yeah, i am. the same load will kick more out of a lighter gun, understood. i guess what i'm asking is, is the extra kick really that noticeable with target loads to warrant not going with 20ga ? everyone handles kick differently but lets say you shot a 12 ga for a day and then a 20 ga for a day, is the lighter gun really going to be like, woah that hurts, i wish i had this exact same gun in 12ga ?
Its not a measure of gauge, there are plenty of 20/28g that are 8.5+ lbs and easily help with recoil. However none of them are 'field' guns. If you want something to carry in the field as , one of the prerequisites, it has to be light. Hauling a 8.5lb gun sounds easy, but believe me it gets harder every second! And in a field setting you only shoot it 10 times a day if you are lucky, so whats the point of a heavier gun?
The problem arises when you try to take the same gun to the range. The repeated strain, even with lighter loads, is very noticeable. The key there is repeated strain. It leads to flinch, it leads to bruising, it leads to closing your eyes, and ultimately, 100% is not transferred to you, some is absorbed by 'slop' in the receiver, so it leads to wear. Not only weight, but quality should be examined, which is why there are no pros shooting Stoeger Condors - even though they weigh as much as my boat anchor.
There are guns in middle earth, but of course it is important to note that 'field' guns do not have a strong pistol grip, usually they are straight grip or Prince Of Wales modified grip, not entirely the best for sporting.
I think of it like this
Mgun x Vgun = Mshot(Vshot) + Mwad(Vwad) + Mpowder(Vpowder)
these are the only factors (mass x velocity) that affect Vgun, or the actual recoil. btw, poor fit can increase the perceived recoil, which is just as bad!
If we isolate the Vgun (recoil), we are dividing the small energy of the cartridge by the large mass of the gun. The larger the mass of the gun, the lower the recoil, and it goes down very quickly.
So - no perfect gun for multi applications is the story. But, carrying a sporter in the bush sucks. So get a Italian made O/U field grade ( I stand by the Franchi Instinct L in 12g and Epps has a couple used) and shoot it learning what you really want from an O/U.
C