Posted: 9/16/2011 5:56:41 AM EDT
| Trimming cases last night it occurred to me that there's a a surprising degree of variation in terms of stretch within a set of one time fired cases to the extent that some needed nothing removing, others quite a bit (few tho) - The cases in question were Dynamit Nobel (DAG headstamps), factory 55Gn FMJ.. is there enough variation in load/ seating (or anything else in a factory load) that it makes the difference? |
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Quoted:
Trimming cases last night it occurred to me that there's a a surprising degree of variation in terms of stretch within a set of one time fired cases to the extent that some needed nothing removing, others quite a bit (few tho) - The cases in question were Dynamit Nobel (DAG headstamps), factory 55Gn FMJ.. is there enough variation in load/ seating (or anything else in a factory load) that it makes the difference? I think the first thing to consider is that you dont know what length or the consistency of those cases before they were fired. FWIW, I size my .223 brass in a Redding small base die and then in a Redding neck bushing die and have on occasion trimmed up to .015" off on a first firing. Never bothered me though |
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Quoted: Quoted: Trimming cases last night it occurred to me that there's a a surprising degree of variation in terms of stretch within a set of one time fired cases to the extent that some needed nothing removing, others quite a bit (few tho) - The cases in question were Dynamit Nobel (DAG headstamps), factory 55Gn FMJ.. is there enough variation in load/ seating (or anything else in a factory load) that it makes the difference? I think the first thing to consider is that you don't know what length or the consistency of those cases before they were fired. FWIW, I size my .223 brass in a Redding small base die and then in a Redding neck bushing die and have on occasion trimmed up to .015" off on a first firing. Never bothered me though TBH its not a factor in anything for me either.. just something that I wondered about at the time. |
