Ok that makes sense. So a .665 choke should shoot 5s best probably right? Out of a remington 870
I think a .665 is always a good starting point (and I emphasize starting point as there is no guarantee with any gun or load). That said, I don’t own an 870 and have never dealt with rem choke. Indian Creek’s standard for Remington is .665, though they offer a .660 and .670. Sumtoy is a fine, fine choke manufacturer and they recommend their .660 for that gun with lead and copper plated. When you say 5s, what kind of 5s? Are you shooting some Super X straight lead, Long Beards, HEVI? Search out that load in the Remington 12ga pattern section. There are lots of folks on here who have put in the time and effort and money to take a lot of the guess work out of honing in on a gun’s potential.
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