RCBS M500 - How to Use the Main Poise

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
Themainpoiseconsistsofanaccuratelyadjustedweightthatmovesparalleltothe
axisofthebeam.Itispositionedatweightvaluesbymeansofapawlthatengages
notchesinthebeam.Thepoiserunisfrom0to500grains,withequally-spaced
notchesthatdividethisdistanceinto100equalparts.Eachsubdivisionisequivalent
to5grainsofweight.
Tozerothemainpoise,moveittothepositionwherethepawl,locatedontheright
sideofthepoise,engagestherstnotchontherightendofthepoisetravel.The
poiseindicatorwilllineupwiththe“0”graduation(Photo17).
Photo14:Addorremovecalibrationweights
Photo15:Placecalibrationmaterialbackintoweightholder
Photo16:Securepansupporttoweightholder