Thread: primers ?
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Old December 10, 2012, 03:38 PM   #17
Unclenick
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Join Date: March 4, 2005
Location: Ohio
Posts: 21,013
Per your other post indirectly on this topic via report, because of your powder choice I would use the CCI #41 or 450 and not the 400. Yes you want to work the load up again, but because you would be sticking to H335, you could save time if you have a chronograph. Matching velocity in your own gun with only the primer changed, you really only need to back the load off 5% to work back up. The chronograph will quickly tell you if you are exceeding the velocity of the original loads as you step up. 2% steps are OK for pressure checking, so this is just 6 rounds you need to shoot and check for pressure signs. TulAmmo's NATO spec KVB556M primer should also be good and is military sensitivity spec like the #41 for AR actions.
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Last edited by Unclenick; December 10, 2012 at 03:48 PM.
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