Pewter is considered the fourth most valuable metal in common use, after platinum, gold and silver. Pound for pound, pewter is more expensive than bronze however, there are a few factors that affect the overall price of a model cast in either material. The first factor is that pewter is a soft metal and weighs less than bronze. The same model will weigh considerably more in bronze than it will in pewter. While pewter is more expensive, a pewter model’s weight will be less. The second factor is that pewter has a much lower melting point than bronze. This allows for pewter to be cast directly into a silicone rubber mold, eliminating the many additional steps required in the lost wax casting process for bronze.