I read or heard somewhere that pressure is what stresses barrels and recoil is what stresses stocks. Made sense to me. Light loads can still produce a high chamber pressure and recoil is the result of an aged old law of physics; force = mass x acceleration. On fluid steel guns I am more concerned about recoil than chamber pressure. I reload 100% of the shells I shoot in my Parker's. Reloading allows me to control the pressure and recoil. Parker's taught me how effective and deadly light loads can be. Then I learned how pleasant it is to shoot light loads. 3/4 ounce loads in a 20 and 7/8 ounce loads in a 12 crush clay pigeons. Step up to 7/8 in the 20 and 1 to 1 1/8 ounce in a 12 and you are good to go for all but Goose and Turkey. Good luck and good hunting.
PS. I have even watched a member here fold a few geese clean with 7/8 ounce 20ga. They work fine if you are close enough.
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