RE: HeviShot choke tube..
Mikey if you are shooting an 870 try the Rem. Ventilator choke, I don' t shoot the rem hevi-shot thru mine but I do shoot the Nitro hevi-shot and it does great, I posted a target on here the other day and at 40 yards had 243 shot in a 8 1/2 x11" paper, I' m well pleased. I think the Ventilator is one of the most under rated tubes on the market, I have not heard anyone that owns one say they did' nt pattern good.