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New Ladder test

 
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  #1  
Old 07-20-2008, 10:45 PM
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New Ladder test

Ok guys here is another ladder test, 8 twist 22-250 this time with 80gr A-max's bullets H-4350 powder and each test was shot on different days, all three days 1 to 3mph wind mostly calm at 300yds and again no chronograph available. Tell me what my load is?

Last edited by Preda8or; 07-22-2008 at 11:03 PM.
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  #2  
Old 07-21-2008, 07:12 AM
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36.8 grains
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  #3  
Old 07-21-2008, 07:26 AM
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I'd say retest the low end of the 36 bracket. I noticed that on one test you test from 35.8 to 37 and on the other one you test from 36 to 37.4 gr.

I think from the targets your nodes are around the low 36.2-4 range. This is where the testing gets harder... do a couple test with .1 grain differences. The smaller cases will show the difference with .1gr changes.
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Old 07-21-2008, 07:40 AM
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I agree with the above accessement of the right target. Unfortunantly, that isn't confirmed by the left target! Including your first targets, I see no indication of any "sweet spot" or node in your tests thus far.

Perhaps your limited range of charges isn't wide enough to find a node. Or, just as likely, that powder and bullet combo simply isn't working in your rifle.

I doubt that load increments of .1 gr. will help until you get a better grasp on what works.
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  #5  
Old 07-21-2008, 08:33 AM
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Hmmmmmm,

Well here goes. First I'd say you're another one who missed the dime;)

Second I"d say your target was at 300 yrds? If it was closer than that I'd say that powder/bullet/seating depth/primer combination isn't the best of matches.

I really couldn't "see" a correlation/repeatability between the two targets to be able to pick the powder weight that would be best.

Just my thoughts.

Good to hear from you again.
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  #6  
Old 07-21-2008, 08:37 PM
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Yes 300yrd. Going to try to run another test in the morning
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  #7  
Old 07-21-2008, 08:38 PM
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I thought the best way to find seating depth was after you find powder charge?
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