inthedark Posted January 24, 2010 Report Share Posted January 24, 2010 Sporter profile, bore scoped etc and everything in good order, but it wont group sub 1.5 inch on 100g sierra blitzkings. Can anyone with a similar rifle give me a starting point please? Quote Link to comment Share on other sites More sharing options...
seeker Posted January 25, 2010 Report Share Posted January 25, 2010 You do not say what you have tried: so I was told to treat Sierras accuracy load for a given bullet weight as the "go to' start point. After that a ladder loading at 1/2 grain steps to find the optimum charge weight ...For me it was interesting to see groups shrink-spread - shrink, then tinker around there with seating etc (if necessary). I did use a chrony for record and to keep a check on the v/c factor. good luck Quote Link to comment Share on other sites More sharing options...
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