no two rifles or chambers are the same..whats safe in one may blow up the next....
start low..work your way up slowly...either 1/2 or 1 grn at a time depeding on how big of case your talking....
a long throat and loose bore will be less pressure than a short throat and tight bore.... so you load according to what YOUR rifle likes...and the only way to find that out safely.....start low and work your way up
old data...new data...mates data..internet data....paper manual data.... at all times try to find 2 if not 3 sets of hard data to confirm what you are going to do then......start lower and work your way up
I hate using up components on paper but with new rifle will still
start lower and work my way up
once you KNOW what your rifle likes/tolerates
you can then make an educated guess as to where on spectrum of a new load your rifle will be happy then you....yip you guessed it
start lower and work your way up.
you dont need to load ten at each load level..1-2-3 is heaps enough... when yo ustart to get pressure signs..or if using chronicgraph..hit higher than expected velocity...stop and pull rest of loads hotter than where you got up to..then drop down a notch and be reasonably happy you are in safe pressure zone..with luck either that load or one slightly below it will have also been a reasonably close group... two birds with one stone sort of deal.
to recap....start low and work your way up.
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