I recently purchased, and am using for the first time tonite, a Forster Neck Sizing Die instead of my regular full-length sizing die. I use a Dillon 550B. The directions for the Forster die said that there no adjustments necessary and that the die should just be screwed all the way down to the
I noted that the sizing die, as set by the factory (and verified by me) sized the neck a little bit smaller than spec.
My Speer reloading manual says that the outside neck diameter should be 0.3435" (I am assuming this is the sized dimension).
My die takes the outside neck diameter down to 0.3390", which is smaller by 0.0045".
BTW, I am using Federal Brass currently and will be using some just-purchased Lapua during my next reloading session.
When I seated the Nosler 168 J4 I noticed that it usually required somewhat more force to seat. I also notice that some of the bullets had a teeny amount of copper shaved up to the neck of the cartridge.
I'll take grand guess and assume this is not normal. To correct this, should I back out the neck die until it sizes to spec or is this die only able to size the specific area on the cartridge if it is screwed in all the way (which is what I am guessing). If so, is this die possibly out of spec?
Edited to add: Hmmm. I didn't think this would be such a stumper. I'm also going to e-mail Forster at [email protected]
Rick
Nearly a newbie.
I noted that the sizing die, as set by the factory (and verified by me) sized the neck a little bit smaller than spec.
My Speer reloading manual says that the outside neck diameter should be 0.3435" (I am assuming this is the sized dimension).
My die takes the outside neck diameter down to 0.3390", which is smaller by 0.0045".
BTW, I am using Federal Brass currently and will be using some just-purchased Lapua during my next reloading session.
When I seated the Nosler 168 J4 I noticed that it usually required somewhat more force to seat. I also notice that some of the bullets had a teeny amount of copper shaved up to the neck of the cartridge.
I'll take grand guess and assume this is not normal. To correct this, should I back out the neck die until it sizes to spec or is this die only able to size the specific area on the cartridge if it is screwed in all the way (which is what I am guessing). If so, is this die possibly out of spec?
Edited to add: Hmmm. I didn't think this would be such a stumper. I'm also going to e-mail Forster at [email protected]
Rick
Nearly a newbie.
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