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WG is West, Federal Rep. of Germany

Norma's answer Finally received an answer from RUAG Ammotec USA Inc. who reps Norma. They claim the neck wall thickness is: "0.38mm (-0.05mm) or 0.015in (-0.002in.)"

How so???

Many years ago when I first started chasing accuracy I used to stop by Walt's little shop on Camelback Road in Phoenix. He was always willing to take the time to share his expertise and offer some valued advise. We are diminshed.

2021 add Please add Walt Berger 2021

Received a message that Walt passed away last evening. He and Eunice are together again shooting on the big range in the sky with perfect weather with "0" wind. Walt was 92 years old and I saw him shooting not long ago at the bench rest range at Ben Avery. Years ago when I was first starting...

Have you found a .001 or a .002 bump to make any difference in accuracy.

I have a .22-250 that was built on a 1909 Argentine Mauser action. For scope / safety clearance the gunsmith installed a Mark II safety. I want to disassemble the bolt so I can get my die set for correct brass shoulder bump. Can someone please tell me how to disassemble / reassemble the bolt...

Actually I should have been more clear. My question relates to shoulder bump.

So what would you like to know to make a judgement concerning shoulder bump?

Correction what i was trying to say relates to shoulder bump.

Shoulder Bump With a .224 bullet and brass with .014 neck wall thickness has anyone found .001 or .002 shoulder bump to be more conducive to accuracy using a single round fed bolt action? Thanks

Thanks Mort

I know this question is kind of hijacking the thread but it seemed like a good place to broach another question. Does anyone have any load date for 220 Swift using Vihtavori N-540 and a 52 grain bullet?

Mort, FYI I checked and they list it as "backorderable" with "Extended backorder - unknown ETA.":(

Al, Your points are well taken and I am in agreement with all of them. The Swift is a slightly different animal than most varmint cartridges. Those who neck size only often find themselves in trouble due to, as you point out, brass flowing forward. Bumping the shoulders .002 and or full...

Thanks everyone for your replys.

Mr. Stiner, thank you for the reply, .013 seems thin. I have checked several batches of Winchester and it averages .017. Unfortunately the neck thickness run-out is just too much for my liking. .013 even in my SAAMI minimum chamber with a .260 neck leaves .005 clearance per side. I usually...

Can someone please tell me what the neck wall thickness is for virgin Norma .220 Swift brass? Thank you