I tested 3 chokes with Apex #9 loads at 40 yds with a leadsled. It was windy, but I timed the gusts, so not a huge factor. Indian Creek .555, Carlsons LBXR .568, and a Sumtoy .562. I did not include a pic of the Sumtoy because it shot much lower than the others and part of the 20" pattern was off paper. It just didn't work in my setup. I ran a boresnake through the barrel after each shot.(https://uploads.tapatalk-cdn.com/20220329/cd40be5e5909407e3ce7f09e6ac3e350.jpg)(https://uploads.tapatalk-cdn.com/20220329/3c61720c31a0a4b3a0fdef7f1360e855.jpg)(https://uploads.tapatalk-cdn.com/20220329/9f7b4cc17f3af3a47a55b2e4c0a802ad.jpg)