7mm-33Nosler

Smokinghole

Well-Known Member
Joined
Oct 18, 2017
Messages
136
Its on the back burner for the moment as I’m in the middle of opening a brewery. So here’s where I left off.

I decided that a 28Nosler case knocked back just one step to 30 Nosler shoulder dimension was plenty. If you’re running something longer than the 197 then the step to 33Nos shoulder might make sense. The 33 Nosler is plenty of capacity as well but its a tougher step than 28-30 shoulder. Going to 33 makes shoulder out of decent body thickness case. It has to be done in two steps if you’re going to 33 Nosler shoulder. Also I found that annealing before knocking back the shoulder resulted in creases due to how soft the native brass is already. Then to finish up I neck turned and it chewed off a good bit of brass. It might be best to neck turn in two passes to end up with a 0.015” neck wall thickness. Starting with your neck turner at the finished thickness is a bear due to the thick shoulder brass thats now part of the longer neck. Maybe use imperial sizing wax. I was using lanolin mixed with methanol just to try it out.
 

J W Voita

Member
Joined
Aug 8, 2018
Messages
13
Location
Lewis, Colorado
Its on the back burner for the moment as I’m in the middle of opening a brewery. So here’s where I left off.

I decided that a 28Nosler case knocked back just one step to 30 Nosler shoulder dimension was plenty. If you’re running something longer than the 197 then the step to 33Nos shoulder might make sense. The 33 Nosler is plenty of capacity as well but its a tougher step than 28-30 shoulder. Going to 33 makes shoulder out of decent body thickness case. It has to be done in two steps if you’re going to 33 Nosler shoulder. Also I found that annealing before knocking back the shoulder resulted in creases due to how soft the native brass is already. Then to finish up I neck turned and it chewed off a good bit of brass. It might be best to neck turn in two passes to end up with a 0.015” neck wall thickness. Starting with your neck turner at the finished thickness is a bear due to the thick shoulder brass thats now part of the longer neck. Maybe use imperial sizing wax. I was using lanolin mixed with methanol just to try it out.
Its on the back burner for the moment as I’m in the middle of opening a brewery. So here’s where I left off.

I decided that a 28Nosler case knocked back just one step to 30 Nosler shoulder dimension was plenty. If you’re running something longer than the 197 then the step to 33Nos shoulder might make sense. The 33 Nosler is plenty of capacity as well but its a tougher step than 28-30 shoulder. Going to 33 makes shoulder out of decent body thickness case. It has to be done in two steps if you’re going to 33 Nosler shoulder. Also I found that annealing before knocking back the shoulder resulted in creases due to how soft the native brass is already. Then to finish up I neck turned and it chewed off a good bit of brass. It might be best to neck turn in two passes to end up with a 0.015” neck wall thickness. Starting with your neck turner at the finished thickness is a bear due to the thick shoulder brass thats now part of the longer neck. Maybe use imperial sizing wax. I was using lanolin mixed with methanol just to try it out.
Its on the back burner for the moment as I’m in the middle of opening a brewery. So here’s where I left off.

I decided that a 28Nosler case knocked back just one step to 30 Nosler shoulder dimension was plenty. If you’re running something longer than the 197 then the step to 33Nos shoulder might make sense. The 33 Nosler is plenty of capacity as well but its a tougher step than 28-30 shoulder. Going to 33 makes shoulder out of decent body thickness case. It has to be done in two steps if you’re going to 33 Nosler shoulder. Also I found that annealing before knocking back the shoulder resulted in creases due to how soft the native brass is already. Then to finish up I neck turned and it chewed off a good bit of brass. It might be best to neck turn in two passes to end up with a 0.015” neck wall thickness. Starting with your neck turner at the finished thickness is a bear due to the thick shoulder brass thats now part of the longer neck. Maybe use imperial sizing wax. I was using lanolin mixed with methanol just to try it out.

Thanks so much for your help. I'm going to try starting with some 30 Nosler brass rather than 28, figuring reducing the neck diameter will be a good trade off for not having to set the sholder back that extra .050 +-. I let you know how wrong i was about that.
 

Smokinghole

Well-Known Member
Joined
Oct 18, 2017
Messages
136
I like knocking the shoulder back from 28 - 30. You can choose your neck length that way for the reamer design. Necking down a 30Nosler to .284 will eat up neck length.
 

elkaholic

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Dec 4, 2008
Messages
9,783
Location
hauser, id.
I set the shoulder back approx. 090" on my 7 Saum to Sherman Short. I learned that a VERY light use of Remoil worked well and didn't wrinkle cases. No annealing! Then turn the necks to required dimension. Good luck......rich
 

Smokinghole

Well-Known Member
Joined
Oct 18, 2017
Messages
136
I want to add: If you go with a 30Nosler and get a reamer designed let me know. If you beat me to it, I might just ask you to rent it for a barrel. I won't likely get around to doing anything again about this until Jan-Feb.
 

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