RCBS M500 Merkblatt

M500 MECHANICAL SCALE

PRODUCT INSTRUCTIONS

151020

WARNING!

Before using this product, read and follow these instructions carefully. Failure to

do so could result in serious injury or death, or property damage.

If you have any questions while assembling or operating this product,

call us at 1-800-379-1732 (U.S. or Canada)



Or email us at rcbs.tech@vistaoutdoor.com

This manual contains important safety and operating information. Keep this as a

permanent part of your reloading equipment. If lost, contact us for a replacement.

GUNPOWDER WARNINGS

WARNING! Keep out of reach of children

• Storepowdersintheiroriginalpackageinacool,dryenvironmentfreefromwidetemperature

variations.

• Keepcanstightlysealedandlabelsintact.

• Markdateofpurchaseoncan,forfuturereference.Useolderstockrst.

• Neveruseglassasastoragecontainer.Thismaycausea“greenhouseeffect”raisingtemperature

in container and degrade the powder.

• Checkcansandpowderforsignsofdegradation.Manypowderswillexhibitanered-browndust

on the granules and/ or inside the container when this happens. If it does, do not use propellant;

dispose of it properly in compliance with local regulations.

• DONOThavemorethanonecanofpowderonthebenchatonetime.PowderCansshouldbe

storedawayfromthebenchtoavoidpickingupthewrongone.

• DONOTuseanypowderunlessitsidentityispositivelyknown.Theonlypositiveidenticationis

themanufacturer’slabelontheoriginalcanister.Properlydiscardallmixedpowdersandthoseof

uncertain identity in compliance with local regulations.

• Ifyouuseapowdermeasure,replacethelidsonboththePowderHopperandPowderCanafter

thePowderHopperhasbeenlled.

• WhenusingaPowderMeasure,settlethepowderinthePowderHopperbeforechargingany

cases.Throwandchecktheweightofatleastten(10)charges.Thiswillassureyouthatthe

correctpowderchargeisbeingthrown.

• Whenyounishareloadingsession,pouranyremainingpowderbackintoitsoriginalfactory

container.Thiswillpreservetheidentityandshelflifeofthepowder.

• DONOTsmokewhilereloading.



-

mation on how to reload, or handle or use reloading components. Always read and thoroughly

understand a reloading manual before attempting to reload ammunition.

Reloadingisanenjoyableandrewardinghobbywhenconductedsafely.But,aswithmanyhobbies,

carelessnessornegligencecanmakereloadinghazardous.When

reloading,alwaysfollowthesesafetyguidelinestominimizetheriskofpersonalinjuryordeath.

• Alwayswearsafetyglasses.

• Understandwhatyouaredoingandwhy.Readhandbooksandmanualsonreloading.Talkto

experiencedreloaders.Writeorcallsuppliersofequipmentorcomponentsifyouhavequestions

orareindoubt.

• Readandunderstandallwarningsandinstructionsaccompanyingyourequipmentand

components.Ifyoudonothavewritteninstructions,requestacopyfromthemanufacturer.Keep

instructions for future reference.

• Don’trushortakeshortcuts.Establisharoutineandfollowitataleisurelypace.

• Keepcompleterecordsofreloads.Labeleachboxshowingthedateproduced,andthetypeof

primer,powderandbulletused.

• Donotsmokewhilereloading,orreloadnearsourcesofheat,sparksorame.

• Observegoodhousekeepinginthereloadingarea.Keeptoolsandcomponentsneat,cleanand

orderly. Promptly and completely clean up any spills.

• Keepyourhandsandngersawayfrom“danger”spotsandpinch-pointswheretheymightbe

injured.

• Keepallreloadingequipmentandcomponentsoutofreachofchildren.

• Stayalert.Reloadonlywhenyoucangiveyourundividedattention.Donotreloadwhentired,ill,

rushedorundertheinuenceofdrugsoralcohol.

Because RCBS®hasnocontroloverthechoice,assemblyoruseofcomponentsorotherreloading

equipment,RCBSassumesnoliability,expressedorimplied,fortheuseofammunitionreloaded

with this product.



Useonlylaboratorytestedreloadingdata.WehighlyrecommendthecurrentSpeer®Reloading

Manual.

OBSERVEALLWARNINGSABOUTTHEUSEOFMAXIMUMLISTEDLOADS.



• Examineemptycasestobesuretheyareingoodconditionbeforereloading.Thin,split,

deformed,orbadlycorrodedorpittedcasesmaybestructurallyweak,andresultinadangerous

condition.Payparticularattentiontosplitsinthemouth,separationbetweenthecaseandthe

head, and dents in the shoulder.

• Donotstorecartridgecasesorammunitionnearharshchemicalssuchasgasoline,household

cleanersorcaturine.Thefumescanweakenthemetalandpresentadangerouscondition.

• Donotcleancaseswithchemicalsotherthanthosespecicallydesignedforthepurpose.

• Donotattempttocleanloadedammunitionorprimedcases.Doingsocancausecorrosion,and

weakenthecase,orcauseamisre/hangrecondition.

• Ensurecaseshaveproperprimerpocketsizes;removeprimerstaking/crimpifnecessary.

Attemptingtoseataprimerintoanundersizedpocketorpocketwithstaking/crimpingcanresult

in detonation.

• Donotreamoutorenlargeashholesofcartridgecases.Thismaychangetheignitionrateand

result in dangerous pressures.

• Resizeandtrimredcasestoensurereliablechamberingandobtainproperbullettensionand

crimp.

• Neverattempttoguessattheidentityofyourammunition.



• Magneticdamping

• Levelingfootforeasyzerobalancingofscale

• Ruggeddie-castaluminumbase

• Ambidextrousdesign

• Ambidextrousscalepan

TheM500hasa505-graincapacity,andfeaturesatwo-poisesystem.Adjust-

mentsmadeusingthemainpoise,ontheleftsideofthebeam,adjustfrom5to

500grains,in5-grainincrements.Thesmallpoiseonrightsideofbeamadjusts

from0to5grains,in0.1grainincrements.TheM500utilizesmagneticdampingto

eliminateunnecessarybeamoscillation.Itfeaturesaruggeddie-castbasewitha

largeadjustablefootforextrastabilityonthebench.Self-aligningceramicbearings

supportthehardenedsteelbeampivotstoguaranteesensitivityto0.1grain.Ambi-

dextrousdesignwithdualgraduationmarkingsallowstheusertoreadtheweight

readings from either side of the scale.

UNPACKING

YourM500scaleispackedinaspeciallydesignedcartontoprovidemaximumpro-

tection.Unpackthescalecarefullytoavoiddamagingcomponents.Identifypartsas

youcarefullyunpack(Photo1).

TheM500scaleisahighlyprecisereloadinginstrument.Wesuggestusingeither

OIMLClassF2standardcheckweightsorNISTclassFRCBS

CheckWeightsas

standardcheckweightsforcheckingtheaccuracyofyourscale.



ToassembleyourM500scale,placethebeamassemblyontothebasebyrst

insertingthedampingvaneinbetweenthezeroreferencepointers(Photo2).

Nextrestthesharpedgesofthepivotportionofthebeamontotheceramicbearings

(Photo3).Placepansupportontoshacklelocatedattheendofthebeam(Photo4).

Tocompleteassemblyplacescalepanontopansupport(photo5).

Photo1:ScaleComponents

BEAM ASSEMBLY

BASE

SCALE PAN

SUPPORT

Photo2:Beamplacement

Photo3:Placementofpivotsontoceramicbearings

Photo4:Placepansupportontoshackle

Photo5:Placepanontopansupport



TheM500scaleisdesignedforusebybothright-andleft-handedusers.Thescale

panconsistsoftwotabs,amainbeamwithgraduationmarkingsonbothsides,

andasetofreferencepointersoneachside.Photos6and7showtheM500witha

100-grainloadinbotharight-andleft-handedorientation.



(directions below are for right-handed use)

• Placethescaleonaat,levelsurface

• Setinalocationwhichallowsviewingofscaleasneartoeyelevelaspossible;

thiswilleliminateanypotentialparallaxerror

• Placebothpoisesatzero

• Placescalepanonpansupport

• Scaleisbalancedwhenzerolineonmainbeamlinesupwithcenterreference

pointer(Photo8)

• Ifzerolinedoesnotlineupwithcenterreferencepointer,rotatelevelingfoot

clockwisetomovereferencepointerupward,orrotatecounter-clockwisetomove

referencepointerdownward(Photo9)

• Thescaleshouldbezerobalancedbeforeuseandcheckedperiodicallyduring

useformaximumaccuracyandprotectionagainsterror.

NOTE:DONOTMOVESCALEONCEBALANCED.IFSCALEISMOVED,FOLLOW

STEPSABOVETORE-ZEROSCALE.

Photo6:Right-handedoperationusing100-grainweight

Photo7:Left-handedoperationusing100-grainweight



ThepansupportontheM500scaleiscalibratedpriortopackagingandthere

shouldbenodifcultyinzerobalancingyourscale.However,ifthereisnotenough

adjustmentinthelevelingfoottozerobalanceyourscale,itmaybenecessaryto

re-calibratethepansupport.Toaccomplishthis,removethepansupporttopfrom

theweightholder,usingaPhillipsscrewdriver(Photo10).Theweightholdercontains

severalnon-magneticweights;ifweightneedstobeaddedtopanmakesureto

useonlynon-magneticmaterial.Magneticweightsmightaffectthescale’saccuracy

(Photo11).Placeallweightsandpansupportscrewintoscalepan(Photo12).Place

pansupportbackontoweightholderandre-attachpansupporttoshackleonbeam.

Placescalepancontainingcalibrationweightsandpansupportscrewontopan

support(Photo13).Adjustlevelingfoottoitsmidpointandaddorremoveweights

tobringbeamintobalance(Photo14).Whenzerobalancedisachieved,asshown

inPhoto8,placeallcalibrationweightmaterialintoweightholderandsecurepan

supporttoweightholder(photos15and16).Thepansupportisnowre-calibrated

and ready for use.

Photo8:Scalebalanced

Photo9:Rotatinglevelingfoottozerobalancescale

Photo10:Removingpansupport

Photo11:Weightholdercontainingnon-magneticmaterial

Photo12:Placecalibrationweightsintoscalepan

Photo13:Placescalepanontopansupport



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

Toincreaseweightvalues,movethepoisetotheleftandlineuptheindicatorwith

the desired graduation. Always make sure the pawl is seated in the notch.

Correctsettingfor160grains(Photo18).

Donotattempttosetthemainpoiseatanypositionexceptrmlyseatedinanotch.

Alwaysusethesmallpoiseforweightvaluesbetweenthe5-grainincrementsofthe

large poise.



Thesmallpoisefunctionsthesameasthelargepoise.Thispoiserunisfrom0to5

grainsandtheequallyspacednotchesdividethisdistanceinto50equalparts;each

subdivisionisequivalentto1/10(0.1)grainofweight.

Tozerothesmallpoise,moveittothepositionwherethepawl,whichisthetop

edgeoftherectangularslotthroughthepoise,engagesthenotchdirectlyabovethe

“0”graduation.Thelong,verticaledgeofthepoiseistheindicatorandwilllineup

withthe“0”graduation.

Toincreaseweightvalues,movethepoisetotheleftandlineitupwiththedesired

graduation. Always make sure the pawl is seated in the notch. Correct setting for

3.7grains(Photo19).

Photo17:Mainpoisesetonzero

Photo18:Mainpoisesetat160grains

Inhaltsverzeichnis

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