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Question about wildcat dies
 Moderated by: Slingshot, Rockydog, klallen, DesertMarine, -6
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 Posted: Sat Feb 25th, 2017 01:16 AM
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GunSton9
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I'm getting ready to load some ammo for this wildcat rifle (.219 Donaldson Wasp), and I've gotten my hands on a set of dies for it.  But I don't understand what I have here and I could use some help.  It seems like it should be obvious but its not.

There are 3 dies in the set. (It's a Redding Deluxe set.)  One die is marked "ST SJ8" and it looks like a seating die, so that's clear. Then the other 2 dies both have depriming pins, which has me a bit confused since a shell only has to be deprimed once.  One of them is marked "FL SJ8" and the other is marked "NK  S  2C".

What do I have here?

thanks for your help





 Posted: Sat Feb 25th, 2017 01:40 AM
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old timer
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GunSton9 wrote: I'm getting ready to load some ammo for this wildcat rifle (.219 Donaldson Wasp), and I've gotten my hands on a set of dies for it.  But I don't understand what I have here and I could use some help.  It seems like it should be obvious but its not.

There are 3 dies in the set. (It's a Redding Deluxe set.)  One die is marked "ST SJ8" and it looks like a seating die, so that's clear. Then the other 2 dies both have depriming pins, which has me a bit confused since a shell only has to be deprimed once.  One of them is marked "FL SJ8" and the other is marked "NK  S  2C".

What do I have here?

thanks for your help





The FL should be Full Length sizer and NK should be Neck Sizer



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 Posted: Sat Feb 25th, 2017 11:05 PM
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GunSton9
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So I have a bunch of cases that belong to this rifle and have been shot through it. To reload them, which sizing die do I use?

thanks-



 Posted: Sun Feb 26th, 2017 12:39 AM
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Rockydog



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I'd use the neck sizing die if the cases seat easily in your gun. If they to the point where it starts to get hard to close the bolt then you need to bump the shoulder back a tiny bit with the FL sizer. I'm talking .002 or less. Your FL die should always be set so that the case headspaces on the shoulder not on the case rim unless this is a lever gun.

If you form new brass you'll need the forming dies and either a neck turning tool or an inside reamer. RD



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 Posted: Sun Feb 26th, 2017 12:43 AM
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olyeller
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For cases shot in your rifle, use the neck sizing die. Set it per the instructions, size a case and try it in your chamber. If the bolt closes easily, you are done until they need to have the shoulders bumped back in the future.

If you have no instructions, set the die off the shell holder about 0.030" and see if nearly all the neck is resized without touching any of the shoulder. Adjust until you get almost to the contact spot of neck to shoulder.

What you are seeking is fully resizing the neck without contacting the shoulder.

Whenever the cases start to get hard to chamber after neck sizing several times, then set the FL die to just barely bump back the shoulder so you get acceptable bolt closing. Size them all once, then go back to neck die until they get tight again if they last that long.

Probably should look at annealing every 3 to 5 shots, and especially before bumping the shoulder back. Some anneal each shot, I don't.

ETA: RD posted while I was typing. What he says about the .002 bump back is spot on, as well as all else.

Last edited on Sun Feb 26th, 2017 12:46 AM by olyeller



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