Background info:
I am using a Lyman Universal Case Trimmer like this one:
http://www.cabelas.com/cabelas/en/t...370103&cm_ite=0003056210585a&_requestid=76992
The cutter stays the same no matter what caliber you're using, but there is a small "button" or guide that goes in to the case neck to keep the case in position as the cutter is cutting. The button/guide comes in different sizes to fit the case necks of different caliber cases.
Caliber is .223
Brass: mixed head stamp, varying number of previous firings
(for my match ammo I keep all the same head stamp and all the same number of re-loadings. This is just some random brass I am loading up so I can shoot out at the farm, in the snow, or other situations where I won't be able to recover all my brass)
All of the brass has been resized in the same sizer die (.223 dillon full length sizer die)
The Problem:
Some of the brass seems to have a narrower case neck, such that the "button" or guide on the cutter will not physically fit down in to the case neck.
About 80% of the brass fits just fine.
I am not having this problem with the brass I have saved and kept track of for my match shooting brass.
There is no consistency in the head stamp or number of previous firings on the cases that don't fit on to the trimmer guide. Some of them are the same head stamp as my "good match brass." Some is Federal, some is Lake City, some is PMC. For each case that doesn't fit, I have some other cases with the exact same head stamp that do fit and function correctly in the trimmer.
The brass that won't fit is definitely .223, not some other caliber.
The guide is definitely the correct one for .223 case necks, and it fits all my good match brass and 80% of my mixed headstamp brass.
Does anyone have any idea what is going on here?
So far I am just setting aside the "mystery problem" brass and proceeding to process the other cases.
I am using a Lyman Universal Case Trimmer like this one:
http://www.cabelas.com/cabelas/en/t...370103&cm_ite=0003056210585a&_requestid=76992
The cutter stays the same no matter what caliber you're using, but there is a small "button" or guide that goes in to the case neck to keep the case in position as the cutter is cutting. The button/guide comes in different sizes to fit the case necks of different caliber cases.
Caliber is .223
Brass: mixed head stamp, varying number of previous firings
(for my match ammo I keep all the same head stamp and all the same number of re-loadings. This is just some random brass I am loading up so I can shoot out at the farm, in the snow, or other situations where I won't be able to recover all my brass)
All of the brass has been resized in the same sizer die (.223 dillon full length sizer die)
The Problem:
Some of the brass seems to have a narrower case neck, such that the "button" or guide on the cutter will not physically fit down in to the case neck.
About 80% of the brass fits just fine.
I am not having this problem with the brass I have saved and kept track of for my match shooting brass.
There is no consistency in the head stamp or number of previous firings on the cases that don't fit on to the trimmer guide. Some of them are the same head stamp as my "good match brass." Some is Federal, some is Lake City, some is PMC. For each case that doesn't fit, I have some other cases with the exact same head stamp that do fit and function correctly in the trimmer.
The brass that won't fit is definitely .223, not some other caliber.
The guide is definitely the correct one for .223 case necks, and it fits all my good match brass and 80% of my mixed headstamp brass.
Does anyone have any idea what is going on here?
So far I am just setting aside the "mystery problem" brass and proceeding to process the other cases.