I have been useing fed. or rem. reduced slugs for about 5 yrs. have shot the same BENELLI for 10 yrs. Last weekend after sighting in , I tried a full power rem. slug off the bench, & after a 5 year lay-off of full power slug's, I thought the damn gun blew up. Now I know why I switched to low recoil, besides being old & feeble.