Walthers HO scale 14,000-gallon sulfur tank car

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Walthers HO scale 14,000-gallon sulfur tank car

How do you add weight to bring it up to NMRA standards ?

How do you add weight to bring it up to NMRA standards ?

While I haven’t tried it on this particular model, on older Walthers tank cars I have carefully pried the ends off the tank and used Walthers Goo to add pennies inside. That being said, I don’t fret too much about .25 oz.