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Posted: 12/13/2010 4:43:46 PM EDT
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I was wondering what the most efficient way to find an accurate hunting load for my rifle is.
I have my powder and bullets (tac and 62gr Barnes TSX), I just want to make sure I'm not flinging more of these expensive bullets down range than I need to. Do I find the Sweet spot on the charge weight, then change seating depth? What kind of changes should I make during the development process? (.5gr at a time, .01",ect. ) I am looking to shoot these into some hogs during my trip to Texas in about a month, so I'm kind of crunched on time too. Thanks in advance. I always like to see other people's methods for doing things like this, never just one way to do something. |
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I did a ladder method test one time.
Simple 0.1 grain increase over a 15 round spread. I used a Redding trickler to get the right charge weight. The sweet spot will develop around 3-4 sequential rounds. Then you can try those or the middle two charges to dial it in. Over 15 rounds you'll likely end up with at least two sweet spots. I went for the higher velocity one lol |
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i tried this on recommendation from someone here
http://optimalchargeweight.embarqspace.com/ read through the articles, they are short and very interesting. the idea is to work up a load and find where the charge weight produces very consistent POI results, then adjust seating legnth for precision. this way you have a round that is more tolerant of temp, elevation, and variances in charge weight. That said i havent finished working up my load with this method...i have found my optimal charge weight, and got pretty good groups with it (.78 down to .39 edge2edge) in my 308. i have yet to mess with seating depth and shoot a lot more of them to statistically prove it. |
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Quoted:
It's called OCW - ladder method. It's fast and accurate assuming your method of hand loading is consistant. It's the method I use. Even if you don't decide to use this method, Dan Newberry's articles are really helpful in understanding why some loads are accurate and others aren't. The only thing I would suggest is to use a large scope and if possible take the human element out of the equation. |
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http://www.desertsharpshooters.com/manuals/incredload.pdf
I haven't read the one linked above yet, they may be the same. I'll read that as soon as I get time. |
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