last season i got a sweet deal on a mossberg 500 (20 ga) so i go to basspro ,tell the rep i want a choke for shooting hevi13 ,so he picked me out the primos brnd with a ported end. there was only one box of 5 of the hevi 13 magnum blend so i got those and a box of 6,s. with the gon sighted in with the 6,s i loaded up a hevi 13 magnum blend for the turkey i heard gobblin on opener morn. as he approached my deke and did a little show,i opened up on his red head, all i saw was his feet flying up over his head by the momentum of theload hitting him,,no flopping ,,just dead.. got 4 magnums left, i'm sighted in and i,m goin after a gobbler or two this weekend.. love the hevi-13 mag blend.. lookin' for them in the 12 ga..would be baaaddddd