Just curious with the Lee Dies. I hear all the time that it is best to use fire formed brass for best results. This must mean just resizing the neck alone. How do you do this and deprime without full length resizing???? This is my die:
How to avoid full length resize????
- Thread starter darcy32171
- Start date
Get a collet die!. You are just playn with the idea of neck sizing if you back off the die or use a washer between the shell holder and die. This will not allow the FL die to fully resize. Done that for years but in the end I am not sure if it really provided the true concept of neck sizing because you are still resizing some of the case. Bullet runout may also become an issue. Sometimes you get lucky or not. Try it and see. But for the time and money, a collet die is a very reasonable investment for you.
Elky.
Elky.
My 308 won't take only a necksizing. Have to full length size them. Don't know if it's the Lee die or what. Shooting low pressure cast bullets so the cases last anyways, hate having to lube them though.
hometownhero
CGN Ultra frequent flyer
- Location
- Toon Town, Sk
Thought about neck sizing a few times. I have good success with full length sizing though. Prolly couldnt win any matches out to a bagillions yards but an inch or less at 100 is not to bad.
Try "partial resizing". It should be used only if the brass is to be used in one gun.
Use a FL die. Back it off so you know it will not fully resize the case. Run the case in and try it in the rifle. It won't fit, likely, so you screw the die down a bit and resize again. Try to chamber it again. Repeat until the case rechambers with no resistance. THAT will be the die setting that will resize the case and bump the shoulder back juusst enough for your chamber. Lock the die and use that as your "partial resizing" for that gun and chamber.
Theory is that you actually get better concentricity of case and neck with that method than you get with many neck only sizing dies because the case itself is held tightly while the neck is sized instead of "rattling around" in a neck sizing die. The brass is worked only enough to rechamber in your gun, so case life is extended over normal FL sizing.
Use a FL die. Back it off so you know it will not fully resize the case. Run the case in and try it in the rifle. It won't fit, likely, so you screw the die down a bit and resize again. Try to chamber it again. Repeat until the case rechambers with no resistance. THAT will be the die setting that will resize the case and bump the shoulder back juusst enough for your chamber. Lock the die and use that as your "partial resizing" for that gun and chamber.
Theory is that you actually get better concentricity of case and neck with that method than you get with many neck only sizing dies because the case itself is held tightly while the neck is sized instead of "rattling around" in a neck sizing die. The brass is worked only enough to rechamber in your gun, so case life is extended over normal FL sizing.
Avalonthas
CGN Ultra frequent flyer
- Location
- Toronto ON
Use a dedicated decapper to pop out your primers if you want to neck size only with the collet
Thank you!! I`m going to give that a whirl.
remember
a FL die starts to squeeze the body, which moves the shoulder FORWARD before shoving it back.
so, when setting up, if you must size a bit, as in the brass won't cycle in your rifle, you will have to push the shoulder back some until it just fits the chamber, and that IS Full length sizing, just now down to minimum specs.
if you CAN cycle once fired brass through your gun, then only size the top half of the neck, so you for sure aren't touching the body.
once you start squeezing the body, you may as well FL size or buy a neck sizer.
what rifle are you shooting?
a FL die starts to squeeze the body, which moves the shoulder FORWARD before shoving it back.
so, when setting up, if you must size a bit, as in the brass won't cycle in your rifle, you will have to push the shoulder back some until it just fits the chamber, and that IS Full length sizing, just now down to minimum specs.
if you CAN cycle once fired brass through your gun, then only size the top half of the neck, so you for sure aren't touching the body.
once you start squeezing the body, you may as well FL size or buy a neck sizer.
what rifle are you shooting?
Canadian_Zuk
CGN Ultra frequent flyer
- Location
- Pickering, Ontario
The proper lee neck die is under $25. Well worth it IMHO. It's nice not to need lube.
The original recommendation for neck sizing with a FL die was to gap the dies and shell holder with a nickle.
You still had to lube your case but it is a solution for those with only a FL die.
My die sets include neck dies and a couple Lee collet dies as the issues with lubing the body is to much trouble and mess.
You still had to lube your case but it is a solution for those with only a FL die.
My die sets include neck dies and a couple Lee collet dies as the issues with lubing the body is to much trouble and mess.
