We’ve tried lead from 6-7 different 20’s and none will consistently give a pattern I’m confident in at 40yds. We’ve tried Federal stuff, Longbeard XR and a few more through chokes that are .555, .562, .565, and .570.
I shoot the old Federal Heavyweight #7’s but if I didn’t have a pile of those I’d be using TSS #9’s.
I think $99 gets free shipping:
https://rogerssportinggoods.com/remington-20gauge-3inch-112oz-1100fps-tss-turkey-loads/