Shotgun Pattern Question?

[Boss-gobbler]

Need some help on what to do? I'm shooting a Benelli Nova with a Hevi Shot choke tube. Last year I shot the 3 1/2 inch Magnum Blends even though they shot a little right. After doing a little shooting and expeirmenting I'm wanting to shoot the Winchester Long Beards. Walmart only carries the 3 1/2 inch #5 shot so thats what I went with. I went out and shot yesterday and at 20 yards it was a great pattern. When I stepped back to 45 yards and my pattern was about a foot right. I shot several times at this distance and all shot right. The magnum blends do the same thing, just not as bad. I'd rather not buy a red dot scope, I like the open sight better for my shotgun. Ive noticed they've made iron sights for shotguns but also noticed there typically made for slugs. Im guessing it would work the same but wasn't sure? I wouldnt mind investing in some of these but didnt know if that was a bad idea or try something differnt? I'd appreciate any advice, thanks!

[Rem Man]

   Truglo pro series magnum gobble dot sight. You will love them!!! They will fix your problem and you can remove them in the off season and they will keep zero!

[10gaugemag]

Go a few threads down and I have a thread about the Williams I put on my Browning, love them.

[Boss-gobbler]

Thanks for the information! My next question is how do I found out what size width to buy? I'm putting it on a Benelli Nova.

[taylorjones20]

TruGlo TG944D - Put that in a google search and optics planet has them for $45