There are three pointers on the left end of the scale base. What information do these three pointers give to the user?

It will tell if your load is off. The lower one then you are low, the higher one then you are high The middle one then you are right on.

What are the dimensions of the base?

BASE. Dimension, 3.65 X 4.20 X 12.60. inches

Does ohaus still make this scale for rcbs? my old rcbs scale says “made by ohaus” and has the name ohaus cast into the base.

Don’t think so. Mine only says RCBS

does it come with a calibration weight?

No but as it is a mechanical beam scale it doesn't go out of calibration unless damaged. It just needs to be leveled with an empty pan to zero before use and when it's moved. These are much more reliable than any electronic scale under $500.

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RCBS M500 Mechanical Reloading Scale – 505 Grain Capacity – Green

RCBS M500 Mechanical Reloading Scale – 505 Grain Capacity – Green

Product ID: 43882545

Details

Brand
RCBS
Color
Multi
Display Type
analog
Recommended Uses For Product
Gunpowder
Special Feature
Right/Left Pan

📏0.1 grain precision graduations

⚖️505 grain max capacity

🛠️Mechanical, no batteries needed

£173.72

Duties & taxes included

In stock

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Description

⚖️ Reload with confidence—precision that never runs out of juice!

BUILT TO LAST - Die-cast base and metal pan ensure stability and durability on your workbench.
INSTANT READABILITY - Large, clear graduations make weight verification quick and foolproof.
PROUDLY AMERICAN MADE - 80 years of trusted craftsmanship designed and built in the USA.
ROBUST 505 GRAIN CAPACITY - Handles all common powder charges with ease for versatile reloading.
CLASSIC MECHANICAL PRECISION - Reliable analog weighing with 0.1-grain accuracy—no digital distractions.

The RCBS M500 Mechanical Reloading Scale offers a dependable, battery-free weighing solution with a 505 grain capacity and 0.1 grain accuracy. Featuring a sturdy die-cast base, metal pan, and magnetic damping for quick readings, this American-made classic is perfect for reloaders who value precision and durability without digital complexity.

Specifications

ASIN	B00T9YJOWI
Best Sellers Rank	#404,201 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #2,646 in Gunsmithing Tools
Brand Name	RCBS
Color	Multi
Customer Reviews	4.6 4.6 out of 5 stars (338)
Display Type	analog
Form Factor	Handheld
Global Trade Identification Number	00076683989154
Included Components	M500 MECHANICAL SCALE
Item Type Name	M500 MECHANICAL SCALE
Item Weight	1.1 pounds
Manufacturer	Vista Outdoor Sales LLC
Material Type	Blend
Measurement Type	Mechanical
Model	98915
Number of Packs	1
Part Number	98915
Readout Accuracy	0.1 grain
Recommended Uses For Product	Gunpowder
Room Type	Laboratory
Special Features	Right/Left Handed Operation, Magnetic Damping System, Tip-proof Pan, Grain-to-Gram Conversion Table
UPC	076683989154
Unit Count	1 Count
Weigh Scale Type	Counter Scale
Weight Capacity Maximum	505 pounds

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