Per the recommendation of Clark I picked up a Hevishot choke to run LB #5s in my 22" Winchester 1300. The other day I sighted it in got a feel for the patterns. Temps were in the 90s with pretty high humidity (always high in Arkansas). The barrel was dirty from sighting in ~8 rounds and shots were at 40yds and counts are in a 10" circle centered on higest density.
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-Blake