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Long Range Hunting & Shooting
Interpeting Magnetospeed Data
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<blockquote data-quote="Tikkamike" data-source="post: 924632" data-attributes="member: 22242"><p>I didnt reqad all the replies so I dont know what has been said but here is what I think.. 1. your SD isnt that bad, I dont think your load is crap I think there are things you can do to make it better. first off your barrel was much dirtier by the end than it was when you started following the trend with that in mind tells you a lot. same with barrel heat.. I dont know what you temp there is but by the end of 2 hours that is only 8 minutes between shots. so maybe shoot less each day or stay longer.. what dies are you using? expander ball or bushing? what are your neck thickness measurements? did you anneal? because each piece of brass will work harden at a different rate especially if the neck thicknesses are different. what are you using to weigh each powder charge? same primers in every one? same lot of powder?... lots and lots of variables.. that being said your first 5 shots have an ES of 18.. Maybe you are expecting less but unless you are turning necks weight sorting brass etc you cant blame that ES on your load..even then im not sure I would. take your average (which we always do in this game) 9 fps variance one way or the other... you will never see that 9 fps on paper or in the field. I am all for striving for better.. lessen the variables and improve the margin for error always! but just tinker with your loading technique a little and see if you can change those numbers without changing your load. You stand to learn a lot with an experiment like that... one more thing.. dont do it once.. get your numbers then go verify and reverify them that way you know any changes are real results and not coincidence</p></blockquote><p></p>
[QUOTE="Tikkamike, post: 924632, member: 22242"] I didnt reqad all the replies so I dont know what has been said but here is what I think.. 1. your SD isnt that bad, I dont think your load is crap I think there are things you can do to make it better. first off your barrel was much dirtier by the end than it was when you started following the trend with that in mind tells you a lot. same with barrel heat.. I dont know what you temp there is but by the end of 2 hours that is only 8 minutes between shots. so maybe shoot less each day or stay longer.. what dies are you using? expander ball or bushing? what are your neck thickness measurements? did you anneal? because each piece of brass will work harden at a different rate especially if the neck thicknesses are different. what are you using to weigh each powder charge? same primers in every one? same lot of powder?... lots and lots of variables.. that being said your first 5 shots have an ES of 18.. Maybe you are expecting less but unless you are turning necks weight sorting brass etc you cant blame that ES on your load..even then im not sure I would. take your average (which we always do in this game) 9 fps variance one way or the other... you will never see that 9 fps on paper or in the field. I am all for striving for better.. lessen the variables and improve the margin for error always! but just tinker with your loading technique a little and see if you can change those numbers without changing your load. You stand to learn a lot with an experiment like that... one more thing.. dont do it once.. get your numbers then go verify and reverify them that way you know any changes are real results and not coincidence [/QUOTE]
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