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  #11  
Old 02-16-2019, 03:23 PM
moorepower moorepower is offline
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I graduated in 1980, and guys were still making stocks for their guns in wood shop. You just went out to your pickup and brought it in.
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  #12  
Old 02-18-2019, 03:38 PM
albertacoyotecaller albertacoyotecaller is offline
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Well we shot the ladder group the other day. -20 degree weather. We shot it at 100 yards. Couldn’t really make anything out from the test. Going to go back today and shoot it at 200 to see if it will be more telling.
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  #13  
Old 02-18-2019, 03:41 PM
Dean2 Dean2 is offline
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Try shooting it at 300 if the wind is calm. It is hard to see the velocity effects at distances of less than 300 yards.
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  #14  
Old 02-20-2019, 03:21 PM
moorepower moorepower is offline
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Won't -20 effect velocities a bit?
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  #15  
Old 02-20-2019, 04:24 PM
TinMan TinMan is offline
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Or ignition variability?
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  #16  
Old 02-20-2019, 04:34 PM
Dean2 Dean2 is offline
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Quote:
Originally Posted by moorepower View Post
Won't -20 effect velocities a bit?
It does slightly depending on which powder you are using. It however has the same effect on all loads so the ladder test is still relevant. I have not found the old rule of thumb of 1 fps per degree below 70F to be accurate. With Hodgdon Extreme powders I have rarely seen even a 50 FPS difference from 70F to -20F.
This won't affect POI much at 300 yards with most cartridges.
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  #17  
Old 02-22-2019, 09:43 PM
coyotespotter coyotespotter is offline
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For .22 and under hunting rifles, I load one round every 2/10 gr. From starting load to 4/10 above book max. I shoot at 100 yards for hunting rifles, I look for a .4-.6 range with the smallest vertical dispersion and hopefully find the max pressure load for that rifle. I verify that load (mid range of svd) with 3-5 rounds, usually twice a week apart. Then I may make some small seating depth adjustments and chronograph during the seating depth tests. I never hunt with loads touching the lands so usually start .008-.010 off, that saves a lot of shooting during the depth testing.
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  #18  
Old 02-25-2019, 11:28 PM
albertacoyotecaller albertacoyotecaller is offline
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Well the daughter ended up taking third place with her science project. Now onto regionals. Need to improve on her project for the next step.
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  #19  
Old 02-26-2019, 12:20 AM
Bill K Bill K is offline
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Well good for her, placed in the top three. She should be proud and now move up on the next go around. It is great she has you helping her. Bill K
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  #20  
Old 03-02-2019, 02:35 PM
moorepower moorepower is offline
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How cool for anything related to firearms to not be bashed these days.
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