Turn your .410 into a bona fide medium sized game getter with our Thunderhead .410 3” 168 grain HOLLOWPOINT slug. ALL our .410 rounds are roll crimped to insure smooth feeding and easy ejection. This slug is a variation of our patented Mass Forward design. This slug has fins running down its length to limit bore contact, thereby limiting fouling. This slug has a velocity of 1,400 feet per second which yields over 800 foot/pounds energy which compares directly to a .44 Remington Magnum. Compare our slug to the tiny slugs that others make, as light as 1/5 ounce. Ammo purchasers are responsible for use and compliance with all federal, state and local laws. Free shipping on ammo orders over $250. Ammo is shipped by UPS Ground Only.