Donuts in 28 Nosler Brass

Kmccord

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I am looking at getting a Inside neck cutter and outside neck cutter, I have looked online and see four that do both, K&M, Forster Case trimmer with inside neck reamer and outside neck Turner, RCBS hand held, and Wilson trimmer with neck reamer. I am wanting to hear from people's experience with any and what they recommend.

Thanks,
Keith
 

Rhovee

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I tried the Forester one. And the Wilson one. It really depends on your fired neck diameter and if the reamer is going to take out more of the neck than the doughnut. Do you not have the correct freebore for your bullet? Doughnuts in 28 brass isn't super common if your not necking up or down for a wildcat...
 

dok7mm

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Unless the donut is pretty severe, you may be able to push it to the outside of case by using expander mandrels and then outside turning, including a portion of the shoulder.

I try not to use inside reamers, if possible, they can be rough on inside of neck. I usually use multiple passes with two sizes of mandrels and check with pin gauges until the neck is clear.

I then turn the necks & into the shoulder. I also check for donuts after each sizing, using a pin gauge, just to insure they aren't starting to reform.

If you don't normally turn necks, I might suggest you purchase a custom die that will more properly size to your chamber dimensions & buy some new brass. In the long run, it will be cheaper and will solve the problem for your current chamber.
 

elf

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Unless the donut is pretty severe, you may be able to push it to the outside of case by using expander mandrels and then outside turning, including a portion of the shoulder.

.
Do what DOC says, Reaming inside the necks will give you fits trying to find the right tension.
 

Kmccord

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I tried the Forester one. And the Wilson one. It really depends on your fired neck diameter and if the reamer is going to take out more of the neck than the doughnut. Do you not have the correct freebore for your bullet? Doughnuts in 28 brass isn't super common if your not necking up or down for a wildcat...
I just happen to find this problem when I checked a recently fired case by pushing the bullet into the neck and hit a wall about .474 inches in the case. I have been experiencing some accuracy issues, could not get the same load to duplicate the accuracy I had experienced the previous outing. Now you mention an inside neck reamer may take out more of the neck than just the doughnut, but if this reamer is truly .284 then would it not take out nothing more than a doughnut in a fired case?
 

Kmccord

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Unless the donut is pretty severe, you may be able to push it to the outside of case by using expander mandrels and then outside turning, including a portion of the shoulder.

I try not to use inside reamers, if possible, they can be rough on inside of neck. I usually use multiple passes with two sizes of mandrels and check with pin gauges until the neck is clear.

I then turn the necks & into the shoulder. I also check for donuts after each sizing, using a pin gauge, just to insure they aren't starting to reform.

If you don't normally turn necks, I might suggest you purchase a custom die that will more properly size to your chamber dimensions & buy some new brass. In the long run, it will be cheaper and will solve the problem for your current chamber.
I have never turned necks, so this is all new to me, just trying to improve my accuracy after I could not duplicate a load I had previously had, all prep work was the same, cannot get my ES down below 10, it varies from 20's on up into the 40's. I just happened to take one of my fouling cartridge that had not been resized yet and pushed the bullet into the neck and hit a wall at .474 inches into the neck. I cannot remember how many times that particular brass had been reloaded, but no more than four times. I had not checked the brass I was using for the load development, I had already resized those. I don't have any pin guages, so not sure how I could check those without loading and firing those first. I will look around to see what it would cost for a custom die, but cannot imagine it would be very cheap.
 

Rhovee

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Do you seat the bullet that deep? If not then don’t worry about it. It won’t affect accuracy unless you seating into it.
 

Kmccord

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Do you seat the bullet that deep? If not then don’t worry about it. It won’t affect accuracy unless you seating into it.
I will need to take another measurement with my comparator, but yes it will more than likely seat past the neck/shoulder junction.
 

Rhovee

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Well myself personally wouldn’t shoot a bullet if It’s seated past the shoulder junction and your getting doughnuts. I’m still trying to figure out how your getting doughnuts unless your necking up 26 nosler brass. The doughnuts usually form more when you size the neck back down. I have them in a rifle and can slide the bullet down the fired neck. When the case is resized it creates a doughnut. I can feel it big time when seating a bullet.
 

shphtr

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I am having the same prob with donut formation in my 28 Nosler. It does not occur until after 3rd reload. Using 28 Nosler brass, Redding type S dies with expander removed. Donut easily noted with new 180 Berger slid down fired case and stops almost exactly where start of bearing surface would be with seating .020 short of land contact. Since bearing surface would not contact donut with seating .010 or .015 off lands I may try this as opposed to trying to inside neck ream the donuts .... but have ordered Foster inside neck reamer for contingency planning.
 

Rhovee

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I would try a Berger 180 hybrid as the bearing surface is less than the 180 vld and might give you some more length. I have had good results with the hybrid .020 off the lands. And yes the hybrid works well for hunting
 

shphtr

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I would try a Berger 180 hybrid as the bearing surface is less than the 180 vld and might give you some more length. I have had good results with the hybrid .020 off the lands. And yes the hybrid works well for hunting
My bad, I should have stated that I am using the 180 gr hybrid.
 

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