Inconsistancy sizing with Wilson neck sizer

[odinohi]

22-250 caliber
headstamps, 50 R+P,50 Win
.248" bushing
graphite lubing necks

While sizing these cases using the Wilson dies I was getting terrible inconsistancy in the handle of my arbor press (different force required to size). I also had inconsistancy in force when seating bullets on the first loading.This inconsistancy was not headstamp related, there was differences on a case by case basis.This is once fired brass shot in the rifle I'm loading for. It was really bugging me so here is what I did:

Cleaned the inside of the necks with a nylon brush that I chucked up in my lathe

Neck turned all the cases to the same .0125"

champfed and deburred case mouths

spun mouths on 0000 steel wool after champfing and deburring

annealled all cases

Now I'm waiting for my .247" bushing to arrive ( should be here today). I've done alot of work to these cases for a factory rifle. Do you think I will see some improvement? I will post what I find out after my new bushing gets here. I'll also report what happens at the range. Thanks, Tom

 

[JDGray]

I always load the same headstamp in rifle loadings, but sounds like the brass is thicker on some cases. I don't believe you need to lube the necks, at least you don't with Lee dies.

Good luck with your issue

 

[243winxb]

Do you think I will see some improvement?

Factory gun, had to say. But bushing/neck turning and No expander is a step in the right direction. Your brass should get the full benchrest prep treatment. Then i find FLRS controlling shoulder bump, bushing sizing 1/2 of the neck worked best for me. The whole idea is to get the round centered in the chamber. Sizing 1/2 of the neck does this. If the body is not sized, the neck can not find the center. Most chambers are not centered with the bore. The brass will have to be fired about 2 or 3 times till the unsized part of the neck fully contacts the chamber. The Redding FLRS Type S Bushing die works well for me.

 

[fguffey]

I do not use neck sizer dies that require a work stoppage every time something does not work, I neck size with a full length sizer adjusted off of the shell holder with a feeler gage. Sizing is progressive from zero to maximum (full length), by controlling ram travel the amount of sizing can be accomplished in thousands (.000) or by the fractional guesstimate of a turn (no more than a guess and not as accurate) method.

Arbor press, I believe we are talking about a different press, I use one for extreme sizing, to overcome resistance, I use a pipe for a handle extension, the Dake I use weigh close to 75 lbs but when neck sizing with one of the Herters, I raise the handle to raise the ram, then release, the weight of the handle is all that is required to neck size. Then there is the 'klunk' when the handle is raised, that is the sizer ball assembly being pulled through the neck. Value of measuring is meaningless if the case length is not know before firing, after firing and after sizing. Stretch, compress or flow?


Ultimate trimming and reaming goes to RCBS, they have reamer dies, the case is sized in the die and the inside of the neck is reamed with a reamer that is guided through the top of the die, difference in head stamps not an issue, all necks are reamed to the same dimension if the neck requires reaming, there are variations in neck thickness among cases from the same lot of 100, if the resistance to sizing was less before reaming and you are having trouble neck sizing (different die) I would agree the neck thickness is not consistent from case to case, if you had saved 10 of the new unfired cases for a reference you could have neck size one of the new unfired, unsized cases and used the results as a standard.

I have used motor mica and graphite, once, I found anything or nothing worked better.

F. Guffey