romulus

Member
Joined
Dec 28, 2002
Messages
591
Location
on a glacial structure
Okay, I got the Hornady operation manual for their Pro-jector progressive press, which I got for Christmas. Staions are set up as follows: 1) size and deprime; 2) case belling; 3) powder charge; 4) bullet seating and crimping; 5) final crimp (taper or roll)

I'd like to use the Lee factory crimp die, as well as deprime the cases before cleaning. I thought I could do this on a cheap single stage with a universal decapping die. Can I introduce the factory crimp die? At what station? Would that mean eliminating the final crimp and substitute the Lee factory crimp die? Also, If I deprime beforehand, can I resize separately, or should decapping and resizing always go together?

Thank you
 
deprime the cases before cleaning. I thought I could do this on a cheap single stage with a universal decapping die.

>Yes you can.

Can I introduce the factory crimp die? At what station?

>Station 5

Would that mean eliminating the final crimp and substitute the Lee factory crimp die?

>Yes. Dont even try to crimp with the seater/crimp die. One crimp operation that is seperate from seating. When you try to seat & crimp at the same time you wind up shaving the bullets because its starting to try to crimp before the bullet is fully seated.

Also, If I deprime beforehand, can I resize separately, or should decapping and resizing always go together?

>This doesn't matter. Whichever is your preference.
 
Car Knocker, can you explain that to me? Does that mean that I would eliminate the powder drop at station 3, and use what at station 2? By expander I guess you mean what I called case belling? And what station would get the powder lock-out die?

Thanks
 
Sure. Station #1 has the decapping/sizing die, Station #2 has the Lyman Multi-Expand Powder Charging Die (Part # 7767901), Station #3 has a RCBS Lock-Out Die (Part # 87540), Station #4 has a seating die and Station #5 has a Lee Carbide Factory Crimp Die. I use this set-up for .380, 9mm, .357 Magnum/.38 Special and .45ACP. I ran .308 rifle cartridges through the same system once but found I prefer to use a single-stage press for them.

The Lyman Multi-Expand Powder Charging Die has interchangable expander inserts (7) to fit various cartridge diameters. The Powder measure sits above the die.

The RCBS Lock-Out Die prevents the ram from rising to the top of its stroke if the powder level in the case is outside a certain range. For example, if using AA#5 in 9mm or .38/.357, the range is about 2 grains. This prevents a gross under or over-charge. This die would not be as effective with low-bulk, fast-burning powders that only require a small charge.

Any more questions, just holler!
 
Status
Not open for further replies.
Back
Top