I have found that rates very greatly between shipping companies. Because of the high weight being shipped with jigs, the best thing I have found is to utilize USPS Priority Mail Shipping.
Priority shipping allows me to select a package based on size, provides tracking information, insurance, and delivers to the destination within a few days.
The smaller flat rate shipping packages will hold up to 150 round ball jigs. You will notice during checkout that the prices are automatically set based on dollar amount. Shipping rates for a $0.01 to $85.00 purchases are $7.15 (75 dollars would be equal to 150 jigs). From $85.01 to $250.00 dollars, the shipping cost is $13.60.