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Measuring case head expansion for pressure signs !

Ok ! So I’ve got 5 each loaded 29.0 to 30.0 in .2 increments of Varget for a ladder test. Should I go higher ? And I don’t have an ejector so is it accurate to measure pressure by case head expansion ? I’ve got a set of .0001 digital micrometers to use . Im a little nervous here !!!

Thx

Mark
 
@SPJ, What were the velos?
... And where's the other 10 shots? :P I like data, lots of data.
I will usually take the CW range I want to cover and divide by 10 or 15 (or even 20 if it's quite a few grains difference) for my steps. Would be interesting to see if your results still look the same going .1gn.
@divingin, some barrels are really not too fussy. Thems the barrels ya wants.
Also @OP, why 5 of each??
 

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