Here is an honest question for ya. Head space??

Skeet, do yourself a favor.

Form a case...... Cut it open and look at it, measure it. See for yourself that the "dreaded donut" is nothing more than thicker shoulder brass that's now neck brass. Donuts, or the complete lack thereof, are definitely articacts of the case forming and maintenance procedure but be careful how you eliminate them.

I STRONGLY disagree with giving yourself .005 slop in your chamber trying to FF brass without a donut. Buy a setup from Jim Borden to see it done correctly, your cases will be crush-fit in the chamber for perfect ff, and NO DONUT....

Then again, maybe I'm completely misunderstanding the .005.....

That said, Jerry's right.

I've got cases that have 2/10 inch of "donut" or thick brass in the neck. You can't force a bullet into the area and still chamber the round. And no bad effects.

opinionsby





al
 
Al
After reading your opinion on the crush fit, thats why i formed this second batch the way i did. I wanted the crush fit so it would help form a straighter case from the get go, and they are straight. Not as much as a wiggle on my Sinclair tool. The donut issue really isn't an issue as far as my seating depths. I am above the donut by quite a bit. On the cases than norm wills turned for me after i formed them, there isnt even a donut. I can drop a bullet all the way down into a fired case if i wanted to. It just isnt there. Norm must have reamed it out for me. he does a fine job on the brass i send him!!
I have been sitting here studying my targets from the past couple weeks and i see several small groups that have one bullet high or low out of the group. No paper between them but they are out by almost a hole bullet. When you see this what does it make you think? Thanks Lee
 
Skeet, when I used the feel method...back when I first began shooting BR, Pat Byrne told me to get a "do hickey" (barrel stub w/chamber reamer run in enough to provide a stop) to measure shoulder set back. He went on to tell me that one often feels the pressure from the back of the case and not the shoulder. The barrel stub do hickey is much better than the brass thingy that Harrel provides. Jackie has given you good advice...as well as several others. Try to set your shoulder back by no more than .001 and all will be well. Good shooting....James
 
Will do. I think the ejector pin can also have some effect if you dont know what you are feeling. Now one more quick thing here. Like i said above what would be the first thing that comes to your mind when you are seeing really small groups but one shot going out high or low? No paper in between but pretty close to a full bullet out. What would you think? I know there could be several reasons but what would you think about first? Lee
 
alinwa said:
I STRONGLY disagree with giving yourself .005 slop in your chamber trying to FF brass without a donut. al
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Al, my method of f-forming cases involves pushing the shoulder back .020-.025 from the 'crush' point. F-formed cases come out dead straight, with z-e-r-o donuts and they fit the chamber perfectly. Annealing before f-forming, a skosh of lube on the case and a good jam.....it never doesn't work. Double negative intended. ;)
 
Al Nyhus said:
lube on the case and a good jam.....it never doesn't work. Double negative intended. ;)
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Al Nyhus, do not you not mean in your "good jam" to mean jam of the bullet to hold the case base in place. Triple negative not intended...I lost count somewhere.
 
JerrySharrett said:
Al Nyhus, do not you not mean in your "good jam" to mean jam of the bullet to hold the case base in place. Triple negative not intended...I lost count somewhere.
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Jerry: I didn't never not mean not to don't never jam the bullet. :D

Never, not ever, jamming the bullet doesn't always never mean not to ever use preserves instead of jam or jelly. I'm a marmalade guy myself, hence the need to mostly always on every each occasion, lube the cases. :cool:

Stay warm, buddy. -Al
 
Al Nyhus said:
Jerry: I didn't never not mean not to don't never jam the bullet. :D

Never, not ever, jamming the bullet doesn't always never mean not to ever use preserves instead of jam or jelly. I'm a marmalade guy myself, hence the need to mostly always on every each occasion, lube the cases. :cool:

Stay warm, buddy. -Al
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Well, who would have never thought that. Me, I never never a' dreamed that. Well, I never, in all my born days!

Stay warm, I just looked and it is 72F...gotta go shot.
 
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