Where can you *actually* sell silver near its price? (opens in new tab)

I have some silver to sell for scrap, a few hundred grams of sterling. It's no massive treasure. I called the 2 shops near me that deal in silver and both told me the same story. "Because of volatility, we could only buy your silver at about 70% of the market price." This seems like a total scam to me. Isn't volatility already wrapped into the price of silver as a commodity? Is there a better avenue for selling silver at a reasonable rate than local brick-and-mortars?