4570 is definitely more accurate and retains energy better down range, Thereby being giving it the edge under gerneral circumstances However, within close range such as the 70yds orginally mentioned or less, you will hardpressed to say the 4570 has greater lethality assuming you compare identical shot placements Table of Contents show Our Selection 19 Best 410 Gauge Ammo #1 410 Gauge – 2 1/2 in Centerfire Shotgun Slugs Ammunition – Hornady #2 410 Gauge – 1/2 oz 25″ Centerfire Shotgun Ammunition – Winchester #3 410 Gauge – 3/4oz Centerfire Shotgun Ammunition – Winchester #4 410 Gauge – 225 Grain 25″ Centerfire ShotgunBrenneke rifled slugs still use felt and fiber wads, and are suitable for use in smooth or rifled shotgun barrels Rottweil offers several slug loads in 12, , and 410 Their 2 3/4" 12 gauge slug weighs 1 1/4 ounce, and their 3" Magnum gauge slug weighs a full 1 ounce
Bfr 45 Long Colt 410 7 5 Barrel Stainless Steel W Vent Rib Kahr Firearms Group