#11
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Start a grain low and work up to max .2 grain at a time and see what it likes. If you start low and work up, you will never run into an over psi issue.
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#12
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Thanks to all for your time and information. B23 your post on 12.4 grains of CFE matches what mine likes the best so far in my limited testing. I seat the 20 grain Vmax at 1.715" with 12.4 grains and it's around .60 inch at 100 yards. I shot 3 rounds at 1.725" with the same charge and they opened up to just over 1 inch. I'm neck sizing only with the Redding neck sizing die. I just loaded up 3 more to shoot them tomorrow as the winds are supposed to be low. Also trying 10.9 grains of IMR-4198. That's down 2 tenths from the load that shot like crap. Those long grains really fill up a case.
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#13
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Follow up.. shot 3 more at 12.4 of CFE BLK at 100 yards. Came in at about .442" center to center. I think I have my summer 20 grain Vmax load for groundhogs. No need to fiddle around any more. Set to factory COL of 1.715' give or take a couple of thousandths. Thanks all. Let the carnage begin.
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#14
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Happy hunting!
I should be shooting groundhogs right now, but it is raining in central Washington through tomorrow. |
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