20 ga choke dia for 7/9 mix

[Parkerg31]

Do y'all tend to go with your choke for #7 TSS (more open) or your choke for #9 TSS (more closed) for a 7/9 mix? I run a Pinhoti .560 for my 9's and just picked up some apex small town to try. Thanks in advance.

Gun is a 870 youth 21".

[turkeymanjim]

I shoot chokes for #7 tss in a 562 to 572 diameter.

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[Happy]

I split the difference and use a .565 carlson in my 20 gauge. It does plenty well out to 40 with federal heavyweight, #8.5 tss and #9 tss. Pictures are in one of the 20 gauge Mossberg SA-20 threads